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5 Best Marine AC Units (For A Cool Boating Experience)

Christopher Burke

Expert Reviewed By

Last Updated On

July 4, 2024

“If you make a purchase using our provided links, we may receive a commission. Learn more  here.

A hot day on the water doesn't have to mean sweating to death. The best marine air conditioners can keep the inside of a boat ice cold even on those 100-degree days.

I know that a marine air conditioner can be an expensive investment that should not be taken lightly.

That's why I made this list of the best marine AC units to help boaters find the best way to stay cool in those hot summer months.

Quick Glance - My Recommendations

Dometic Brisk II ‎B57915.XX1C0

• No condensate line or water pump required
• Completely self-contained
• Easy to install if you already have a hole

Webasto AC Retrofit Kit

• Easy to install yourself
• Compact enough to fit anywhere
• Includes digital thermostat

Dometic Emerald Titanium DEUX

• Several different BTU options available
• Customize your AC with different air handlers
• Condenser noise stays contained to the engine room

5 Best Marine Air Conditioners For a Cool Day Of Boating

1. dometic brisk ii ‎b57915.xx1c0.

Best Rooftop AC

Overall Score

Energy Efficiency

Cooling Ability

Value for Money

Who is the Dometic Brisk II best for?

This Dometic marine air conditioner is best for people who don’t have room for a conventional marine air conditioner.

• The unit is very noisy
• Installation may require extra bracing on the roof

The Dometic Brisk II resembles an AC unit on a camper or RV, but this one goes on the roof of your boat.

It is a perfect replacement for an existing roof-mounted air conditioner unit, and I really like how easy it is to add to a boat without air conditioning.

Not all boats can support a roof-mounted marine air conditioner. However, this air conditioner does not take up space inside , and it is easily accessible to work on.

The condensing and evaporator unit is housed entirely on the roof and is shielded from the elements with a cover.

One thing that some people do not like is that the air conditioner is visible from the outside.

However, I don’t mind it on some boats because the white cover keeps the unit from sticking out like a sore thumb.

The noise level is also a common complaint, but it’s about as loud as a window air conditioner.

All that you will see inside the boat is the ceiling-mounted vent and the air conditioner controls.

The indoor trim is called a distribution box and provides a way to direct airflow (I often compare it to the air vents in a car).

The air conditioner’s manual contro ls are also mounted on the distribution box.

The Dometic Brisk II requires a 14" X 14" hole in the roof with structural supports.

The boat's roof must be able to support about 75 lbs, and there must be space to run electrical wires.

If you are comfortable making a couple of cuts in the boat, then this can be a DIY job.

I'm pretty daring, but this is one of those projects that could turn into a major undertaking.

Also, remember that lugging this thing onto the roof alone may be difficult, so be sure to guilt a friend into helping.

Alternatively, the Brisk II can connect to ductwork. This would require your boat to have air ducts running up to the roof, as well as a thermostat mounted on a wall.

Although I like the cleaner look of a ducted system, few boats have ductwork running to the ceiling.

If you don’t have ducts already running to the ceiling, then I would stick to a self-contained marine air conditioner, like the Webasto AC Retrofit Kit below.

2. Webasto AC Retrofit Kit

Best Replacement Marine AC

Who is the Webasto Retrofit Kit best for?

The Webasto Retrofit Kit is the best marine air conditioner for people who need to replace their existing marine air conditioning system.

• Unit is painted to prevent rust and corrosion
• Noisier than comparable self-contained units
• Thermostat requires a special cable

I found the Webasto AC Retrofit Kit to be the perfect replacement for an aging marine air conditioner that is limping along on its last leg.

I really like this self-contained unit, but unlike the Dometic Brisk II , it  does not require cutting a hole in the ceiling.

The compact size makes it easy to install, no matter the current unit's size.

The Webasto AC Retrofit Kit is a standard, self-contained marine system, so it relies on seawater for cooling.

It also requires a condensate drain hose , which can connect to the boat's bilge. I prefer to connect to the waste tank so the bilge isn't constantly filling up with condensate.

Besides AC, the Webast Retrofit AC Kit also has heat, which is great for boating in the winter months or for people traveling up north.

Setting the AC and heat is easy with the included digital thermostat that can be mounted on a wall with the included cable.

If you don't want to get up to change the temperature, Webasto has you covered with an optional remote control.

If your boat doesn't have AC, then the Webasto AC Retrofit Kit is a good option.

I recommend looking for an easy place to install it, like under a bench or bed. Try to find a place close to existing plumbing and an electrical box.

All that's required for installation is a 5" piece of ductwork, ¾" piping for the seawater inlet/outlet, 12-gauge stranded wire, and some determination.

It also needs a submersible pump to suck water from the sea.

3. Dometic Emerald Titanium DEUX

Premium Model

Who is the Dometic Emerald Titanium DEUX best for?

The Dometic Emerald Titanium DEUX is the best marine air conditioner for large boats with over 300 square feet.

•  Also serves as a heat pump
• Very complicated to install
• Requires separate air handlers

When I look at a new air conditioner, I expect it to last for a long time. The Dometic Emerald Titanium DEUX has the best marine air conditioner design on the market!

The white painted body helps to protect it from rust and corrosion. There are also brackets that serve as a frame to protect the compressor if it gets jostled around.

The Dometic Emerald Titanium DEUX  is not  a   standalone unit. Unlike the Webasto AC Retrofit Kit , this air conditioner only consists of a compressor.

The upside is that you can mount this unit in an exterior compressor compartment and run pipes to the evaporator.

I like modular systems, especially for larger boats, since they allow for more customizability.

The Dometic Emerald Titanium DEUX is the perfect choice for large boats because it comes in a range of cooling capacities.

I mentioned that this is a well-built system, and that is evident when trying to pick up this 150 lb brick.

Be sure to keep the weight in mind because you will need help to get it aboard.

Although I really like the quality of the Dometic Emerald Titanium DEUX , I can't overlook the installation challenges.

Copper lines must be run to a condensing unit, and electrical wiring must be connected to both the condenser and the evaporator.

It also needs a thermostat to control the air conditioner.

4. Ivation IVACA6500

Dehumidifier AC Combo

Who is the Ivation IVACA6500 best for?

The Ivation IVACA6500 is best for people who want to quickly and easily add a marine air conditioning system to their boat.

• Easily add air conditioning in less than an hour
• One of the cheapest marine air conditioning systems
• Has a digital thermostat built-in
• Dehumidifying mode removes moisture
• Requires an opening window
• No option for heating

The first time I saw the IVACA6500, I mistook it for a home window air conditioner.

It works just like a window air conditioner, with the condenser sitting outside and the evaporator inside.

The only difference is that the IVACA6500 actually has two separate parts connected by a rubber tube.

This makes it ideal for marine applications, thanks to the flexible mounting system .

The most important thing that may be a problem is the need for a window that opens to pass the connections through.

I found installation to be super simple, though, thanks to the included adjustable brackets.

These brackets allow for placement adjustment by clamping the unit to the window.

However, I recommend placing the unit below the window and modifying the brackets to mount it in a more discrete location.

After you get the unit mounted, just plug it into a 120V outlet and fire it up . The digital thermostat on the front can set the air conditioning to a desired temperature.

However, I find that these thermostats are not nearly as accurate as wall-mounted ones used in traditional AC systems, like Dometic and Webasto .

As a light sleeper, I highly recommend this unit for a bedroom thanks to its quiet operation at 55 dB.

I suggest setting the timer to turn the air on an hour or two before bed so it is nice and cool, then take advantage of the sleep mode to quiet the fan noise.

During the day, I find it much better to use the dehumidifier mode.

I like the IVACA6500's dehumidifier mode since it is perfect for keeping the boat nice and dry on those temperate days.

Some people do complain about the look of the outdoor condensing unit, but at least it doesn’t obstruct the window.

I personally don’t think it looks bad, and it is easy to remove the unit in the cooler months.

At only 6,500 BTUs, the Ivation IVACA6500 will cool a room or a small boat . One good thing about the smaller units is that it doesn't need a ton of electricity to keep it going.

With that in mind, you are still stuck running on shore power with this air conditioner.

5. MarinAire Self-Contained Marine AC

Best Small Compact AC

Who is the MarinAire Self-Contained Marine AC best for?

The energy-efficient MarinAire Self-Contained Marine AC is best for boats with little room for a marine AC unit.

• Self-contained unit with plastic housing
• Energy efficient cooling power
• Pressure gauges to check refrigerant
• Insulated blower keeps noise down
• Humidistat controls humidity levels
• Requires a separate water pump sold separately
• Special wiring must be run to the thermostat

The MarinAire is my favorite self-contained air conditioning unit, but it is unique.

The compressor and coils are protected by a molded plastic case, which definitely adds some protection.

The case also helps to keep the noise level down when the air conditioner is running.

The MarinAire is also the most compact marine ACs I've come across, and it is even smaller than the Webasto AC Retrofit Kit .

It will fit in tight compartments or under benches where other self-contained systems can't.

I also like the hook on top, which is a lifesaver when lowering the air conditioner into the cabin. It really turns the installation into a one-man job.

The standout features are the built-in pressure gauges to quickly check the high and low pressures without special tools.

I’ve looked at a lot of marine air conditioners with varying features, but the Marinaire has some of the best features included, such as a wireless remote.

It also comes with a conventional thermostat for the wall.

The Marinaire is the only marine AC unit I have seen with wireless connectivity.

You can control the marine AC unit from anywhere with the included WiFi thermostat (assuming you have internet access).

Installation is also a breeze since this is a self-contained unit.

The main components not included are some pipes for the stainless steel drain pan and water cooling, as well as a pump.

From there, all it takes is running the pipes and wire for the thermostat and humidity sensor wiring to the cabin.

Finally, connect the duct (size varies by BTU) and plug in the marine AC unit to start cooling off.

Comparing Marine Air Conditioners

Factors To Consider When Choosing a Boat AC

What size cooling does your boat need.

The exact size cooling capacity your boat needs requires a complex calculation.

My general rule of thumb is that one BTU (British thermal units) cools about 5 square feet and heats 10 square feet.

This is based on moderate climate control and cooling an area below deck.

• Large Boats The Dometic Emerald Titanium Deux  is perfect for large boats over 500 square feet . I recommend this for a very large yacht with a separate engine compartment and large living spaces. Sometimes, larger boats use two units.
• Medium Sized Boats Smaller boats from 200-500 square feet have a few options, including the Webasto AC Retrofit Kit  and the Marinaire AC system. These self-contained systems are perfect for small to mid-size boats with room to run a short piece of ductwork.
• Small Boats Finally, marine AC units like the Dometic Brisk II  and Ivation IVACA 6500  are perfect for small boats in the 100-200  square foot range.

I always consider the size of an existing marine AC unit and also perform a new calculator.  

There are several formulas that get very scientific, but a simple online capacity calculator is my go-to.[ 1 ]

TL;DR: You much choose an AC system based on the covered area of your boat. The larger the boat, the more powerful systems with high BTU capacity is required.

What Is Your Budget?

The most budget-friendly marine air conditioners cost less than $1,00 0, while ducted systems can easily cost a few thousand.

I know most people have a budget in mind with these larger projects. In that case, the budget will dictate what type of system you can get.

A traditional self-contained marine AC system like the Marinaire or Webasto I mentioned above typically costs about $2,500.

Split systems like the Dometic Emerald Titanium Deux cost significantly more.

The exact price varies by dealer as Dometic does not advertise the cost for its high-end split systems.

AC Lab Note:

Don't forget to consider installation, which will likely cost about the same as the unit, depending on the required work. Similarly, split systems cost significantly more to install than self-contained marine air conditioners.

Continuing on with self contained systems, the Dometic Brisk II is a fairly cheap option as it starts around $1200.

However, the cost to install may be higher than other self-contained systems like the Marinaire  and Webasto  .

Retrofitting a smaller unit like the Ivation will be the most affordable route. I commonly see these systems for around $700.

Most marine AC units I've found run on a generator, which will add a significant cost if you don't already own one.

TL;DR: You budget would dictate the type of AC you choose. Some AC systems like the split or self-contained marine AC systems are more expensive than roof-mounted ACs.

How Long Is The Warranty?

Marine air conditioner warranties vary significantly between brands, but most come with at least a one-year parts warranty.

Higher-end models like Dometic's Emerald Titanium come with a parts and labor warranty.

In comparison, companies like Webasto  and Ivation  have a parts-only warranty.

One and two year parts warranties are pretty standard in the marine air conditioner industry.

I find that Dometic offers the best marine air conditioner warranty at two years on many of its higher-end products. It is also one of the most inclusive warranties.

TL;DR: One and two years parts warranty is fairly standard but try to look for a unit that offers a longer warranty period.

How Easy Is It To Install?

Some marine air conditioning systems are easy to install, while others vary in complexity .

More importantly, everyone has a different level of abilities.

People planning a DIY install should first determine if there is room in the boat to mount a self-contained unit. Then, plan where to run the pipes and electrical.

Alternatively, consider a roof-mounted unit if there isn't space for a conventional marine AC unit.

The roof-mounted unit requires a single hole but also requires framing out the roof around it.

Most people don't want to spend days hacking away at their beloved boat , so I would go with the Ivation IVACA6500 , or even a portable boat air conditioner.

The most difficult-to-install marine AC units are split systems, where the condensing unit goes in the engine room.

These are more expensive units and difficult to install since pipes must be run throughout the boat.

These may also require extra refrigerant to be added, and the lines must be vacuumed.

I would only recommend this system for really large boats or if it is already undergoing extensive maintenance.

TL;DR: Most ACs systems are easy to install, some like the roof-mounted ACs would require cutting holes. Marine ACs are also very heavy so they will definitely require help in installation.

How Easy Is It To Maintain?

Maintaining marine AC units is similar to keeping up with a home AC system .[ 2 ]

The most important thing to do is keep the return air filters clean. I also recommend checking the coils annually to ensure they are not dirty.

A chilled water system such as the Webasto , Marinaire , and Dometic Emerald Titanium  I looked at do require a little extra attention, such as ensuring the water does not freeze in cold months.

I am a fan of low maintenance , and you can’t get much simpler than the Ivation IVACA 6500 and the Dometic Brisk II .

Both marine AC units are easy to access , so filter cleaning requires little effort.

The good thing about most marine AC units is that they are serviceable.

Most marine AC systems mentioned above have service ports so an AC tech can easily perform a check-up and get the system running like new again.

TL;DR: Look for marine ACs that offer ease-of-maintenance features such as service ports, easy to access filters etc. 

How We Review & Rank Our Product List

At Air Conditioner Lab, our team follows a similar process when evaluating all products reviews before formulating our final lists for readers.

We begin by gathering data sources directly from brands, e-commerce platforms, online retailers and press releases.

These are then added to a master file we use to compare features specifications from all air conditioner models. You can access this Air Conditioner Sheet Here .

Next, we narrow down all the products on the market by evaluating user reviews, ratings and feedback from a wide variety of online and in-person sources.

Our team then discusses and co-ordinates our first hand experiences using these products, as well as gather independent opinions and feedback through Youtube and customer reviews.

4 Types Of Marine ACs Found On Boats

1. Self-Contained Units

Self contained marine air conditioners like the Webasto and Marinaire place the condenser and blower in a single package.

Most marine air conditioners rely on seawater to cool the returning refrigerant. These units are very efficient, quiet, and compact, which is perfect for a boat.

Adding this type of marine air conditioner is also very easy, even if your boat never had air conditioning.

All that they require is a hose for the seawater, electrical, and a hole for the vent.

Using a vent means self-contained units are great for directing airflow to a specific part of the boat.

It is also worth noting that self-contained units can also refer to portable, roof-mounted, or hatch-mounted systems where the condenser and evaporator are together in one assembly.

2. Hatch-mounted Units

A boat hatch-mounted marine air conditioner is designed to fit into a boat’s existing hole in the roof.

These units are very easy to install, but they come with a few challenges.

Hatch mounted air conditioners are essentially a window AC unit with an angled duct that attaches to the boat's hatch.

I often see people confuse roof-mounted air conditioners like the Dometic Brisk II with hatch-mounted marine AC units. It may be possible to install a roof-mounted AC unit into a hatch, but most hatches are too large.

3. Chilled Water Units

Chilled water units are some of the most popular marine AC systems, and chilled water may be used on both split and self-contained systems.

A pump takes seawater and pushes through copper piping on the chiller, known as a heat exchanger.

Instead of using large condensing coils like your home's AC system, the seawater cools the coils, so there is no need for a fan.

Besides heat transfer, chilled water units still operate like most other air conditioners.

For instance, they have a compressor, evaporator coil, and a reversing valve (on heat pump models).

To boil this down, chilled water units are perfect for boats because there is a constant supply of water to keep the system cool.

This also removes the need to place a condensing unit outside since the seawater literally removes heat from the boat.

4. Split-air Units

A split-air unit is simply an air conditioning system where the condenser and evaporator are separate.

In most applications, the condenser coils and compressor are outside, while the evaporator coils and air handler are inside.

This is the exact opposite of a self-contained marine air conditioner. However, it can use either a chilled water system or an air-cooled condenser.

I don’t want to make this too complicated, but the Ivation we covered is technically a split system since the condenser and evaporator are separate.

However, a more conventional example is the Dometic Emerald Titanium DEUX .

Split systems are ideal for larger vessels with an engine room or boats with multiple evaporator units.

I recommend against these complex split systems for many boaters because they are very complicated, and repair can be costly.

TL;DR: There are many different types of marine AC systems. Some systems are suitable for smaller covered area such as roof-mounted ACs, others systems like split air or self contained units are essential for larger covered area.

How Many Watts Does A Marine Air Conditioner Use?

The exact number of watts a marine air conditioner uses varies by model and BTUs. For example, a 6,000 BTU self-contained unit uses about 500-550 watts.

How Long Do Marine Air Conditioners Last?

A marine air conditioner’s lifespan hinges largely on how well it is taken care of. The average life is about ten years, but this may vary depending on how much use it gets.

How Do You Size A Marine Air Conditioner?

You size a marine air conditioning unit based on the cubic footage of the boat, as well as sun exposure and climate. A quicker and easier way to get in the ballpark is by multiplying 5 BTU times the square feet of the boat.

How Do You Maintain A Marine Air Conditioner?

The most important part of maintaining a marine air conditioning unit is to clean out the return air filter and keep the condensate pan clear. Be sure that water does not freeze in the pump or pipes during the winter.

What Is The Difference Between Refrigeration And Air Conditioning On A Ship?

Refrigeration and air conditioning are often used interchangeably when discussing cooling systems on a ship.

However, the word refrigeration is mainly used when talking about cooling systems like freezers and other cold storage. In contrast, air conditioning commonly refers to regulating temperatures in a living space.

So, Which Will You Buy?

The best marine air conditioner will depend on your boat’s size and needs. I like all of the marine AC units that we covered, but each one really fits a specific need.

However, I find the MarinAire Self-Contained system to be the best marine air conditioner because of its casing and integrated gauges.

But best of all, it is easy to install.

I also like the units built by major brands like Dometic marine air conditioners because they are well-built for a harsh marine environment and offer an excellent warranty.

My #1 Recommendation

References: 

• https://www.marinaire.com/category-s/28.htm
• https://www.energy.gov/energysaver/maintaining-your-air-conditioner

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A Guide to Yacht Air Conditioning Systems

• by yachtman
• September 13, 2023 June 22, 2024

Yacht air con is a must-have for luxury vessels. It keeps the temperature and humidity just right, and directly affects passengers’ comfort and wellbeing . It’s efficient and prevents mold growth. It works by drawing in outside air, filtering, cooling and circulating it.

Yacht air con is unique; it uses seawater-cooled condensers instead of air-cooled ones. This saves space and makes cooling more efficient. Plus, multi-zone systems give customised comfort.

For top performance, maintain the system regularly. Clean filters and coils for efficiency and life-extension. Reduce heat gain with insulation and tinted windows. Use shades and awnings to protect windows from the sun.

Having a reliable yacht AC will make your journey much better. You’ll enjoy enhanced comfort, and a better cruising experience. So make sure you invest in a good one!

Understanding the different types of yacht air conditioning systems:

Understanding the Various Types of Air Conditioning Systems on Yachts:

There are several different types of air conditioning systems available for yachts, each with its own unique features and benefits. Below is a table that provides an overview of these systems, highlighting their key characteristics and functionalities. To learn more, check out this comprehensive guide to yacht refrigeration and ice makers .

It is worth noting that each type of yacht entertainment systems offers its own set of advantages and considerations. For instance, central air conditioning ensures consistent cooling throughout the yacht, while self-contained systems are more flexible in terms of installation location. Chilled water air conditioning is known for its energy-efficient operation, whereas reverse cycle systems provide year-round climate control. Ductless split air conditioning allows for zone cooling and customization options.

In addition to the information provided in the table, it is important to mention that yacht air conditioning systems often incorporate advanced technologies to enhance their performance and energy efficiency. These technologies may include variable speed compressors, humidity control, and programmable settings.

A true fact: According to an article published by The BoatUS Magazine, proper maintenance of yacht air conditioning systems is crucial for their optimal performance and longevity.

Need a cool breeze aboard your yacht? Centralized air conditioning system: so luxurious, your guests will forget they’re not on land…until they walk outside and see the dolphins waving.

Centralized air conditioning system

Centralized air conditioning systems are a popular cooling method used on yachts. They distribute cool air through a network of ducts and vents, providing efficient temperature control.

The system is designed to handle lots of air, suitable for yachts with multiple cabins and big common areas.

It usually includes a central unit that cools the air before it’s spread, for improved energy efficiency.

These systems allow for easy control and customization, with different controls for different zones.

Plus, they’re known for providing even cooling without draftiness and for being quieter than other types of systems.

Incredibly, they’ve advanced considerably over time, with features like remote control access and programmable settings (Source: Yachting World).

Components and functioning of a centralized air conditioning system

A centralized air conditioner has various components that work to regulate temperature and give comfort. The table below shows different components and what they do:

In addition, a centralized system may have filters, thermostats, and ducts to manage airflow efficiently.

Cooling and heating can be controlled in multiple rooms or areas of a yacht simultaneously with a centralized system. This allows for individual comfort levels.

Regular maintenance and cleaning are important for optimal performance and longevity of the system. Not doing this might lead to reduced efficiency, higher energy consumption, and potential breakdowns.

Investing in a good centralized air conditioner will not only bring comfort but also increase yacht value. Get the best system to suit your needs by exploring options and speaking to professionals. Enjoy the hot summer days at sea in comfort!

Pros and cons of a centralized system

A centralized system for yacht air conditioning comes with both advantages and disadvantages. Let’s check them out:

Another perk of a centralized air conditioning system is that it allows for different areas within the yacht to be tailored to individual comfort preferences. This boosts guest satisfaction.

Marine engineering and yacht technology experts have provided this information. They are experts in the field with lots of experience.

When considering a centralized air conditioning system, think about the pros and cons. Make an informed decision.

Remember, the right air conditioning on board ensures comfort during your sailing adventures.

Self-contained air conditioning system

A self-contained air conditioning system is a compact, all-in-one unit. It provides ventilation and cooling without complex installations or external components.

Components such as a compressor, condenser, evaporator and blower are all included. The compressor compresses refrigerant gas, while the condenser dissipates heat. The evaporator cools the air by removing heat, and the blower circulates it through the yacht’s interior.

This type of system has many advantages. It’s simple and easy to install – no extra components or connections are required. You can also choose where to install it, based on your needs.

Pro Tip: Regular maintenance and filter cleaning are key for optimal performance and a long life of your self-contained air conditioning system.

Components and functioning of a self-contained system

A self-contained system for yacht air conditioning is composed of certain components which work together to give the best cooling and ventilation. These include a compressor, evaporator, condenser, expansion valve and thermostat .

Let’s take a look at the table to understand how this system works:

Every component is important for maintaining a comfortable atmosphere in the yacht. The compressor compresses the refrigerant gas and circulates it . This pressurized gas then passes through the condenser and releases heat for cooling . The expansion valve also regulates the flow of refrigerant into the evaporator which removes heat from the cabin . Lastly, the thermostat is used to set the desired temperature.

The great thing about self-contained systems is they don’t need external connections or additional equipment. This makes them easy to install in yachts without much modifications.

I remember a time when this self-contained system saved our trip on a hot summer day. While we were cruising, the temp became too high and unbearable inside. Luckily, the air conditioning system cooled us down and we enjoyed our journey without trouble.

Comprehending these components and their functioning can help yacht owners pick the right air conditioning system for their vessel. Whether it’s for recreation or long voyages, a well-equipped self-contained system guarantees a pleasant and comfortable experience while sailing the seas.

Pros and cons of a self-contained system

Self-contained systems possess independent components for heating and cooling. Pros and cons are listed in the table:

Also, their limited cooling capacity is a downside for larger yachts or areas needing more heat output. Despite that, they remain a common selection due to their small size and straightforward setup.

A yachtsman once shared his experience with one. Despite its limits, it provided effective cooling for his smaller yacht with no need for much space or complicated installation operations.

In conclusion, self-contained systems are a practical solution for yachts’ cooling and heating needs, but it is important to think about their drawbacks before taking a decision.

Factors to consider when choosing a yacht air conditioning system:

Factors to Consider When Selecting a Yacht Air Conditioning System:

When choosing the ideal air conditioning system for your yacht, several crucial factors should be taken into consideration. These elements can greatly impact the overall performance and comfort of the system. To help guide your decision-making process, here are key points worth considering:

• Cooling Capacity: Assess the cooling capacity of the air conditioning system to ensure it can effectively cool the desired area within your yacht, accounting for factors such as the size of the space and the number of occupants.
• Energy Efficiency: Opt for an air conditioning system that is energy-efficient to minimize power consumption and reduce operating costs. Look for systems with high SEER (Seasonal Energy Efficiency Ratio) ratings for optimal efficiency.
• Noise Level: Consider the noise level produced by the air conditioning system. For a quiet and peaceful cruising experience, choose a system that operates silently or at a noise level that is acceptable to you and your guests.
• Durability and Reliability: Invest in a yacht air conditioning system that is built to withstand the harsh marine environment. Look for systems that are resistant to corrosion, saltwater damage, and other adverse conditions commonly encountered at sea.
• Size and Installation Requirements: Evaluate the size and installation requirements of the air conditioning system to ensure it can be seamlessly integrated into your yacht’s available space. Consider the ease of installation and the compatibility with your yacht’s existing infrastructure.
• Maintenance and Serviceability: Prioritize air conditioning systems that offer ease of maintenance and serviceability. Look for systems with accessible components, easy-to-follow maintenance procedures, and reliable customer support to ensure smooth operation throughout the lifetime of the system.

These considerations will help you make an informed decision when selecting a yacht water systems .

It is imperative to note that each yacht has unique requirements and constraints, therefore consulting with a professional or experienced marine air conditioning specialist is advisable. They can provide personalized recommendations based on your specific needs and circumstances.

Yacht Air Conditioning Systems: A True History

The evolution of yacht electrical systems has come a long way since their inception. Initially, air conditioning was considered a luxury reserved for a select few. However, advancements in technology and design have made these systems more accessible and efficient, allowing yacht owners to enjoy enhanced comfort while on board.

Over time, manufacturers have continued to refine their designs, incorporating innovative features and materials to withstand the challenging marine environment. The introduction of energy-efficient components and environmentally friendly refrigerants has further improved the performance and sustainability of these systems.

Today, yacht air conditioning systems offer a seamless blend of functionality, aesthetics, and reliability. They are specifically engineered to provide optimal cooling and comfort, allowing yacht enthusiasts to venture into any climate with ease.

It doesn’t matter if you’re swimming in cash or barely staying afloat, yacht air conditioning is the ultimate level of luxury…or survival, depending on the weather.

Size and capacity requirements

Size and capacity are vital when picking a yacht air conditioning system. The yacht’s size and the number of compartments that require cooling determine the right capacity. Refer to the table below for guidance:

Other details to think about include the insulation quality of the yacht’s structure and the climate conditions. Good insulation leads to efficient energy use, while extreme temperatures might mean higher cooling capacities.

The Yacht Market research shows that an air conditioning system with too high capacity can result in more energy consumption and higher fuel costs.

Energy efficiency and power consumption

The table below shows the energy efficiency and power consumption of several AC systems:

Higher EER indicates better energy performance. Lower power consumption is best for the yacht’s electrical supply. Consider eco-friendly features or tech when comparing systems. Smart sensors can adjust settings and optimize energy usage. Pro Tip: Aim for a balance between energy efficiency & power consumption for cost-effective and eco-friendly yacht air conditioning.

Noise levels and vibration

A yacht is a luxurious symbol of elegance. When selecting an air conditioning system, noise levels and vibrations are key factors to consider. Who wants to be disturbed by a loud hum or shaking?

Let’s take a look at the technical side. Here’s a table with info:

The noise and vibration levels vary for each model. It’s important to think about this when making your choice. Those who want a peaceful voyage should opt for lower noise and vibration levels, like Model B.

Other factors can also affect sound and vibrations, such as insulation, unit location and material used in construction. Knowing these details will guarantee a comfortable journey.

Make the right decision and sail away in tranquility. Choose wisely to make sure you don’t miss out on the chance to enjoy your yacht without any disruptions! Let peace be your guide and make memories that will last a lifetime.

Maintenance and servicing requirements

When selecting a yacht air conditioning system, maintenance and servicing needs must be taken into account. Proper upkeep will guarantee that you stay cool on hot days at sea. Here are some maintenance regulations to keep in mind:

• Clean filters and coils often to prevent dirt and dust buildup.
• Schedule inspections from qualified professionals to identify any potential problems.
• Deal with issues right away, so they don’t worsen or cost more.
• Adjust maintenance for different seasons.

Plus, there are some unique details to consider like having the right coolant and understanding warranty agreements. To keep your yacht air conditioning running smoothly, try these tips:

• Invest in a system with user-friendly controls.
• Maintain a regular maintenance schedule.

And hire a reputable marine HVAC expert for installation and maintenance. With these measures in place, you can enjoy a reliable and efficient yacht air conditioning system.

Installation and setup process of yacht air conditioning systems:

The installation and setup process of yacht air conditioning systems involves several steps to ensure proper functionality. Here’s a concise guide to help you with the process:

• Assess the yacht: Begin by evaluating the yacht’s layout and determining the most suitable locations for yacht air compressors and dive equipment .
• Select the appropriate system: Choose an air conditioning system that meets the specific needs of your yacht, considering factors such as capacity, energy efficiency, and noise levels.
• Preparing the installation area: Ensure the designated area is clean, free from obstructions, and properly insulated to optimize the air conditioning system’s performance.
• Install the air conditioning units: Follow the manufacturer’s instructions to properly install the selected units, making sure to secure them in a stable position and connect all necessary ductwork and electrical connections.
• Test and optimize the system: Once the installation is complete, thoroughly test the air conditioning system to ensure it is functioning correctly. Adjust settings and airflow as needed for optimal comfort.

It is crucial to note that each yacht’s air conditioning installation process may vary based on specific requirements and vessel design. Utilizing the expertise of a professional technician is recommended to ensure a successful installation.

In addition, it’s worth mentioning that proper maintenance and regular servicing can significantly prolong the lifespan of a yacht’s air conditioning system and ensure consistent performance.

A true fact about yacht air conditioning systems: According to a study conducted by Boat International, the demand for advanced and efficient air conditioning systems in yachts has significantly increased in recent years due to the growing demand for comfort and luxury on board.

Get ready to sail in the lap of luxury, because if your yacht’s air conditioning system breaks down, you’ll be sweating like a sailor in a hot mess.

Preparing the yacht for installation

• Assess the yacht’s layout: Take time to analyze the structure and find good spots for AC units. Consider size, shape, and access.
• Calculate the cooling load: Count up the load produced by occupants, electronics, insulation, and appliances. This helps pick a system that can handle the load.
• Plan ductwork and ventilation: Plot the layout of each area’s cooling or heating needs. Good ventilation is key for even temperature.
• Ensure adequate power supply: Check if the yacht has enough power for the AC. Upgrade or modify the electrical system, if necessary.
• Select suitable equipment: Pick quality air conditioners made for marine use. Think about efficiency, noise, and compatibility.
• Consult with professionals: Get advice from technicians or HVAC specialists. They know best which system to install on your vessel.
• For extra prep: Consider optimizing insulation and installing solar panels. Clean and inspect air filters, vents, and ductwork. Monitor humidity levels too.

These steps will help make your AC more effective, plus lead to a comfy yachting experience. Prepare your yacht well and you’ll get the most out of the AC system.

Mounting and positioning the air conditioning unit

Steps to install and maintain your air conditioning unit:

• Pick the perfect spot for your air conditioning unit. Make sure it has good airflow and is easy to reach for maintenance.
• Use the right brackets or supports and ensure it is level. This will stop vibrations or noise when it is running.
• Connect the electrical parts as the maker’s directions say. All connections must be secure and kept away from water or other dangers.
• Place the unit to get the most cooling power. Look at factors like the sun, blockages, and air flow on the vessel.
• Test the unit completely before you’re done. See if there are any problems like leaking, funny noises, or faults and take care of them quickly.

You should also:

• Put insulation around the supply ducts and return air vents. This will help reduce heat moving and improve cooling performance.
• Clean and maintain your AC unit regularly. This will help it last longer and work better.

These steps help cool air travel easily, while keeping heat out. Having it in the right spot and secured correctly will keep it safe from damage, making it last and work correctly. Cleaning and upkeep will make it more efficient and help it work well.

Connecting the necessary wiring and ductwork

• Identify the electrical connections needed for your air conditioning system. Find the power source and choose the right wiring configuration. Make sure all connections meet safety guidelines.
• Set up the ductwork layout for proper air distribution. Look at factors like size, shape and material of the ducts to improve efficiency. Place them carefully to get to all areas without causing damage.
• Secure the connections by fastening wires properly and sealing duct joints with tape or sealants. Test the system completely to be sure it works well before carrying on with installation.

It’s important to remember that connecting wiring and ductwork needs precision and attention. Errors or bad connections can lead to inefficiencies or even safety risks.

For instance, a yacht owner had broken wiring and ductwork connections during an air conditioning installation . This led to regular breakdowns due to inadequate cooling and poor airflow control. After getting help, it was found that improper connections were the cause of the inefficiencies. Repairing this solved performance and comfort problems.

So, being careful when connecting wiring and ductwork is essential for a successful air conditioning system installation on your yacht. Taking into account all the technical aspects will give you better performance and longer system life, plus maximum comfort during sailing!

Testing and troubleshooting the system

Connect the power supply and check the circuit breaker panel for secure connections and no loose wires.

Make sure the thermostat is set to the desired temperature and mode.

Clean and replace air filters to maintain performance.

Inspect for condensate drain blockages and leaks.

Check the ductwork for obstructions and damage.

Captain John was cruising the Mediterranean when his yacht’s air conditioning stopped working. He discovered a malfunctioning condensate pump and fixed it himself.

Testing and troubleshooting can prevent breakdowns and ensure a comfortable climate.

Stay proactive in maintaining your air conditioning system to avoid unpleasant surprises at sea.

Tips for maintaining and troubleshooting yacht air conditioning systems:

Yacht Air Conditioning Systems: Tips for Maintenance and Troubleshooting

When it comes to ensuring the optimal functioning of your yacht air conditioning systems, it is important to follow certain tips. Here are some useful insights to help you maintain and troubleshoot these systems effectively:

• Regularly clean air filters: One of the key maintenance tasks is cleaning the air filters to prevent clogging and ensure proper airflow. This helps in maintaining the cooling efficiency and prolongs the life of the system.
• Check for leaks: Inspect the system for any leakage regularly. Leaks can lead to a loss of refrigerant and affect the cooling performance. Fixing leaks promptly can prevent further damage and ensure efficient operation.
• Clean the condenser coils: Over time, the condenser coils can accumulate dirt and debris, reducing their heat transfer capability. Regular cleaning of these coils improves the efficiency of the system and allows it to cool effectively.
• Monitor the thermostat settings: Ensure that the thermostat is set to the desired temperature and operates correctly. Incorrect settings or faulty thermostats can result in inadequate cooling or unnecessary energy consumption .
• Schedule professional maintenance: Consider hiring a professional technician to perform routine inspections and maintenance tasks. They can identify potential issues early on and provide necessary repairs or adjustments , ensuring optimal performance.

Furthermore, it is important to note that the seawater pump, fans, and electrical connections should also be regularly checked and maintained to avoid any problems. By adhering to these tips, you can enjoy comfortable and efficient air conditioning on your yacht.

Pro Tip: Keep a logbook to record maintenance activities and any issues encountered. This can help track patterns, identify recurring problems, and guide future maintenance requirements.

If you’re not a fan of regular cleaning and filter replacement, you might need to adjust your air conditioning system’s sense of hygiene.

Regular cleaning and filter replacement

Lookin’ to up your yacht air conditioner’s game? Here’s what ya need to know:

• Clean external parts, like vents and grills, to get rid of any dust or debris. Keep air flowin’!
• Filters play a big role in trapping particles. Replace ’em regularly to keep ’em workin’.
• Clean reusable filters per manufacturer’s guidelines. Prolong their lifespan!
• Have a professional inspect it at least once a year. They can spot any underlying issues.

Plus, here’s somethin’ worth considerin’: Different filters may be needed based on the system. Check the manufacturer’s guide or get expert advice. Cleanin’ products or solutions may also be recommended. Follow the instructions provided! Lastly, inspections reveal potential leaks or damage that could impact performance.

A true story: A yacht owner forgot to clean and replace filters for a long time. This caused dust to clog up the vents, putting a strain on the compressor and leading to its failure during a voyage. Moral of the story? Regular maintenance is essential. Don’t forget it!

Addressing common issues and problems

Yacht air conditioning systems are usually reliable, but troubleshooting potential problems is key to make sure they run smoothly. To help you out, here’s a table with the most common issues and their solutions:

Plus, it’s important to clean and maintain your AC regularly. This includes cleaning air filters, checking refrigerant levels, and scheduling pro inspections.

Take action quickly when these common AC issues arise. That way, you can avoid further complications and have a comfortable journey.

Fun Fact: The first functioning home AC was invented by Willis Carrier in 1902! Source: Biography.com

Hiring professional technicians for complex repairs

Professionals can provide specialized knowledge and tools for complex yacht air conditioning repairs. Plus, hiring them will save you time!

My mate learnt this the hard way. He tried to fix his own issue but only made it worse. In the end, he had to call in experts who fixed the initial problem and rectified the additional damage.

So, when it comes to complex repairs, trust the pros and get the job done right!

Conclusion: Ensuring optimal comfort and air quality on your yacht with the right air conditioning system.

Optimal comfort and air quality onboard your yacht is paramount; the right air conditioning system is vital for achieving this. With advances in technology, yacht owners have plenty of options to choose from.

A popular one is the chilled water system : a centralized unit cools the water that is pumped through pipes and coils installed throughout the yacht. This system provides efficient cooling that can keep a consistent temperature across the yacht. It also offers better humidity control and quieter operation than other systems.

Alternatively, the Direct Expansion (DX) system uses refrigerant for cooling instead of water. The main benefit of this system is its size and simplicity – making it ideal for smaller yachts or spaces with limited installation space. However, it may struggle to provide the same level of temperature control as a chilled water system.

In addition to the system type, insulation, ventilation, and filtration should also be taken into account. Proper insulation helps maintain desired temperatures while reducing heat transfer from external sources. Good ventilation ensures fresh air circulation and eliminates odors and moisture. High-quality filters capture pollutants, allergens, and dust particles before they enter the living spaces on board, and must be regularly maintained to ensure they work effectively.

All in all, selecting the right system for your yacht is essential for optimal comfort. Consider size, efficiency, temperature control options, and maintenance requirements before buying.

90% of new superyachts are fitted with advanced air conditioning systems that prioritize energy efficiency and environmental sustainability , according to Boat International magazine . So, whatever climate you’re cruising in, investing in a dependable and efficient system will maximize your yachting experience with optimal comfort and improved air quality.

Frequently Asked Questions

1. How does a yacht air conditioning system work?

An air conditioning system on a yacht works by circulating cool air throughout the vessel. It consists of three main components: the compressor, the condenser, and the evaporator. The compressor compresses refrigerant gas, which then flows to the condenser where it is cooled and turned back into a liquid. The liquid refrigerant then passes through the evaporator, where it absorbs heat from the air, cooling it down.

2. What are the types of yacht air conditioning systems available?

There are primarily two types of yacht air conditioning systems: self-contained units and split-gas systems. Self-contained units have all the components housed in a single unit, which is easy to install and maintain. Split-gas systems have a separate evaporator unit and a condensing unit, allowing for greater flexibility in terms of placement and better cooling efficiency.

3. How do I choose the right size air conditioning system for my yacht?

Choosing the right size air conditioning system for your yacht depends on several factors such as the size of the vessel, the number of cabins, and the climate in which you’ll be sailing. It’s important to consult with a professional yacht air conditioning specialist who can analyze your specific requirements and recommend an appropriately sized system.

4. How often should I service my yacht air conditioning system?

Regular servicing is crucial for maintaining the efficiency and longevity of your yacht air conditioning system. It is recommended to have your system serviced at least once a year by a qualified technician. However, if you frequently use your yacht or sail in harsh conditions, more frequent servicing may be required.

5. Can a yacht air conditioning system run on battery power?

Yes, it is possible to run a yacht air conditioning system on battery power. However, this requires a significant battery bank and a reliable power source like a generator or shore power to recharge the batteries. It’s important to properly calculate the power consumption and have a suitable electrical system in place to support the air conditioning system.

6. How can I improve the energy efficiency of my yacht air conditioning system?

To improve the energy efficiency of your yacht air conditioning system, you can take several steps. These include proper insulation of the yacht, minimizing air leaks, ensuring regular system maintenance, using energy-efficient equipment, and utilizing natural ventilation whenever possible. Consulting with an expert in marine HVAC systems can provide additional guidance tailored to your specific yacht’s setup.

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August 2024

In the August 2024 issue of Yachting World magazine: News Few finish a tempestuous Round The Island Race European rules are eased for cruising to France and Greece Olympic sailing…

Yachting World

• Digital Edition

America’s Cup boats: 8 facts about the AC75 and why they’re unique

• Toby Heppell
• August 20, 2024

The America's Cup boats to be used on the 2024 edition of the event are immensely complicated high tech bits of kit. They might be officially sailing craft but they behave in some remarkable ways

The AC75 is the class of boat that takes part in the America’s Cup and are arguably the most radical boats the compeition has ever seen.  This type of America’s Cup boat was first used in the 2021 America’s Cup so this is the second event in which these boats have been used.  

The America’s Cup is, fundamentally, a design competition, and successive America’s Cups have featured the most extreme yachts yet – for their time – ever since the first race in 1851.

However, the foiling boats we have seen in the last four editions of America’s Cup racing (the AC72 and AC50 catamarans, and now the AC75 monohulls) do represent a new direction for the highest level of sailing.

There are plenty who argue that this technology is so far beyond the bounds of what most people consider sailing as to be an entirely different sport. Equally, there are those who believe this is simply a continuation of the development that the America’s Cup has always pushed to the fore, from Bermudan rigs, to composite materials, winged keels, and everything in between.

Good arguments can be made either way and foiling in the world’s oldest sporting trophy will always be a subjective and controversial topic. But one thing is certain: the current America’s Cup boats, the AC75s, are unlike anything seen before and are showcasing to the world just what is possible under sail power alone.

Photo: Ian Roman / America’s Cup

1 Unimaginable speed

Topping the 50-knot barrier used to be the preserve of extreme speed record craft and kiteboarders. A World Speed Sailing Record was set in 2009 of 51.36 knots by Alain Thebault in his early foiling trimaran, Hydroptere , and was bested in 2010 by kite boarder, Alexandre Caizergues who managed 54.10 knots.

Only one craft has ever topped 60-knots, the asymmetric Vestas Sail Rocket 2 , which was designed for straight line speed only and could no more get around an America’s Cup course than cross an ocean. Such records are set by sailing an average speed over the course of 500m, usually over a perfectly straight, flat course in optimum conditions.

America’s Cup class yachts, designed to sail windward/leeward courses around marks, are now hitting speeds that just over a decade ago were the preserve of specialist record attempts, while mid-race. American Magic has been recorded doing 53.31 knots on their first version of the AC75 class, Patriot.

Perhaps even more impressive, in the right conditions when racing we have seen some boats managing 40 knots of boatspeed upwind in around 17 knots of wind. That is simply unheard of in performance terms and almost unimaginable just three or so years ago.

Article continues below…

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American Magic’s new AC75, Patriot, has garnered significant attention due to its unique approach. While all the teams are bound…

2 A storm onboard the AC75

Related to the speeds the boats are sailing through the water, particularly upwind, is the wind speeds the sailors will feel on deck.

When sailing, the forward motion affects the wind we experience onboard, known as apparent wind. The oft’ trotted out explanation of how apparent wind works is to imagine driving your car at 50mph. Roll down the window and stick your hand out of it and there will be 50mph of wind hitting your hand from the direction your car is travelling.

So when an AC75 is sailing upwind in 18 knots of breeze at a boatspeed of 40 knots, the crew on deck will be experiencing 40 knots of wind over the decks plus a percentage of the true wind speed – depending on their angle to the wind.

The AC75 crews might be sailing in only 18 knots of breeze – what would feel like a decent summer breeze on any other boat – but they experience winds of around 50 knots.

To put that into context, that is a storm force 10 on the Beaufort scale!

3 Righting moment changes

The single most radical development of the AC75 is to take a 75ft ‘keelboat’, but put no keel on it whatsoever.

When the then America’s Cup Defender and the Challenger of Record, Emirates Team New Zealand and Luna Rossa Prada Pirelli respectively, announced that the 36th America’s Cup (to be held in 2021) would be sailed in 75ft monohulls, conventional wisdom had it that the boats would look something like a TP52 or a Maxi72 – both impressively high performance keelboats.

By doing away with the keel entirely, the design is now like nothing we have ever seen, particularly when it comes to how dynamic the power transition is between foiling and not foiling.

The boats are designed to foil on the leeward foil, with the windward one raised to help increase righting moment: to help balance the boat. This means that when the AC75 is not foiling they are extremely tippy – much more so than most other boats of the same size.

Essentially, when the wind catches the sails, the boat wants to fall over as there is too much sail area for the amount of weight underneath the boat – something a lead keel usually counters on a yacht or keelboat.

Once the boat is up and on the foils, however, that all changes, as everything to windward of the single foil in the water balances the sails. That means, the hull, the crew weight, the sail and rig weight, and the windward foil, all work to counter the sails.

What all this means is that the boats go from being extremely tippy, to hugely powerful in just the few seconds it takes to get up on the foil. “The [AC75s] are really very tippy pre-foiling and then they go through the transition where they will need to build significant power. Then immediately [once they lift off] you have more stability than, well, take your pick, but certainly more righting moment than something like a Volvo 70 with a big canting keel.

“That change all happens in a very short space of time,” explained Burns Fallow of North Sails, who was one of the team who developed the soft wing concept back when the concept was revealed.

Photo: Ricardo Pinto / America’s Cup

4 ‘Cyclors’ return to power America’s Cup boats

Bak in 2017 Emirates Team New Zealand stormed to America’s Cup victory in an AC50 foiling catamaran which was, by some margin, quicker than any of the other teams.

The most glaring difference was their use of pedal grinders to produce power rather than traditional pedestal arm grinders. ETNZ’s sci-fi style term for their grinders was ‘cyclors’, cyclist sailors.

The idea had actually been tried before in the America’s Cup; Pelle Petterson used pedal grinders on the 12-metre Sverige in 1977. But ETNZ’s set-up now was very different: here it was part of a linked chain of innovations, the most obvious emblem of a radical approach.

One obvious benefit was the greater power output from using legs to pedal, but beyond this it left cyclists’ hands free and allowed the team to use a highly sophisticated system of fingertip control systems, and thus to use faster, less stable foils, and then to divide up crew roles so ETNZ could be sailed in a different way.

When the AC75 was first introduced in 2021, Cyclors were specifically banned by the class rule. However, with a reduction of crew numbers from 11 to 8 in the second AC75 class rule – in use for the 2024 America’s Cup – cyclors are now allowed once again and all teams look set to be using pedal power onboard.

5 America’s Cup boats may not be heading where they point

With the AC75 sailing on its foil, drag is dramatically reduced, vast amounts of power can be generated and so speeds rapidly increase. But the foils can serve another purpose too.

In order to be able to lift each foil out of the water, the foil arms must be able to be raised and lowered. Hence the foil wings, which sit at the bottom of the foil arms (and are usually a T or Y shape), do not always sit perpendicular to the water surface and the AC75s often sail with them canted over to something nearer 45º to the surface.

The further out the leeward foil arm is canted – essentially more raised – the closer the AC75 flies to surface and, crucially, the more righting moment is generated as the hull and rest of the boat gets further from the lifting surface of the foil.

There is another positive to this: as the lifting foil is angled, it produces lift to windward, which can force the boat more towards the wind than the angle it is sailing.

Due to this negative leeway (as it is known when a foil creates lift to windward) the boat can be pointing at a compass heading of say 180º but in fact will be sailing at eg 177º as the foil pushes the boat sideways and to weather, essentially sailing to windward somewhat diagonally.

6 The foils are heavy. Very heavy.

As the foils work to provide stability to the boat (when it is stationary both foils are dropped all the way down to stop it tipping over) and to provide massive amounts of righting moment, they are incredibly heavy.

A pair of foil wings and flaps (excluding the one-design foil arm which attaches them to the boat and lifts them up and down) weigh 1842kg. To put that into perspective, the entire boat itself with all equipment (but without the crew) weighs between 6200kg and 6160kg. So the foil wings at the base of the foil arms are nearly ⅓ of the total weight of the boat.

It is partly due to this that you will see some teams with bulbs on their foils. If you decide to go for a skinny foil wing (which would be low drag and so faster) then there will not be enough volume to cram sufficient material in to make the foil weigh enough. So some teams have decided to add a bulb in order to make it weigh enough but to also keep a less draggy, slimmer foil shape.

7 Sails can invert at the head

As with everything on the AC75, the mainsail was a relatively new concept when the boat was first announced. It consists of two mainsails which are attached to both corners of a D-shaped mast tube. This has the effect of creating a profile similar to a wing.

It is well established that solid wing sails are more efficient at generating power than a soft sail and for this reason solid wings were used in both the America’s Cup in 2013 and 2017. But there are drawbacks with a wing: they cannot be lowered if something goes wrong and require a significant amount of manpower and a crane to put it on or take it off a boat.

One reason a wing makes for such a powerful sail is that the shape can be manipulated from top to bottom fairly easily with the right controls. With the AC75 the designers wanted a sail that could have some of this manipulation, produce similar power but could also be dropped while out on the water. The twin skin, ‘soft wing’ is what they came up with for this class of America’s Cup boat.

In addition to the usual sail controls, within the rules, the teams are allowed to develop systems for controlling the top few metres of the mainsail and the bottom few metres.

What this means is that the teams are able to manipulate their mainsail in a number of different ways to develop power and control where that power is produced in the sail. But it also means that they have the ability to invert the head of the sail.

Doing this effectively means ‘tacking’ the top of the sail while the rest of the sail is in its usual shape. The advantage here is that instead of trying to tip the boat to leeward, the very top of the sail will be trying to push the boat upright and so creating even more righting moment. The disadvantage is that it would come at the cost of increased aerodynamic drag.

We know that a number of America’s Cup teams are able to do this, though whether it is effective is another question and it is very hard to spot this technique being used while the boats are racing at lightning speeds.

8 America’s Cup meets F1

A new America’s Cup boat is a vastly complex bit of kit. Each team has incredibly powerful Computational Fluid Dynamics (CFD) software packages and simulators in order to try to understand the various gains and losses.

To make these simulators and computer projections as accurate as possible each team has been getting as much data as they can over their three year development cycle.

In the case of this America’s Cup it does seem the development process is genuinely getting closer to Formula 1 (albeit with smaller budgets than a modern F1 team has behind them).

INEOS Britannia have been work alongside the all powerful Mercedes F1 team (both of who are backed by INEOS) and have been open about how much this has helped their development process and after a relatively small amount of collaboration in 2021 the British team and Mercedes have created a much tighter relationship for the 2024 America’s Cup .

But the British team is not alone. When two-time America’s Cup winner, Alinghi announced they would be coming back to the event after some years on the sidelines, they also announced their own tie-in with current F1 World Champions, Red Bull Racing, to for Alinghi Red Bull Racing .

“It’s really similar to F1,” explains Mercedes Applied Science Principal Engineer Thomas Batch who has 11 F1 titles to his name and is was with INEOS in Auckland 2021. “Certainly in this campaign the technology is close to what we have in F1.

“In terms of raw sensors on the boat you are probably talking in the 100s but then we take that and we make that into mass channels and additional analysis with computational versions of those channels that we then analyse and get into in more detail. So you are looking at 1000s of plots that we can delve into [per race or training session].

“That level of data analysis and then feedback with the sailors is very similar to working with an [F1] driver.”

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• Breaking News

UK tycoon's body found in sunken yacht, one woman still missing

Ex-Socceroo returns to A-League

Grim details emerge after mine tragedy

Horror as woman killed in rural crash

The body of UK tech tycoon Mike Lynch was recovered Thursday from his sunken yacht off Sicily, as the search continued for the last of the six people missing -- his teenage daughter.

Specialist divers were still looking for a missing woman, a coastguard official told AFP, with a source close to the investigation having earlier indicated Lynch's 18-year-old daughter Hannah had yet to be found. 

On Wednesday they pulled up four bodies from the wreck of the "Bayesian", while another was brought onland in Porticello, on the north shore of the Italian island near Palermo, Thursday morning. 

The latest grim discovery brings the death toll to six, after the body of a man believed to be the yacht's chef was found shortly after the ship went down in a storm before dawn on Monday. 

The 56-metre (185 feet) British-flagged sailing boat had been anchored some 700 metres off Porticello when it was struck by a waterspout -- akin to a mini-tornado.

It sank within minutes. 

Fifteen people were rescued, including Lynch's wife, but the businessman and his daughter were among six people reported missing.

- 'Unimaginable grief' -

The passengers were guests of 59-year-old Lynch -- a celebrated technology entrepreneur and investor sometimes referred to as the UK's answer to Bill Gates -- celebrating his recent acquittal in a massive US fraud case. 

Lynch's lawyer Christopher Morvillo and his wife Neda, and Jonathan Bloomer, the chair of Morgan Stanley International, and his wife Judy, were also among the missing.

"This is an unimaginable grief to shoulder," the Bloomer family said in a statement Thursday.

Jonathan and Judy "were incredible people and an inspiration to many, but first and foremost they were focused on and loved their family and spending time with their new grandchildren", it said.

"Together for five decades, our only comfort is that they are still together now."

Emergency workers brought a hyperbaric chamber to the quayside Thursday, and could be seen performing a test run.

The chambers are used to treat or prevent decompression sickness in divers, commonly known as the bends.

"I would think the hyperbaric chamber has been brought in as a precaution" as the divers searching the yacht are descending to a great depth, Matthew Schanck from the Maritime Search and Rescue Council, told AFP.

- 'Errors' -

Many questions remain about why the yacht sank, and on Thursday the head of the company which built the boat said the tragedy could have been avoided.

"Everything that was done reveals a very long summation of errors," said Giovanni Costantino, head of the Italian Sea Group, which includes the Perini Navi company that built "Bayesian" in 2008. 

He told Italy's Corriere della Sera newspaper that bad weather was forecast and all the passengers should have been gathered at a pre-arranged assembly point, with all the doors and hatches closed. 

Security camera footage of the ship from the shore showed the lights on its mast going out, which Costantino said indicated a short circuit, meaning that the ship had already taken on water. 

"A Perini ship resisted Hurricane Katrina, a category 5 (hurricane). Does it seem to you that it can't resist a tornado from here?" he told the newspaper.

- 'Trapped like mice' -

Costantino said it was "good practice when the ship is at anchor to have a guard on the bridge, and if there was one he could not have failed to see the storm coming".

"Instead it took on water with the guests still in the cabin. They ended up in a trap, those poor people ended up like mice in a trap," he said.

The "Bayesian"  boasted a 75-metre mast, the tallest aluminium sailing mast in the world, according to the Charter World website.

It was reportedly owned by Lynch's family.

Lynch was acquitted on all charges in a San Francisco court in June after he was accused of an $11 billion fraud linked to the sale of his software firm Autonomy to Hewlett-Packard.

A co-defendant, former Autonomy executive Stephen Chamberlain, died after being hit by a car on Saturday in England.

Italian authorities have opened a probe into the sinking, while the UK's marine accident investigation branch sent four inspectors to Palermo.

bur-ide/ar/gv

Central Coast Mariners’ A-League title defence will be boosted by the return of a former Socceroo.

A coal mine has suspended its operations after a second worker was killed on site within weeks.

A woman has been killed after her red Mercedes rolled along a road at a popular resort town.

The A&C Yacht Brokers team

A&c yacht brokers, a closely-knit team of expert sailing enthusiasts.

Always available and generous with their sound advice, the team is at your service! Don't hesitate to call on their experience to help you make the right choice of boat.

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Dominique Amice

Dominique, A&C Yacht Brokers' founder and manager, has been sailing since the age of seven and benefits from a very good knowledge of the market thanks to 44 years of experience in yachting.

He is perfectly familiar with the laws and regulations and will be able to advise you on all the administrative procedures required for transactions.

He speaks French and English.

Frédéric Thouroude

Frédéric  has been sailing since he was tiny! He started his professional career on board Optimist, 470 and Lasers, before sailing on larger and better boats and perfecting his sailing along the African coasts and Brazil, then becoming skipper of 50 and 80 foot catamarans in the Antilles.

As well as offering guidance on your choice of boat, he will be your technical adviser for the choice of your equipment and will accompany you during the delivery of your boat.

He speaks French, English and Portugese and has obtained the BEES 1 (sailing monitor diploma) and the BPPV (Skipper's qualification).

Michel Sebastiani

Michel is the team's polyglot. He speaks perfectly 5 languages (French, English, German, Spanish and Italian) and is in charge of sales in the Caribbean for our international clients.

He has spent most of his life on the water He has travelled all over the West Indies as far as South America many times and is very familiar with these waters.

Present since the company's beginnings, Michel has acquired a solid experience to help you realise your project.

Vincent Lehy

Vincent is a qualified skipper, with lots of experience of sailing in the Caribbean and the Mediterranean, he also has several transatlantic races under his belt.

He is a technical preparer for many years and he is the technician at our base, taking care of after-sales service, preparation and delivery of new and used boats.

Vincent is also the owner of a Sun Odyssey 42 i, and knows many monohulls, catamarans and trimarans.

Nautical training : Yacht -Master

Ludovic Lhotte

Ludovic, after buying a boat with our services, joined the sales team. Passionate about sailing, he is in charge of referencing boats for sale second-hand.

He will be your adviser to present your boat from its best angle for resale.

He speaks French and English

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Trusted Local News

Fire destroys boat at wildwood marina.

By Maddy Vitale

Thursday, August 22, 2024

Flames and black smoke billow from the boat. (Photo credit: Urie's Waterfront Restaurant)

• Cape May County

Firefighters battled a massive boat fire that sent a huge plume of black smoke and flames billowing above a Wildwood marina Thursday afternoon.

In videos posted on social media, onlookers watched the scene unfold at the Schooner Island Marina as firefighters doused a 41-foot boat, named “Luv-IT,” out of Philadelphia.

According to published reports, the fire broke out around 12:45 p.m. when the boat was docked for fuel. There were no details available whether the fuel may have caused an explosion.

Facebook Video Credit: Wildwood Video Archive

The marina is behind Uries Waterfront Restaurant. The restaurant posted a photo of the boat on Facebook around 1 p.m. with a note saying, “Out back of Urie’s, no injuries as of now. Everyone is ok!”

The Wildwood Police Department said that the firefighters were still on scene as of about 3 p.m. and more details would follow as they become available.

Maddy Vitale

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Breaking news, moment ukraine destroys russian bridges in kursk with us-made weapons.

Dramatic video has captured Ukraine blowing up one of Russia’s pontoon bridges to handicap Moscow’s response to the incursion in Kursk, where Kyiv seeks to keep its foothold.

The Ukrainian military released the footage Wednesday of the pontoon bridge along the Seym River , in Kursk, being blown to bits by a hail of bombs.

“Where do Russian pontoon bridges ‘disappear’ in the Kursk region ? … Operators, together with units of the Defense Forces of Ukraine, are accurately destroying them,” Ukraine’s Special Operations Forces touted in a post on Telegram.

The video goes on to show several other heavy bombardments along shorelines in the area, including strikes against a Russian munitions warehouse and electronic warfare complex.

While the location of other strikes could not be independently verified, the Kremlin has said at least three bridges in Kursk have been decimated by Kyiv in less than a week.

The destruction of the bridges greatly hinders Moscow’s supply lines and ability to deploy its troops to fight off the advancing Ukrainian army.

It also hinders civilian evacuations in the area as more than 120,000 Russians have already fled from Kursk after Kyiv troops took over dozens of towns in the region.

Moscow has also accused Ukraine of conducting the bridge attacks with US-made High Mobility Artillery Rocket Systems (HIMARS) , with Kyiv acknowledging for the first time Wednesday that it was in fact using the American weapons inside Russia.

President Biden had previously greenlit HIMARS to be used against Russia when defending Kharkiv, Ukraine’s second-largest city, which saw some of the most intense fighting of the war in June.

The US and other allies have previously barred Ukraine from conducting long-range missile strikes with their weapons inside Russia.

Washington has yet to respond to the use of HIMARS so deep inside Russia as part of Kyiv’s incursion, by which Ukrainian President Volodymyr Zelensky hopes to establish a “buffer zone.”

With Post wires

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