catamaran naval force 3

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• Sailboat Guide

Piana 37 is a 36 ′ 1 ″ / 11 m catamaran sailboat designed by B. Desray/Naval Force 3 design and built by Naval Force 3 starting in 1992.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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NAVAL FORCE 3 TROPIC 12

• +33 6 09 56 95 95
• www.yachtvillage.net/fr/detail/ICYfrtx5ME6fybR6JgarvA?description=naval-force-3-tropic-12&detail=voilier-occasion
• Lying TOULON, France

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Description

Epoxy plywood construction, sturdy and compact; this boat has a custom interior for optimized life on board. Work required

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Accommodation, contact the seller.

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7 Shipyard Built Boats [Naval Force]

• Post author: David T
• Post published: December 10, 2021
• Post category: Adventure

La Rochelle shipyards have been making multi hull cruise ships, trimarans, catamarans,and mono hulls.

Here are some photos:

Types of sailboats

• Cutter : Similar to a sloop, a cutter has a single mast but carries two or more headsails, such as a staysail and a jib. This configuration allows for better sail trimming and balance in various wind conditions.
• Ketch : A ketch is a two-masted sailboat, with the main mast being the tallest and the mizzen mast shorter, located forward of the rudder post. Ketches are known for their stability and versatility, allowing for a variety of sail combinations.
• Yawl : A yawl is similar to a ketch, but the mizzen mast is located aft of the rudder post. The mizzen sail on a yawl is generally smaller than that on a ketch and is primarily used for balancing the boat rather than propulsion.
• Schooner : A schooner has two or more masts, with the main mast being the shorter and the forward mast (or masts) being taller. Schooners can carry a large amount of sail area, making them well-suited for long-distance cruising and cargo transport.
• Catamaran : A catamaran is a multi-hulled sailboat with two parallel hulls. Catamarans are known for their stability, speed, and shallow draft, which makes them popular for cruising in shallow waters.
• Trimaran : A trimaran is a multi-hulled sailboat with three hulls, one central hull and two smaller outrigger hulls. They are known for their speed and stability, making them popular for racing and fast cruising.
• Catboat : A catboat is a single-masted sailboat with a single large mainsail and no headsail. Catboats are characterized by their wide beam, shallow draft, and simplicity, making them suitable for sailing in shallow waters and coastal areas.

I spent time watching sailboats in the harbor as if it were a painting come to life. The harbor was a bustling canvas of activity, with boats of all sizes and shapes bobbing gently in the water, their masts reaching for the sky like outstretched fingers. I had always been enchanted by the romance of sailing, the idea of being carried by the wind to distant shores.

I found a spot on the weathered wooden pier that stretched out into the water, its planks creaky and salt-worn. From my vantage point, I could see the entire harbor, a natural amphitheater that showcased the elegant dance of the sailboats. The sun was high and bright, casting a glittering path across the water’s surface.

The sailboats, with their crisp white sails unfurled, were a striking contrast against the deep blue of the sea. They ranged in size, from small single-handed dinghies measuring around 8 feet in length to majestic yachts that spanned 30 feet or more, their sleek hulls cutting through the water with ease. Each one was a marvel of design and engineering, with fiberglass hulls and aluminum masts that combined strength with lightness.

As I watched, a regatta began, a friendly competition among the sailors. The sound of the starting horn carried across the water, and suddenly the harbor was alive with movement. The boats jockeyed for position, their sails tilting as the skippers adjusted their rigging to capture the wind. I could see the crews working in perfect harmony, their bodies leaning in unison to counterbalance the tilt of their vessels.

The larger boats had mainsails that looked to be about 400 square feet, billowing like giant wings as they caught the breeze. The smaller boats, more agile and nimble, darted between their larger counterparts, their sails a fraction of the size but no less impressive in their efficiency.

I was mesmerized by the sight of the boats tacking and gybing, their paths crisscrossing as they navigated the invisible lanes of wind on the water. The sound of flapping sails filled the air, punctuated by the occasional shout of a skipper or the creak of a winch. The sailboats seemed to be engaged in a silent ballet, choreographed by the forces of nature.

infographic

Sailboats on the water

Boats are made in shipyard like this:

Jet ski covers are a must to protect from harsh weather and the Sun.

Power boats

• Cabin Cruiser : Larger boats with comfortable accommodations, such as sleeping quarters, a galley, and a head (bathroom). These boats are suitable for overnight trips and extended cruising.
• Center Console : Feature a central helm station, providing 360-degree access around the boat. These boats are popular for fishing, as they offer ample deck space and easy maneuverability.
• Cuddy Cabin : They have a small cabin in the bow, offering limited shelter and sleeping space. These boats are suitable for day cruising, watersports, and overnight trips.
• Deck Boat : Have a wide beam and an open deck area, providing ample seating and space for entertaining. They are suitable for water sports, swimming, and day cruising.
• Fishing Boat : Fishing boats come in various sizes and designs, including bass boats, offshore fishing boats, and flats boats. They typically feature specialized equipment such as rod holders, bait wells, and fish-finding electronics.
• Jet Boat : Are propelled by a jet of water, rather than a propeller. These boats offer quick acceleration, shallow drafts, and impressive maneuverability, making them suitable for watersports like skiing and navigating shallow waters.

The shipyard can refit and repair sailing, motor boats, and yachts.

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Marine at Camp Pendleton who sold ‘ghost guns’ sentenced to 3 years in prison

Christian Ferrari was sentenced in federal court to 37 months in prison following his admission that he sold 22 “ghost guns” to undercover agents without a license. At the time of the sales, Ferrari was an active-duty Marine stationed at Camp Pendleton, Calif. (U.S. Department of Justice)

A Camp Pendleton Marine who illegally sold 22 homemade firearms to undercover agents was sentenced to 37 months in prison, federal officials said.

A federal judged handed down the more than three-year sentence Monday to Christian Ferrari, 23, for selling the nearly two-dozen weapons known as ghost guns across four separate transactions for $23,000. Ghost guns are firearms made by individuals who buy parts and use specialized tools to assemble them into a functional weapon. Unlike firearms made by licensed manufacturers, ghost guns do not have a serial number, making them virtually untraceable.

Ferrari was accused of selling the guns to undercover Bureau of Alcohol, Tobacco, Firearms and Explosives agents between March 13 and May 9, 2023, according to a news release from the U.S. Attorney’s Office for the Southern District of California. At the time, Ferrari was a lance corporal stationed at Camp Pendleton in California.

During one of the transactions, undercover agents told Ferrari that the guns would be taken to Mexico.

“Ferrari responded, ‘All right, perfect,’ and agreed to sell the agents 10 more ghost guns for $10,000,” according to the release.

Ferrari was arrested after the final transaction as part of a joint crime reduction project across San Diego. The project resulted in the seizure of 165 ghost guns and the prosecution of 33 people, including Ferrari.

After his arrest, agents found evidence that Ferrari was manufacturing firearms at a family residence in California. Agents also found a drill press covered in metal shavings consistent with material used to manufacture firearms.

A forensic analysis of Ferrari’s phone revealed numerous conversations related to manufacturing and selling firearms and parts, which included AR-15 style rifles, silencers for firearms and “full auto sears,” which convert AR-15s to fire automatically, according to the release.

“What you did was an enormous danger to the public,” U.S. District Judge Cynthia A. Bashant told Ferrari at the sentencing hearing.

Ferrari joined the Marine Corps in 2020, achieving the rank of lance corporal in 2021. He served as an infantry rifleman.

Ferrari was officially separated April 8, 2024, from the Marine Corps.

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Naval Force 3

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