Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.
- Sailboat Guide
Viking 28 is a 28 ′ 2 ″ / 8.6 m monohull sailboat designed by C&C Design and built by Ontario Yachts between 1968 and 1983.
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)
This was the first of the C&C-designed Viking series built by Ontario Yachts. The VIKING 28 was also built by Anesty Yachts in England and renamed the TRAPPER 28/400. 70 were built along with a number of other C&C designs including the C&C 27, called the TRAPPER 27, and the C&C 35. Although initially offered in kit form, many subsequent Vikings were professionally finished. A number of modifications to the design were made in 1974, and included the addition wider companionway with a pop-top hatch. The mast step area and vee-berth were altered to strengthen the hull. The VIKING 28 was available with either an outboard well, or a 7 hp Vire two-cycle gasoline inboard. Photo courtesy Adam Hunt.
Embed this page on your own website by copying and pasting this code.
- About Sailboat Guide
©2024 Sea Time Tech, LLC
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
- New Sailboats
- Sailboats 21-30ft
- Sailboats 31-35ft
- Sailboats 36-40ft
- Sailboats Over 40ft
- Sailboats Under 21feet
- used_sailboats
- Apps and Computer Programs
- Communications
- Fishfinders
- Handheld Electronics
- Plotters MFDS Rradar
- Wind, Speed & Depth Instruments
- Anchoring Mooring
- Running Rigging
- Sails Canvas
- Standing Rigging
- Diesel Engines
- Off Grid Energy
- Cleaning Waxing
- DIY Projects
- Repair, Tools & Materials
- Spare Parts
- Tools & Gadgets
- Cabin Comfort
- Ventilation
- Footwear Apparel
- Foul Weather Gear
- Mailport & PS Advisor
- Inside Practical Sailor Blog
- Activate My Web Access
- Reset Password
- Customer Service
- Free Newsletter
Dufour 44 Used Boat Review
Blue Jacket 40 Used Boat Review
Catalina 270 vs. The Beneteau First 265 Used Boat Match-Up
Ericson 41 Used Boat Review
How to Create a Bullet-Proof VHF/SSB Backup
Tips From A First “Sail” on the ICW
Tillerpilot Tips and Safety Cautions
Best Crimpers and Strippers for Fixing Marine Electrical Connectors
Solving the Dodger Dilemma
Polyester vs. Nylon Rode
Getting the Most Out of Older Sails
How (Not) to Tie Your Boat to a Dock
Fuel Lift Pump: Easy DIY Diesel Fuel System Diagnostic and Repair
Ensuring Safe Shorepower
Sinking? Check Your Stuffing Box
Why Choose the Wharram Design?
Winterizing: Make It Easy With Checklists
Boat Improvements for the Technically Illiterate
What Do You Do With Old Fiberglass Boats?
Stopping Holding-tank Odors
Giving Bugs the Big Goodbye
Galley Gadgets for the Cruising Sailor
The Rain Catcher’s Guide
Sailing Gear for Kids
What’s the Best Sunscreen?
UV Clothing: Is It Worth the Hype?
Preparing Yourself for Solo Sailing
R. Tucker Thompson Tall Ship Youth Voyage
On Watch: This 60-Year-Old Hinckley Pilot 35 is Also a Working…
On Watch: America’s Cup
On Watch: All Eyes on Europe Sail Racing
Dear Readers
- Sailboat Reviews
C&C 29
Produced in two decidedly different versions, this boat sold well behind the c&c name. the original mk i design was a good light-air boat, but was a handful in heavy air..
The story of C&C Yachts is a boating industry epic. The company was founded when designers George Cuthbertson and George Cassian got together with three boatbuilders in 1969 to capitalize on their joint racing success (Red Jacket, a C&C design built by Erich Bruckman and the first balsa-cored racer ever, won the 1968 SORC). Ian Morch and George Hinterhoeller were the other originals. Few sailboat manufacturers have ever achieved such dominance.
Focusing on the racer/cruiser ideal, a reputation for fairly sophisticated construction, and continued race course success (their Redline 41 Sorcery was the last production SORC winner until the late ’80s), the Canadian aggregation grew to own manufacturing plants in three countries and an estimated 20 percent of the US sailboat market. Along the way it offered up a flotilla of well-accepted dual- purpose designs (plus one or two “anomalies” like the ugly-duckling Mega 30) and brought corporate purpose and polish to the “cottage industry” of producing sailboats.
However, recession in the ’80s, competition from a used-boat market (very much of its own making), unfavorable currency fluctuations, and finally a hostile takeover which removed Cuthbertson, last of the founding principals, sent the giant on a downward spiral. Through ownership changes and even receiverships the name (and curtailed production) limped on. Then a fire in 1994 destroyed 40 molds and three near-complete 51-footers. Finally Fairport Marine, the parent company for Tartan Yachts, bought “the name and a few molds” in 1997. Says Tim Jackett, chief designer and general manager at Tartan, “It was an opportunity to take advantage of C&C’s reputation for performance.” He has since introduced two new C&C boats of his own design. “We’re excited that we’re going to have a separate start for a fleet of our C&C Express 99s at Key West this winter,” Jackett reports. (For a review of the new C&C 99, see Practical Sailor’s June 2003 issue.)
From beginning to end (with the exception of its “pure cruising” Landfall series) C&C put racing potential first. That led to hull forms colored by various rating rules, but it has also meant boats with healthy sail area for their displacements; weight-conscious construction; efficient, controllable rigs, and optimized hydrodynamics. Some, like the 30, 35, the 40, and the most-popular C&C 27 (over 1,000 built) have become “classics” and remained remarkably competitive. Others, the C&C 29 among them, were less popular.
The problem with the 29 may have stemmed from difficulty of replacing winners like the 27 and 30, or from being a “transition” between the CCA archetype and the IOR hull form, or from her departure from the “all-round boat” performance model. Whatever the causes, however, they led to a Mark II version that was, in reality, an entirely different boat. The original 29, introduced in 1976, was 29′ 7″ overall. The new boat, launched in 1983, was over a foot shorter. This wasn’t the result of a chopped transom or a plugged mold: The MK II version was narrower (by 11″), lighter (by 800 lbs.) and carried considerably less sail. Thus, while used boat listings will all say “C&C 29”, the distinction between MK I and MK II is much more important in this case than with most other manufacturers and models.
Design The MK I version of the 29 grew out of a management directive to “make our little boats more cost-effective to build.” The resulting 29 was a lighter (by 500 lbs.) and cheaper (700 lbs. less ballast) alternative to the 30. Says Hank Evans, one-time C&C sales manager, “The thinking was to take some of the volume out of the underbody and put it in the topsides, thus reducing wetted surface… This volume was placed above the waterline in rather extreme topside flare. This produced a beamy and roomy interior above the waterline where the space was used for living and storage.”
The “rather extreme” topside flare noted by Mr. Evans is now fairly commonplace.
The new boat was virtually as “liveable” as the 30 that she was meant to replace. However, Evans remembers, the 29’s hull shape “produced a boat that was ‘tender’ at the dock and initially under sail. As the boat heeled the flare became immersed and the boat stiffened markedly. It is actually hard to get the windows of the MK I wet. Unfortunately, as the boat heeled and immersed all that topside flare, the unwanted drag not only slowed her down, it tended to push the bow to windward. That, combined with the rudder becoming less effective (even coming out of the water at times) at greater angles of heel, caused unintentional and undesired round-ups.”
Evans says that the original 29 was one of Cuthbertson’s least favorite designs. “While the 29 was a great success (over 600 sold) with many one- design fleets, and is a pretty good-looking boat, it left a lot to be desired from a design standpoint. It was very fast and nicely balanced in light and moderate air, but the only way to sail her in a breeze is to ease the traveler all the way down and carry the main almost fully aback. Racer/cruisers are not generally intended to be sailed like dinghies.”
A common modification to the MK I 29, especially in heavy-wind areas like San Francisco Bay, is a C&C-designed, 500-pound “shoe,” permanently affixed to her original keel.
“The 29 MK II is a totally different boat,” says Evans. “The two boats have nothing in common but their names.”
The MK II version relies more on ballast than shape when it comes to stability. Though her lead fin weighs the same 2,700 lbs. as her predecessor’s, it’s thicker, straighter, and attached to a deeper stub. In addition to a ballast/displacement ratio improved from 36 to 40 percent, the new boat thus has a decidedly lower center of gravity. Though she is narrower (9′ 5″ beam vs. 10′ 4″) the MK II offers effective form stability due to relatively hard bilges that are carried well fore and aft of her midpoint. U-shaped sections in her forefoot, smooth waterlines, and a “skeg/bustle” leading into the rudder also give her an underbody that helps to smooth out the “crankiness” that characterized the MK I’s performance in a breeze.
Some of the other differences reflect racer/cruiser evolution over the decade separating their design. The MK II has a larger mainsail which, says chief designer Rob Ball, “makes her more effective in puffy conditions.” Her keel is a retreat from the shark-fin profile evident in the MK I, toward a higher-aspect/more vertical planform. Ball explains: “The theory is that you can keep cutting drag by sweeping the keel aft without affecting lift that much. The tank said the shark fin was the way to go. Our boats have always done well off the wind and in light air, but when the ‘Peterson-style’ (vertical trailing edge) foils came along, they proved very fast upwind in a breeze. We moved in that direction to stay competitive, but we did it before we explored the swept-back keel as much as we wanted. Still, there’s no doubting that you can make a straight-edged keel thicker and thus have room for more ballast.”
The MK II’s rudder is also deeper and has a higher aspect ratio than the less effective blade on the first 29.
C & C yachts have been distinguished by a sharp, aggressive, and functional aesthetic from the outset. The two 29s are good examples of the “look of speed” that was a C & C hallmark. But there are subtle differences: With a longer bow overhang, boxier transom, and “scattered” window treatment, the first 29 clearly dates from an earlier time. With a curvier sheer and higher bow, a jaunty counter, and house windows streamlined for effect, the MK II looks much more modern.
Construction Both C&C 29s were built of solid fiberglass with balsa-cored decks. Part of C&C’s pioneering (in addition to balsa coring) was in the use of fiberglass “pans” or structural grids built into the boat to both locate furniture and help distribute working loads. Says Rob Ball, “We’ve used many different forms of grid. We began with a combination of fiberglass with wooden furniture, went more toward an all-glass structure, went back to wood due to market pressure, and finally arrived at inserting the grid and taping and foaming it in place while the hull is still in the mold. Grids, in any case, demand a lot of precision in both molding and assembly.”
The two 29s have very similar grid systems. They extend above the waterline to seat level. Additional furniture is built in and bulkheads are taped and tabbed in place. These bonds, though they may be hidden behind furniture or beneath a headliner, are critical. Checking them should be a first priority with any used boat survey. One owner of a 1979 boat, in fact, reported separation between his hull and the bulkhead supporting a chainplate.
Over the years, laminates have gotten thinner as builders have come to trust more in the properties of their materials. Still, in 1982 the MK II exemplified the sort of robust lay-up that could make interior reinforcing grids seem almost irrelevant: Behind the gelcoat are two 1.5-oz. layers of chopped matt. That is backed by Fabmat, a bi-axial blend of 1.8- and 1.0-oz. matt. Over the “impact area” of the forward third of the boat are arrayed 4-mm plies of Coremat. Additional 1.5- oz plies and another layer of Fabmat are added in the way of the keel, and further layers of Fabmat are used to counteract local loads. Enough MK I owners reported blistering to suggest that it was a significant problem with the older boat, though none reported the pox as catastrophic. A single owner reported “just a few” blisters with the MK II.
Decks on both boats were also built in much the same way. They were cored with 1/2″ end-grain balsa. In areas where hardware is attached, the coring was 1/2″ plywood. A flange of solid glass 6″ wide encircles the deck molding and facilitates the hull/deck attachment. That is done by placing the deck on an inward-turning flange of the hull, sealing the joint and inserting a vinyl rubrail, then bolting the two parts together through a full-length slotted aluminum toerail—another C&C hallmark.
A problem with the MK I has been the mast step. It’s a wooden block, and many owners report having to replace it due to rot.
C&C glasswork has generally been rated above average, but owners of both models have registered complaints about gelcoat crazing and small cracks on the cockpit sole and in the area of winches.
Accommodations Though they have been cruised widely, neither 29 approaches “liveaboard” standards of comfort. The MK I layout is straightforward—a quarterberth and nav station to port, galley to starboard, saloon amidships, a full-width head, and a forecabin that, according to one owner, is “somewhat cave-like.”
Most owners find their boats ideal for a couple and say that space becomes more of a problem with each additional shipmate. Recognizing the limits of a boat under 30 feet and one designed primarily for racing, the majority of early 29 sailors say things like, “We love our boats and cruising in them.”
Still, there are various specific complaints: “The table’s in the way.” “The guy who designed the head door obviously never had to use it.” “What the hell do you need the sink forward for?” “The berths are too short and the overhead is too low.” “There’s no hanging locker.” “The ports leak.” “The deck leaks.” “She needs more tankage.”
The shorter, narrower MK II has no nav station (though a clever swing- down cutting board might be a suitable substitute). The galley is cramped by the companionway stairs, but a bulkhead table opens up the saloon, and there is a hanging locker.) Ventilation (via an overhead port just aft of the mast) is improved, too. Siting the forehatch in the forward slope of the house also improves airflow.
The early 29s were powered by Atomic-4 gasoline engines. The switch to diesel came well into the MK I’s production run. Even using the tidy Yanmar 2 GM, space in the engine compartment is tight and access inconvenient on both boats. While sound insulation appears adequate one owner calls his engine a “clunking, vibrating annoyance, to be used as little as possible.”
The combination of a balanced spade rudder, fin keel, and standard two-bladed prop gets poor reviews for backing with control, and several owners complained that similar-sized auxiliaries were “much faster than we are under power.”
Conclusions In summing up his feelings for his 29 (MK I) Hank Evans says, “Quality and design pay over time.” That’s a catchy mantra, and many owners indeed report that their ancient 29s are “faster, better-looking, and more admired” than more modern competitors.
It’s certainly true that, amidst a host of very similar-looking boats churned out by many builders during the high-volume production years of a couple of decades ago, both the MKI and MK II versions of the C&C 29 stood out from the crowd. They didn’t, in our opinion, stand out entirely on their own design merits, but partially because of the reputation established and trails blazed by the C&C company. Even after all these years, that name commands respect—Tim Jackett and his fellows at Fairport/Tartan were wise to acquire it.
Between the two different versions, more than 1,000 C&C 29s were sold. That’s a success story for any production sailboat.
At press-time, there are 31 listed at www.yachtworld.com, in both versions, by brokers countrywide. Asking prices vary widely, between about $15,000 and $30,000. There doesn’t seem to be a strong correlation between version and price, or even engine type, although listings show several boats that have been converted from the Atomic-4 to Yanmar or Universal diesels.
There are several excellent websites developed by and for C&C owners. Try www.cnc-owners.com and www.cncphotoalbum.com , and from there follow links to other devoted sites.
Also With This Article “C&C 29 Owners’ Comments.”
RELATED ARTICLES MORE FROM AUTHOR
Leave a reply cancel reply.
Log in to leave a comment
Latest Videos
The Performance Sailboat from Island Packet: Blue Jacket 40 Boat Review
Top 3 Winter Boat HACKS!
Cabo Rico 34 Boat Review
Super Shallow Draft Sailboat: The Leeboard Sharpie
Latest sailboat review.
- Privacy Policy
- Do Not Sell My Personal Information
- Online Account Activation
- Privacy Manager
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
IMAGES
VIDEO
COMMENTS
This was the first of the C&C-designed Viking series built by Ontario Yachts. The VIKING 28 was also built by Anesty Yachts in England and renamed the TRAPPER 28/400. 70 were built along with a number of other C&C designs including the C&C 27, called the TRAPPER 27, and the C&C 35. Although initially offered in kit form, many subsequent Vikings ...
The Newport 28 was one of the longer-lived small production cruising boats, having been in production from 1974 through 1987. Almost 1,000 of the C&C-designed boats were built by Capital Yachts of Harbor City, California. There is a strong family resemblance between the Newport 28 and other C&C designs of the same period.
C&C Yachts was formed in 1969, when Canadian boat builders Belleville Marine Yard, Hinterhoeller Ltd. and Bruckmann Manufacturing joined forces with the design firm of Cuthbertson & Cassian Ltd. New capital was raised through a stock offering on the Toronto Stock Exchange. Although Ian Morch of Belleville Marine Yard was the first president, he resigned in 1971 taking the Belleville assets ...
C&C boats ranged in size from as small as 21 ft (6.4 m) to as large as 67 ft (20.4 m). C&C also produced a line of bluewater cruising boats in the 35 ft (10.7 m) to 48 ft (14.6 m) range under its Landfall brand. ... Anstey Yachts built the Trapper 27, 28, and 35 (which was a C&C 35). C&C designed several yachts for OY Baltic in Finland and the ...
1972 28' C&C Viking 28 sailboat for sale in Michigan. mast, boom, shrouds and spinnaker pole Teak flooring Vire 7hp Newer cushions
Viking 28, sailing with spinnaker flying. The Viking 28 was the first boat designed by Cuthbertson & Cassian to be produced by Ontario Yachts. [ 1][ 3] The Viking 28 is a small recreational keelboat, built predominantly of fiberglass, with wood trim. It has a masthead sloop rig, an internally-mounted spade-type rudder and a fixed fin keel.
Viking 28 is a 28′ 2″ / 8.6 m monohull sailboat designed by C&C Design and built by Ontario Yachts between 1968 and 1983. Great choice! Your favorites are temporarily saved for this session. ... The VIKING 28 was also built by Anesty Yachts in England and renamed the TRAPPER 28/400. 70 were built along with a number of other C&C designs ...
Originally published in Canadian Yachting's Fall 1995 issue. Specifications. LOA 28 ft. 2 in. Beam 8 ft. 5 in. Draft 4 ft. 6 in. Displacement 4,755 lbs. "We wanted a good-looking, smart-sailing boat with berths for four," said George Cuthbertson, the leader of the C&C team that designed the Viking 28. "But, we made a conscious decision not to ...
Sailboat Added 28-Jun-2017 More Details: C&C 1974 Mark II: Length: 35' Beam: 10' Draft: 5.5' Year: 1974: Type: racer/cruiser: Hull: fiberglass monohull: Engine: ... 29' C&C 29 Mark 2 Nyack, New York Asking $12,300. 34' Hunter 34 Muskegon, Michigan Asking $28,500. 28' Pearson 28 Sea Cliff, New York Asking $6,800.
The Viking was the first of the C&C-designed Viking series built by Ontario Yachts in Oakville, Ontario. Later, this shop added the Viking 22, 33 and a modified 33 renamed as the Viking 34. Interestingly, in the early '70s the Viking 28 made its way overseas when it was built by Anesty Yachts in England and renamed the Trapper 28. Seventy of ...
J Boats J/28: Length: 28' Beam: 10' Draft: 5' Year: 1987: Type: racer/cruiser: Hull: fiberglass monohull: Engine: 1 diesel inboard; Location: Melbourne, Florida; Asking: ... 29' C&C 29 Mark 2 Nyack, New York Asking $12,300. 28' Pearson 28 Sea Cliff, New York Asking $6,800. 34' Hunter 34 Muskegon, Michigan Asking $28,500. 40' Freedom 40/40
C&C is a boat builder in the marine industry that offers boats for sale spanning different sizes on Boat Trader, with the smallest current boat listed at 16 feet in length, to the longest vessel measuring in at 60 feet, and an average length of 29 feet. Boat Trader currently has 72 C&C boats for sale, including 18 new vessels and 54 used boats ...
C&C 27 Boat Review With hundreds still sailing, the 27 is an affordable option in cruiser-racer market. By. Darrell Nicholson - ... The later models rigs were masthead sloops with a mainsail luff length (P) of 28 feet, 6 inches and a foot length (E) of 10 feet, 6 inches; this gives an aspect ratio of .36. Rig height on the Mark I was 33 feet ...
Sailboats 21-30ft; used_sailboats; C&C 29 Produced in two decidedly different versions, this boat sold well behind the C&C name. The original MK I design was a good light-air boat, but was a handful in heavy air. By. Darrell Nicholson - Published: January 29, 2004 Updated: November 6, 2019. 0. Facebook.
The C&C 27 (MK I-IV) was one of C&C Yachts most successful model. Almost 1000 were built over a period of nearly 10 years. (Until 1982) Mark I (hulls 1-167) (shown here) Mark II (168-452), produced from 1972 to 1974. Same dimensions as Mark I, except for a taller rig though with same sail area and other minor changes.
2025 B-Yachts Brenta 34. Find 28 C&C 36 boats for sale near you, including boat prices, photos, and more. Locate C&C boat dealers and find your boat at Boat Trader!
Sailboat Added 28-Aug-2018 More Details: C&C 33: Length: 33' Beam: 10' Draft: 6' Year: 1986: Type: cruiser: Hull: fiberglass monohull: Engine: 1 diesel inboard; ... 29' C&C 29 Mark 2 Nyack, New York Asking $12,300. 28' Pearson 28 Sea Cliff, New York Asking $6,800. 34' Hunter 34 Muskegon, Michigan Asking $28,500. 40' Freedom 40/40
A man had to be treated by paramedics after a motorboat crashed into a breakwater. An air ambulance landed at Mount Batten this afternoon after the boat dramatically ran aground just metres from ...
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.
When Hayden Panettiere's younger brother died unexpectedly of an undiagnosed heart condition last year, the actor said it was like losing a part of herself.
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.
C&C Yachts: Designer: C&C: Accomodations. Water: 6 gals / 23 L: Sailboat Calculations Definitions ... 99.88 ft² / 9.28 m² ... Like the LWL, it will vary with the weights of fuel, water, stores and equipment. A boat's actual draft is usually somewhat more than the original designed or advertised draft. For boats with adjustable keels ...