bb10 sailboat data

The Bb 10 is a 32.8ft fractional sloop designed by Børresen Brothers and built in fiberglass by Børresen Bådebyggeri since 1977.

150 units have been built..

The Bb 10 is a light sailboat which is a good performer. It is very stable / stiff and has an excellent righting capability if capsized. It is best suited as a day-boat.

Bb 10 for sale elsewhere on the web:

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• Sailboat Guide

BB-10 is a 32 ′ 9 ″ / 10 m monohull sailboat designed by Børresen Brothers and built by Børresen Bådebyggeri starting in 1977.

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)

Spin. area: 63 m2/678 sq ft

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1983 Borresen BB10 fractional rig sloop

$13,500.

Totally charming and very simple diesel powered Danish-built day sailer, same family almost since new. Sassafras spent most of her life back East (Annapolis and Vermont), was moved to CA in 2016 and is being offered for sale for the first time since. The BB looks like a classic wood sailboat from the 1920s but it's a fiberglass hull with a modern underbody so you have the best of moth worlds (and note that it has a ballast-to-displacement ratio of 54% so is very sfiff which is what you want on the Bay!).

Single cylinder 10hp Yanmar diesel just serviced (and most little day sailers are powered by outboards!), roller furler head sail with 95% jib, sails and teak decks in very good shape; Sassafra s is the only BB10 for sale in the U.S. at present and must be seen to be appreciated.

Price just significantly reduced and offers encouraged.

Specifications

Additional info, basic boat info, engines / speed.

• Make: Yanmar
• Model: 1GM10
• Fuel: Diesel
• Engine Power: 10hp
• Type: Inboard
• Propeller Type: 2 BladeBronze
• Engine Location: Center
• Drive Type: Direct

Aluminum single spreader mast and boom with North Sails dacron main sail, 95% jib on Harken roller furler, also a 130%. 3/4 oz. tri radial spinnaker (but no pole or gear), all sails serviceable. Topping lift, mainsheet, rigid boomvang, five Anderson Scandanavia single speed standard winches.

Single Group 27 battery (2021) with portable battery charger.

VHF radio, cockpit bulkhead mounted magnetic compass (2021).

A Soling with the cabin house of a Dragon? The BB 10 Meter is the creation of Borge Borreson and his son, Anders, who designed and originally built the boat in Denmark. In the past, the Borresons built Solings ( one of which won the gold medal in the 1980 Olympics) and Dragons, and the exposure to the bracing classes made the younger Borreson keen enough to obtain his degree in naval architecture.Then they had the idea of producing a boat of their own design, a performance-oriented family racer that was easy to sail. This boat is a natural progression for men who have been producing Dragons and Solings, and they have managed to keep that aesthetic appeal in their new creation.

Many of you have seen and some have had the pleasure of sailing a Soling, so it may be helpful to use the Olympic keelboat as a comparison:

First, enlarge a Soling about 20 per cent (enlarging a boat is not this straightforward in yacht design, but this is just an exercise). This boat now has the same freeboard and length as the BB-10, but the Borresons have produced a yacht with less beam. And you thought that a blown-up Soling looked slim. The sailing stability of a boat is always an interesting characteristic to study, and from the designer's point of view one of the most challenging to tune to perfection.

The BB-10 has a lot of ballast (54 per cent of its weight is lead) which will help offset its very narrow beam. Our overgrown Soling has about the same percentage of ballast, and you have to perform all kinds of outrageous hiking maneuvers to keep it sailing upwind at peak performance. Mom and Dad don't have the knees for that kind of stuff anymore. So how does the BB-10 do it? Two important factors: (1) It has enough extra displacement to give the hull a greater righting moment, and (2) it has a smaller sail-plan.

The sail-plan arrangement is very sensible. For those super light-air days you can pull out the big genoa, but often the little lapper will be all that is required to scoot around the lake, and you won't be, overpowered. To get you into those shallow spots for lunch, Borreson has kept the draft down to four feet, 10 inches.

The resulting keel's aspect ratio is a little low for efficiency, but has lots of area. The sailing characteristics resulting from combining that keel with the narrow hull should be minimal leeway and very little chance of stalling the keel-even coming out of one of those tacks when your crew, in the heat of the moment, has wrapped the sheet counterclockwise around the winch.

Their brochure states that "standing headroom is only four feet, nine inches, though sitting headroom is ample." I'm not sure that "standing headroom" is the correct term here, but we will let the figures speak for themselves. The interior is not meant to be lush. It's a bit like camping in a fiberglass tent. There are settee berths for sitting or snoozing and a galley module that pulls out from under the cockpit when required. Just forward of the mast are several substantial built-in lockers, and forward of those a large V berth.

With more than a hundred boats sailing in Europe, this design is not new. According to Bob Scharf of Scandinavian Yachts in Annapolis, Maryland, the bid to expand the BB- lO's market began with a brief period of production in the United States (about 20 were built) but they are now moving their molds to Whitby Boat Works in Ontario.

The Canadian dollar, combined with Whitby's quality construction, makes the move look attractive, and if all goes as planned, the first boat off the line should be slipping into the water just about now.

Steve Killing, Canadian Yachting, July 1984

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         Loa.:  10.00m

         Beam: 2,30m

Boats for Sale

33' borresen bb10 racers.

33' Borresen BB10 '82 "Pisces"

Here is your own mini meter boat, beautifully restored by Craig Smith at Elkhorn Composites. Wonderful deep cockpit and it even has underdeck handles for the cockpit winches. Very nice boat to sail. Inboard power. One year Santa Cruz Slip possible.

• Specifications
• Description

Perfectly varnished contour cockpit seats with traveler and mainsheet right by the helm. Step below and the 6� 7� settees on each side are angled for sailing. The back cushions pull down to make the settees into level berths. V berth forward (without cushions). Teak table can be mounted in the cabin. Teak lockers and stowage under seats, forward, and aft under cockpit seats.

Raymarine depth and speed

Suunto compass

Standard Horizon ââ?¬Å?Explorer Seriesââ?¬ï¿½ GX 1600 VHF AM/FM/CD player with cell phone jack

Ships clock

Ships ensign

Battery monitor

ProSport battery charger

Plow-type anchor with chain and rode

Cockpit cover

Sunbrella covered cushions for cockpit seats

Boarding ladder

Antiskid decking replaced 2013

Self-bailing cockpit with bailers when underway

Cockpit teak seats and specially designed seat for helm

All lines lead to cockpit

Spinnaker well in foredeck

(1) Dorade air vent when not underway

(2) Lazarette hatches access below deck aft of cockpit

Tiller with extension

Actual LOA: 32� 10�

Fiberglass sandwich with balsam core in the deck, cabin, and hull

All Andersen winches

Fractional sloop rig

Standing rigging replaced in 2013

North Dacron fully battened main, jib, and Genoa

Extra mainsail

Spinnaker (with turtle)

Gennaker (with sock)

Spinnaker and whisker poles

Electric bilge pump with manual and auto switch replaced 2013

Manual bilge pump

Tiller steering

(2) Mustang and (1) West Marine Type V Floatation/Harness Vests with tethers

All seller�s personal effects on board are excluded from the sale of this vessel.

The BB10 is constructed of fiberglass sandwich with balsam core in the deck, cabin, and hull. The original teak deck was removed when the boat was upgraded in 2011-13. The spade rudder and low draft keel combined with the long and narrow lines of the BB 10 give it the appearance of a much larger boat. But with a displacement of 4,956 pounds it is still trailerable. The BB10 has a high aspect rig, designed to carry a main, spinnaker, jib, genoa, or gennaker. Reefing can be done quickly and by one person. The long cockpit and comfortably fit a crew of four plus the helms-person.

The BB10 is for the sailing purist. This boat was designed with a disregard for ratings and attention to speed. Under the PHRF, for example, the BB10 is rated very high at 120. This reflects the yacht�s spectacular performance potential. Speeds of over 15 knots downwind have been recorded frequently. It is for those who enjoy most the thrill of moving through the water efficiently, using only the wind. Acceleration is incredible and it sails with astonishing speed, a minimum of fuss and a great sense of security. The BB10 is a head turner and other vessels alter course to come near and ask questions.

This is a two-owner boat, one of about 150 built. An architect in San Francisco and his sailing partner purchased her new in 1982. The current owner purchased the boat in 2011 and undertook over $30,000 repairs and upgrades. She was re-launched in 2013 and has been used for day sailing with family and friends around Santa Cruz. The current owner has serviced the boat regularly and maintained at a high level, including repair of blisters below the water line, stripping the bottom paint and applying two layers of epoxy barrier plus two coats of Trinidad 3, replacing the prop shaft and cutlass bearing, and other maintenance in 2019.

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