bb11 sailboat

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• Sailboat Guide

BB11 is a 20 ′ 3 ″ / 6.2 m monohull sailboat designed by Borge Bringsvaerd and built by Borge Bringsvaerd (NOR) between 1956 and 1968.

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)

Sail Areas: Main 7.60m2/ 82 Sq.Ft. Jib 3.60m2/ 39 Sq.Ft. Total 11.2ms/ 121 Sq.Ft. Built in Norway but effectively promoted and exported around the world during the 1960’s. An active Norwegian class association has continued into the 21st century.

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The Bb11 is a 20.28ft fractional sloop designed by Borge Bringsvaerd and built in wood - carvel (mahogany on oak) between 1956 and 1968.

1300 units have been built..

The Bb11 is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.

Bb11 for sale elsewhere on the web:

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The Little Norwegian Sailboat

The Norwegian sailboat BB1 is 20 feet long made of mahogany. The very first boat was launched on 1 January 1956 and was produced in series until 1968. It was built in excess of 1300 of the little Norwegian sailboat BB1s and today there are about 350 left in Norway. The rest were exported to USA, Canada, Asia, Africa and most countries in Europe. Borge Bringsværd from Arendal had the idea for the boat and built it at his yard outside Drøbak . He collaborated with jeweler Knut Larsen on the construction.

Related: The Norwegian Tall Ship Statsraad Lehmkuhl.

Børge Bringsværd Børge Bringsværd built rowboats, kayaks, motorboats and sailboats. He also built a boat for the famous Norwegian painter Edvard Munch. The first BB1 he built alone. The logo BB11 was embroiderd on the sail.  BB is Børge’s initials and 11 denotes the eleven square meters sail. The price was about $ 550 and the serial production could begin.

You may also like: Beaches and Picturesque Seaside Towns in Southern Norway

BB1 has been floating for more than 60 years. It has survived rough sea and stiff gale, rot and rain and even plastic boats. In 2006 it was named the all-time Norwegian sailboat by the magazine Seilmagasinet .

The Little Norwegian Sailboat The BB1s are good sailers, stable and handle wind well. BB1 is a nice looking small classic looking a little like Sunbeams or Brown Boats in England. BB1 was used as sail-trainer at Haakonsvern – the Naval academy. The long keel and high freeboard make it directionally stable and seaworthy.

The last produced BB1 was launched in 1968. You can see the sailboat’s data here .

The Little Norwegian Sailboat, written by Tor Kjolberg

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ARCHIVE LISTINGS ARE PROVIDED FOR INFORMATION AND RESEARCH PURPOSES ONLY.

1957 BB11 One Design (OD) & Trailer - £4,800

Status : SOLD

Lying : Norfolk - Viewing strictly by appointment through Topsail

(Please scroll down to the 'Images' section below for more photos.)

General Specification

Builder : Borge Bringsvaerd, Drobak, Norway LOA : 6.18m (20ft 3in) LWL : 4.1m (13ft 5in) Beam : 1.78m (5ft 10in) Draft : 0.98m (3ft 3in) Ballast : 275kg Keel : Fin

Construction

• Wood carvel construction
• 11/16th inch mahogany (edge glued, screwed and dowelled) on bent oak frames
• Oak keel and stem
• Spruce and pine knees, deck beams and carlins
• Teak decks (new 2008)
• Mahogany cockpit coamings, breakwater and rubbing strakes
• Cast iron ballast keel
• Gunmetal fastenings
• Mahogany cleats
• Interior fit-out in mahogany
• Freeboard : 0.54m (1ft 9in)
• Keel bolts replaced 2013
• Lifting eyes replaced 2013
• No recent survey
• Barn stored when ashore

Rigging & Sails

• Bermudan sloop rig
• Mast and boom in pine with stainless steel fittings
• Stainless steel tabernacle
• Stainless steel standing rigging
• All standing and running rigging replaced since 2011
• Mainsail (7.60 sq m / 82 sq ft)
• Jib (3.60 sq m / 39 sq ft)
• Total sail area (11.2 sq m / 121 sq ft)
• Sails used for only four seasons and in very good condition

Mechanical & Electrical

• 10hp (approximately) Kohler petrol inboard engine (serviced 2016)
• Bespoke side mounted, stainless steel outboard bracket (brand new)
• 12V battery
• Tiller steering
• Single axle road trailer/launching trolley (good condition, recent new tyres and lighting board)
• Lockable lid that fits over cockpit
• Seat cushions
• Boom crutch
• Various mooring lines
• 4 x new quality fenders (never used)
• Boat Safety Scheme certificate (new)

Purchased by the current owner some 10 years ago, this BB11 One Design is now for sale due to the purchase of a larger sea going vessel. She has been unused the past two seasons, but was previously sailed on the Norfolk Broads. She is understood to have been maintained to a high standard throughout, and is currently barn stored on her trailer at her owner's home.

General Notes

(as provided by the builder in promotional material)

The BB11 is a strict One Design, conceived in 1956 as a high quality. moderately priced yacht, equally suited both for day cruising and class racing. As a 'thoroughbred' racing boat, the BB11 is more economical to maintain than the majority of keel boat classes, and appeals particularly to the dinghy sailor who wants to continue class racing with more comfort and less expenditure of effort.

The BB11 is fast and dry, having an easily driven and particularly seaworthy hull form. Built in buoyancy is incorporated in the hull to ensure maximum safety under all conditions. the all-up weight of the BB11 is under three quarters of a ton and can easily be trailed by road.

The BB11 is designed and built exclusively by Borge Bringsvaerd, Drobak, Norway. The builder has combined the best traditions of Norwegian boat building with modern 'flow' production systems to create a quality product of outstanding value.

There are BB11 Fleets in more than 10 countries, and several hundred yachts have been built and are racing throughout the world. The strict One Design nature of the class is ensured by rigid and up to date rules controlled by the International BB11 Association, and the fact that all boats are constructed by one builder ensures that as far as possible hulls are identical. The class has been granted National status by the Royal Norwegian Yacht Club.

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DISCLAIMER: Topsail Marine Yacht Brokers is acting as brokers (or in the case of classified adverts, advertising medium) only and unless stated otherwise the vendor is not selling in the course of business. Whilst every care has been taken in their preparation, the correctness of particulars is not guaranteed and they are intended as a guide only. Prospective purchasers are strongly advised to check all particulars and where appropriate employ an independent qualified agent to carry out a survey and/or sea/river trial. Vessels are offered subject to prior sale, amendment or withdrawal without notice.

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1851 Elaine #UK12 503T 16041706

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The BB11, A norwegian classical mahognyboat

• Thread starter runars
• Start date 16 Oct 2005
• 16 Oct 2005

Hi! I`m seeking owners of BB11. The norwegian mahognyboat from 1956. It was produced 1200 of them. 350 stayed in norway. Do you have one? Please contact: Runar Borge [email protected] or visit The norwegian BB11 club at : www.bb11-klubben.com  

• 17 Oct 2005

ValleyForge

I used to own UK no. 32 from 1976 - 1986 ish. I would buy her back if I could !  

• 18 Oct 2005

nordic_ranger

Active member.

Hi Runar I have a friend who has a BB11 for sale at present. If you or any other formite is interested please PM me and I will e-mail details to you. Regards Jim.  

• 27 Oct 2005

I have, rather unsurprisingly, Skipjack K8 in Tollesbury, Essex. The BB11 (well, mine!) made it to no 132 or something in the last Classic Boat poll of the best 200 boats/classes of all time. There was another BB11 on the Blackwater recently, and I believe there was one for sale in the UK that looked very well rebuilt recently (although I thought the coffee grinders were a bit excessive for a 40 square foot headsail!). David Lynch has a good site detailing the rebuilding of a BB11 ( http://www.bluedome.co.uk/BB11/ ). I talked to Jack Chippendale, and he recalled that they imported 'about thirty' BB11s into the UK in the early sixties. I think it was the 1960 London Boat Show that they had a BB11 on their stand. Beatiful boat, beautiful to sail.  

• 31 Oct 2005

Here's a bit of information on 'Janye' UK32 which I owned from 1976 - 1986. Bought on Coniston, & previously kept at Piel Island (Barrow in Furness), she was then in early old age & suffering a bit. Even had drying legs. I re-decked her, had her re-ribbed (at Crossfields yard, Arnside - there was an article in one of the yachting mags at the time - I still have a copy) put on new sails (jeckells), centre main sheet & some little Gibb self tailing winches (purchased from the boat show for £30 ! A bit OTT but great when single handing). Black hull, white deck, mahogany brightwork, white bottom. the bees knees, a pure delight to sail with classic keelboat handling (So much nicer than modern flat bottomed fin jobs if not quite as fast) I kept her on Windermere for 10 years, then sold her when small babies demanded things like potties & things. I sold her to a gentleman from Essex. I wonder where she is now ? Said babies are all grown up & want her back !  

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P eople don't find boats - boats find people .

E d Bremners statement is proving to be true, another boat has found me! Yes, I know, I did say that I would never restore another boat. But just look at her, Mahogany hull, Oak frames, Iron keel and lots of original fittings including the makers plate. So it looks as though we have the BlueDome winter project well and truly sorted. You will be able to follow our trials and tribulations online as we work to restore the BB to her former beauty progresses. The Story so far....from Norway to Cumbria. A sorry looking boat - a gallery of BB images.

BB11 links and information

BB11 specification, dimensions and builders notes

Stage 1 - BB11 takes to the road - or 'how to move a 3/4 Ton wreck!'

Stage 2 - Stripping and Sanding

Stage 3 - Steam bending Oak ribs

Stage 4 - Keep right on to the end of the boat!

Stage 5 - A plug cutter, a plug cutter, my kingdom for a plug cutter!

Stage 6 - Progress at last!

Stage 7 - It was New Years Eve at the boatyard...

Stage 8 - What a difference a deck makes Stage 9 - Fitting some of the bits and pieces

Stage 10 - Lift off! Getting the BB off her trailer

Stage 11 - Don't rock the cradle

Stage 12 - First varnish on the topsides

I f you have any information about BB11's in the UK or have done a BB restoration please get in touch. Best Wishes David Lynch

A few light hearted observations about wooden boat restoration projects

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Search our catalog, go direct, enter a boat reference, borge bringsvaerd bb 11, fast dry keel boat, £ 0 sold / unavailable.

• Boat REF#  ·  232105
• Length  ·  5.99m
• Year  ·  1965
• Construction  ·  Wood
• Underwater profile  ·  Long Keel
• Lying  ·  Falmouth

Boatshed Cornwall

This boat is off the market but here are some boats that are still for sale.

• Specification
• Additional Information

Extra Details

The boat does not come with an engine but an outboard can be mounted on the side-mounted outboard bracket.

Sloop rigged Wood spars () with Stainless Steel standing rigging ()

Mast and Boom are pine with stanless steel fittings

Construction

Her hull is built of Mahogany with oak frames, an oak keel with cast iron ballast.

1 anchors 3.00m of chain

Broker's Comments

The BB11 is a strict One Design, conceived in 1956 as a high quality. moderately priced yacht, equally suited both for day cruising and class racing. As a 'thoroughbred' racing boat, the BB11 is more economical to maintain than the majority of keel boat classes, and appeals particularly to the dinghy sailor who wants to continue class racing with more comfort and less expenditure of effort.

The BB11 is fast and dry, having an easily driven and particularly seaworthy hull form. Built in buoyancy is incorporated in the hull to ensure maximum safety under all conditions. the all-up weight of the BB11 is under three quarters of a ton and can easily be trailed by road.

The BB11 is designed and built exclusively by Borge Bringsvaerd, Drobak, Norway. The builder has combined the best traditions of Norwegian boat building with modern 'flow' production systems to create a quality product of outstanding value.

This boat has benefitted from a full overhaul in 2016 including a hull re-paint, some replacement frame sections and a replacement mast-step. The price includes a fully galvanised cradle for lay-up ashore.

These boat details are subject to contract. Note: Offers on the asking price may be considered.

Please note this comments section is public . Please do not post your personal details here. Please read our commenting guidelines before posting.

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My BB11 Introduction

My intro into the BB11 boat environment started back in 2000 when my son attended a locally organized sailing course. This event, in due course, lead to me selling my 34ft Janeau sailing boat & replacing it with a 20ft wooden dingy. Having been convinced that the BB11 boat was the way forward, I travelled to Tønsberg and purchased my own BB11 named SIMA.

Once back in Arendal the boat was placed alongside others looking in a similar/worse state of restoration. As I had been advised that my boat was in a reasonable condition with little work required I was expecting to just clean off the dust and wait for the launch day! How wrong can one be?? My fellow restorers politely pointed out that a few items needed repair or replacing. For somebody who had never been involved in wooden boats or restoration work this sounded a daunting task. Words like epoxy, sykoflex and steam bending seemed like words from another planet. However, I was soon to find out that for every problem that presented itself there was always somebody who was available with both advice and help.

The more the work progressed the more my enjoyment grew. Coupled alongside this was the ever increasing number of new friends. It was not long before the eagerly awaited Thursday evening was increased to include weekend working.

Throughout the two year period spent restoring the boat there were many, many “events” that will always remind me of the period. I remember very clearly, when the day of varnishing arrived. Having never varnished before, when the day arrived, and after a sleepless night, I left my house at 06.00 in the morning feeling a little apprehensive of the task ahead.

The result however was a good effort and I was very proud of my little wooden boat when it made its way out of the hall towards sea setting. As launching of the boats started it did not take me long to realize, and learn about, leaking wooden planks, automatic water pumps and fully charged batteries and how much these simple items would play, not just this first time but in all future sea settings. However after strawberries and champagne my pride and joy was sitting on the water in all her glory.

Within a few days, the new sails were unfurled and I was straight into the weekly regattas. Having completed regattas whilst working in Abu Dhabi for two years, the sailing was not a problem – although I am sure, some of my crew may have thought different at times! Participating in my first NM provided an opportunity to meet new friends and sail against different competitors.

Having made it through my summer of sailing, the boat was returned to the hall for winter work/repairs. This period over winter provided the opportunity to meet up on a regular basis for “sailing talk” and have a cup of coffee together as well as working on the boats. This coffee “pause” was to become a stable item in the clubs growth in the years to come. The boat launching was a video of people frantically attempting last minute varnishing, antifouling and checks to batteries and pumps. Once again all eyes were fixed on the boats interior, watching the water creep (or in some cases rush) in. For most, it was over and under control in a short period, but for some it was shoes and socks off and in with your bucket, spending time at frantic bail-out together with a few anxious hours on standby watch.

During my 14 years as a member of the BB11 environment, there has been only minor changes to the BB11 way of life. But for me, what is lasting, is the atmosphere & friendship that keeps us together while we play in our little wooden boats.

Duncan Hubbard

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Jedem Eigner einer BB17 soll hier zukünftig die Möglichkeit geboten werden sein Boot in einem Register erfassen zu lassen, sowie weitere Informationen zu sich bzw. Fotos und Erfahrungen weiterzugeben.

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(Letzter aktueller Stand 21.07.2010/ Relaunch 01.01.2020).

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