International 10 Sq.m. Sailing Canoe
For over one hundred years racing sailing canoes has fascinated, exasperated, intrigued and even infuriated some of the world’s great sailors. The voyage includes the earliest known recorded planing boats, the second longest standing international sailing event, and the ability to go upwind like a stiletto through butter.
The key features of the Canoe are its relatively small but highly efficient rig, its long, slim and lightweight hull, and of course the sliding seat.
How do you sum up the appeal of the International 10 Square Metre Sailing Canoe in four short paragraphs? "The dry fly of sailing"? (Uffa Fox) "one of the most interesting things that God let man make"? ( L Francis Herreshof) "Oh [deleted]!"? (nearly everyone who’s ever sailed one)?
For well in excess of one hundred years racing sailing canoes has fascinated, exasperated, intrigued and even infuriated some of the world’s great sailors. Along the way decked canoes have provided the earliest known recorded planing boats, the second longest standing international sailing event, an enormous amount of idiosyncratic fun and the ability to go upwind like a stiletto through butter. Sailors who become smitten with the class’ unique challenge often stay sailing them for decades.
The key features of the Canoe are its relatively small but highly efficient rig, its long, slim and lightweight hull, and of course that sliding seat. The "plank" is key to the experience. There’s something very unique about sailing your boat from your perch some feet from the windward side, and while all is going well its a surprisingly relaxing experience. Physically its generally less demanding than a trapeze or wings, but it does bring some extra handling challenges.
No boat can be all things to all men, and its pointless to pretend that this is a mass market boat. But then Château d’Yquem is not a mass market wine, and a pre war blown Bentley is not a mass market car. Some special things are, well, just special, and, unlike the wine or the car, this one isn’t unreasonably expensive...
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Designer: Sven Thorell
A Swedish B Class canoe by Sven Thorell, 1913. Sven Thorell was probably the most significant Swedish Canoe designer, both of sail and paddle boats, in the first half of the 20th C.
K26 Zenith, built to the Sol design, is still in existence in the UK. This blog has more about her history, her designer and her current painstaking restoration.
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From jimc, Mon Jan 20, 2020 9:05 pm
You mean as a post up to gooseneck height? I have to admit that I just wildly overbuilt mine: the engineering was above my capabilities... I started with a piece of standard mast section, which ran right down the bulkheads to the keel, and added a lot of unidirectional carbon to the part that was going to be above the bulkheads - probably between 4mm or 5mm thick total at a guess, and then tapered that off down to nothing after about 300mm. That was quite a short stump though. On another boat, not an IC, which needed a longer stump I started with the bottom of a broken carbon Finn mast and beefed that up a bit above deck level.
From Ger-83, Mon Jan 20, 2020 4:11 pm
I want to change my mast base. At the moment the mast stands on the foredeck. Now i want to change the mast base to a carbontube, but I am not sure how strong it should be. Will a 60x56mm Carbontube will be strong enough? What diameter do you use?
Year Location Gold Silver Bronze 1938 Vaxholm (SWE) Eric Ericsson (SWE) Nils Holm (SWE) Dietz Maas (GER) 1961 Hayling Island ( ... continue reading...
Extracts from Gordon K. (Sandy) Douglass "Sixty Years Behind the Mast - The Fox on the ... continue reading...
Uffa Fox - "Racing, Cruising and Design" - International CanoeClass - Flying FishInternational Canoe Classfrom Uffa Fox Racing, Cruising and DesignLength, overall - 17 ft. 0 in. = 5.18 m.Length, waterline - 16ft. 6 in. = 5.02 m.Beam - - - 3 ft. 1 3/8 in. = 0.94 m.Draught - 5 in. and 3 ft. 6 in. =0.12 and 1.06 m.Displacement - 400 lbs. = 181 kilosSail area - - - 106 sq.ft.Owner, Paul CliftDesigner, Uffa Fox Builder,Uffa FoxPaul Clift's Flying Fish has the longest length and smallest beampermissible under the rules, and as can be seen from the lines, thesedimensions produce a very easy and sweet-lined canoe. But when welook at the lines of these light and very fast sailing hulls we mustalways bear in mind that they plane two-thirds of the way around atriangular course, and even close reaching will get up and scootalong the top of the water, and for this reason their lines must bestudied from a different viewpoint than that taken when studying anordinary sailing craft.The sections are V'd forward, and are gradually flattened as theygo aft where they are almost flat. The buttock lines also carry thisout for they come down steeply forward, and then run aft almostparallel with the keel line, this giving the long flat run, necessaryfor planing.Paul, who is unquestionably one of our finest canoe helmsmen, andI, hoped that Flying Fish would be the fastest ever designed andbuilt. Actually, the only important cup she has won has been theQuincey Cup, and this I think is due to the fact that while she isundoubtedly fast, she is most difficult to sail, so that herhelrnsman has to spend almost all his energies and thoughts on puresailing, and has little left with which to study the course and theproblems to be found on it. The same thing occurred when Roger deQuincey and I challenged for, and won, the National Championship ofAmerica and the New York International Canoe Trophy. The canoesagainst us there were fast and easily driven, but they took so muchof their heimsman's brain and his strength of limb, that we in theheavier and more comfortable boats won enough races to bring thesetrophies home to England. So while I think these lines we are nowlooking at are very fast indeed, I do not think they are fast round acourse, and the moral of all this is that designers must put into thehands of helmsmen instruments, which, while being fast, are wellwithin their capabilities, so that plenty of spare energy, bothmental and physical, is kept in reserve, for the planning of theirrace and the sailing of it, enabling them to conduct ope
rations in a seamarlike manner rather than in a state of feverish excitement throughout. It is probable that future ... continue reading...
Designer: H C Smith Body Plan
Sheer and Half Breadth ... continue reading...