[Paddlewise] Baidarka thoughts

I suspect that Dyson guessed that planing was necessary for the speeds 
reported in old accounts. We know better and sprint kayaks that often race 
at Speed/Length ratios above 2.0 prove that. I have paddled kayaks at S/L 
above 1.8 and I am a pretty wussy paddler but have never planed. The 
horesepower problem may never be solved since the Inuit very ungraciously 
died before we could test them.

After Dyson sent me the video I built a model from his lines. When I towed 
it it simply rolled over on its side rather than plane. Of course, a paddler 
might have kept it upright. Tough to duplicate a paddler in a pond test 
tank. :(

I my study of native kayaks bKr - 12 had a resistance of 10.11 pounds at S/L 
1.52. The best multi chine boat Adney/Chappelle AC - 186 was 9.79 at S/L 
1.52.

I did not investigate further because KAPER cannot be relied upon at all 
(Skepticism at all speeds is advised :-) )above 6 Knots. It certainly can't 
deal with planing.

I did try running the Dyson Baidarka through Savitsky's formula. It more or 
less suggests that  the hull is poorly shaped for planing as is the case 
with every native kayak I have studied.

Keep in mind that I still subscibe to Savitsky's definition of planning 
which kayakers who have done no research consider erroneous. :-)

Cheers

John Winters 
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