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Kayak and Canoe Design Bulletin Board
Re: Stability and Kayak Weight Question
Posted By: Hans Friedel In Response To: Stability and Kayak Weight Question (Jim Chase)
Date: Friday, 10 March 2000, at 6:17 a.m.
> I am not the engineering type, so give me some latitude on this question.
> If two kayaks have the same design, but are of different weights due to
> being constructed of different materials (wood vs plastic), is the heavier
> one more stable? Is it a complex interaction between paddler weight/cargo
> weight and kayak weight? And, for a heavier kayaker are there stability
> disadvantages to the ultralight type wooden kayak versus a heavier plastic
> one of same design?> thanks,
> jim
Hi Jim
Here is a stability kurve of one of my kayaks the red kurve has 120 kg bouyance and the green kurve has 130kg bouyance. Both boats has the same center of gravity.As you can se the red boat is more stabel than the green one (the blue kurve is a tuoring kayak). It is very important where the weight is placed. A heavy deck is worse than a heavy bottom. It is also important to keep the ends as light as possible otherwise the boat will perform bad in waves. But in general a light kayak is better
Hans
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