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Re: Coastal - Secondary stability
By:Nick
Date: 10/31/1997, 9:38 am

I am not sure exactly what you mean. Because of the rounded transition from hull to deck across the sheer most of my boats will feel different from the typical sea kayak with a higher sheer. Generally my boats will probably have a slightly lower final stability, but a smooth transition. This makes my designs easier to roll back up than is typical. This design is inspired by white water kayaks.

Nick

: Just got my Coastal on the water (still need to sand the epoxy and varnish but ...) for testing.

: The Coastal has an unexpected kink in its stability curve. As I was doing sculling braces,
: I noticed that the restoring moment crossed "0" thrice. I balanced the boat:
: on the shear line,
: in the hollow just above the shear, and
: on the top edge of that hollow.

: I am not sure if this is good or bad but it is differnet than any other boat I have used (they cross "0" once).

: Is it a design feature or an artifact of getting the cockpit high enough?




Messages In This Thread

Re: Coastal - Secondary stability
Nick -- 10/31/1997, 9:38 am