[Paddlewise] rocker etc.

John Winters wrote
SNIP
>The basic physics are simple - any unbalanced forces around
>the yaw axis of the boat will initiate a turn and the rate
>and direction of the turning will vary with the magnitude
>and directions of forces which will vary thorughout the turn.
SNIP
>it seemed easy enough to achieve goals intuitively.

G'Day John and Paddlewise,
					Why boats were easier to turn with a paddle when edged was very
thoroughly explained and I could appreciate that the the narrowness, length
and rocker of a boat might determine whether some boats track straight when
edged and others turn.

But its not at all clear or intuitive why different boats may turn in one
direction or another when edged on one side only? And I doubt that I'm alone
in not understanding this even qualitatively.

I'ld be very appreciative of an explanation or a reference! Are there any
standard texts that treat this subject?

All the best, PeterO

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