luv2bsailin wrote:
>Hans,
>You are assuming he will need 20KW to get 6KT, but is that
>realistic? Is there any available data on power requirements for
>that hull (or something similar operated well below hull speed? It
>seems obvious that something designed for displacement speeds will
>be more efficient, but since there are so many more
>"non-displacement" boats out there it might be worth some research.
A "non-displacement" boat is a "displacement" boat when it is not
planing, below the hull speed.
Ballpark estimates of the power/speed relation in this regime depend
mainly on the boats weight and waterline length.
--
Hans Rijnbout
Utrecht, Netherlands
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