"Nav" wrote in message
| where a is the form coefficient, w weight which suggests that the wave
| making resistance rises with the square of speed. A factor that
| increases the steepness somewhat is the squat of the vesses as speed
| rises changing a. The skin friction directly rises with v. So that's
| resistance, but the power needed then rises with the cube of v.

Thank You Nav....... this is exactly what I was trying to tell Doug!!!

Your boat may not be all that quick... but you certainly are! ;-)

CM