On Mon, 14 Apr 2008 21:50:34 -0700 (PDT), Jay
wrote:

On Apr 14, 5:50*pm, Jere Lull wrote: If you've got
the electric already, why not try it and see how it works? From what
you say, it sounds good enough, but only you can accurately assess
that. 30 pounds continuous could get our 28 footer moving at perhaps
a knot or two in flat water.
Jere Lull


I'll give it a try. Does anyone know of a formula to roughly
equate electric motors to horsepower? Would be curious as to the
horsepower equivalent of my Minn-Kota Endura 30. -J

Thrust is a treacherous unit for power. It needs an effective speed to
make it sufficiently specified.

30 lb thrust at 2 mph =
134 Newton at 0.9 meters/second =
120 watts =
1/4 HP (say)

But: 30 lb thrust at 4 mph = closer to 1/2 HP.

Brian W