but still ... 5 hp drag on the boat. that is a lot.

The was with a 47 foot, 20,000 pound catamaran doing over 9 knots in a 20+
breeze, with two of the 12hp electric wheels. Your mileage may vary.


"Martin Baxter" wrote in message
...
Jeff Morris wrote:
Being a little sloppy with the units is not that bad - his real blunder
is
claiming 72 Watts output. The Condor catamaran claims 22 Amps at 144
Volts,
or
over 3 kW output when regenerating in a good breeze. They generate
enough
sailing during the day to power in and out of their inlet.


I'm still pretty skeptical, 3 kW is neary 5 Hp, allowing for some losses
it's going to be equivalent to stapping a 5 horse outboard to your bow
and run it full throttle trying to push the boat back. This might have
a significant impact on performance, speed wise, no?

Cheers
Marty