On Sun, 30 Sep 2007 00:44:04 -0400, Wayne.B
wrote:

On Sat, 29 Sep 2007 20:10:01 GMT, (Richard
Casady) wrote:

there must be some high output, low rev alternators / generators out there
that can do the job.

High output and low revs just don't go together. Halving the rpm tends
to double the size and weight. There is a reason why they invented
gearing. I think maybe you need a big prop and a gearbox.

Changing drive pulley size can improve alternator output a lot more
easily than props and gear boxes. Another strategy is to install a
high output alternator and run it at a reduced rating that still meets
your needs.

There has been no mention of drive belts so far. Where did you even
get a pully? Nothing in the discussion to hint at one's existence. And
there is. in general, no difference in weight and complexity
comparing gears and belts.

Casady