I built this ametek 30 genny last weekend and finally got it flying on saturday this weekend.
It uses a set of ed's ABS blades and the rotor is 32".
I don't know what it puts out for wattage but last night and half the day today I watched the multimeter connected to the battery on a dead junker 12v 7aH SLA slowly climb from about 4 volts and when the wind died down for the night tonight it was sitting at 12.09 volts on the battery side of the blocking diode.
I sorta' borrowed ideas from other folks here and decided to build a furling mount, although with the ABS blades they'll probably start fluttering and stall out before it furls all the way
What can I say?......I needed the welding practice for the next one?
It was a fun weekend project, and my first usable wind genny.
It's flying on a 14 foot "tower" that's made of a 10 foot piece of 1" black steel plimbing pipe and a 4 foot piece of the same slid down inside a 10 foot piece of 1-1/4" black steel plumbing pipe with a connector at the top for the guy ropes(?) and another three foot piece screwed into the top of the connector so only 1 foot of 1" pipe is sticking out the top.
The bottom end is held in place by one of those "railing base flanges(?)" bolted to the top of my trusty cast iron 36" x 80 pound patio umbrella base.
And it's staying up rather than being taken down and put away at the end of every day.
And here's the required pic