OK guys, I talked to Tony on the phone about this deal. So it's time to clear some stuff up.
Tony was selling stuff from Presto Wind. And this is the stuff that's on his website. He realizes it's all bogus, the stuff on his website is coming down and being redone, and that's the main reason Steadfast has not gotten his ReDelco. Tony has been trying to figure out how to make it work. The stuff from Presto Wind does not work any better than any other Delco 10SI frame alternators, or their derivatives. And he's had a lot of returns and complaints on this stuff, and he's trying to rectify that. He actually called me, looking for advice on it, and I wasn't able to take the call when he called. So I called him back.
Tony does not do this for a living - he has to work like the rest of us to make money to live on. Hurricane Wind is a sideline for him because he's interested in renewable energy, and especially wind turbines. He got hooked up with the wrong people to form his renewable energy business on, and he knows it now.
So to be clear, the ReDelco that Steadfast is getting is not going to have "amazing output". It is, after all, a Delco 10SI frame unit, and they are what they are. He is not advertising it as being "amazing", or 400 or 500 or 1,000 watts, or anything like that. He calls it a "trickle charger". It is wound with 42 turns of AWG 21 so its max output is going to be about 8-10 amps , or maybe a hair over 125 watts on a really good day.
As I told Tony, the big unknown is those bent aluminum blades. There is no tested or published Cp or ideal TSR data for those. We don't know what their unloaded tip speed ratio even is, or if they like to run at TSR 4 or TSR 7. Whatever they like to run at, they are not going to make much power anyway because they don't have real airfoils.
Tony got into the "low wind" super low rpm Delco's because that's what everybody else has got. He knows it's wrong. But he wants to sell a product that works as advertised, and right now he's up to his armpits in junk that he got from Presto Wind, and trying to figure out how to recoup his losses.
So Steadfast will be getting his ReDelco. It will not be "amazing". It will cut in at 140-150 rpm, and that might work with those bent aluminum blades, and it might not. Steadfast will have test that.
The ReDelco will not work for an engine driven standby DC unit. The stator is way too light. It would need to be rewound with 4 turns of 13 AWG for 24 volt, and then you may as well use a stock 57 amp stator out of a car alternator. It does have a claw pole rotor in it like a Wind Blue.
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Chris