On board battery charger
My guy at the field bought a H9 Cub. It's huge and a very impressive plane. He's having problems with current drain from the ignition system.
I saw an ad for a prop shaft mounted generator that put out a DC voltage to run things or charge batteries on a plane. I can't find or remember where I saw it. I've been on Google and on the forums. It was $99 and come in a pack. I saw the think in a magazine best I remember. I think it fit .60 - 1.20 engines or something. I found one made by Sullivan but it's quite expensive, and one called the "Jewel" made for helicopters.
Any ideas?