Hi,
First post, so thanks for letting me in the club!
I've heard there was a small rotary engine, possibly made by OS, that were used in RC planes. I'd like to find one or two, preferably running. Can anyone help point me in the right direction? I believe these have long been out of production.

I did try to find one in the classifieds, but those pages were all blank and I suspect the newbies don't have access to the god stuff.

Thanks!