Came across this engine in a box of my dad's stuff from when he was a kid...
I got it running again, and I think I found out which it is, but I am trying to figure out what plane it came in, and then what I can put it in now to have a bit of fun!
I think it's a cox 191-5 product engine, and he says all he remembers is his brother flying the plane once and crashing it, destroying the airframe (the box said it was indestructible! Apparently not
If anyone has any idea what it was, how common the engine is, etc let me know.