RE: Regarding SP series engines, props and airspeed...
They are made of a black material, Charles. I did nothing to them. They don't seem to be plastic either, I'm not sure what they're made of seems like some kind of graphite or carbon material. I still have to order a smaller diameter set so I can proceed on this project... I'm working on recovering the Mustang fuselage in chrome monocote and black trim (to match the real Mustang known as Quicksilver). [>:]
- Michael