I have a small Diesel, looks to be a bit larger than an .049. It has no visible markings on it. It belonged to a friend of mine but, regretfully, he can no longer tell me anything about it. I've attached 3 phot's. I hope someone may be able to give me some idea as to what it is.

Looks like an older PAW (Progress Aero Works, made in England) but I can't tell the size from the photo. It has one too many fins for the 0.55cc engine, looks too small to be the 1.5cc (.09), so it might be a 1cc (.061).

I'd say a PAW 049 or .06 single ballrace. The anodizing suggests it was made late last century. Still available. The size should be stamped in the backplate.

See Engines/PAW website.

https://www.eifflaender.com/engines

The engine is a PAW 06 (1.0cc) single ballrace. The green anodising discolours after a lot of use to become the colour you see in the photos posted, mine did the same thing.

Ployd in OZ

Thank you, that helps a lot.