Hi,

Was there a propeller manufacturer Barthel or similar back in the 1970th?
Props from this manufacturer I'm searching the name onwas rather widespread, at least in Europe among F3A flyers.

I had such a prop on my Curare back then and that prop lasted forever and was made of glasfibre, no flex at all, and very good (and expensive)prop.
I know Hanno Prettner also used this prop make back when he flew hisCurare in 1977.

Below is picture of the prop on my Curare back from 1978 and a close picture of Hanno Prettner engine and same prop.

It was a logotype like a propeller (thinline) with an engine seen from front in the middle and the manufacturer name was written under the logotype.

I just want to know the name. I assume the prop manufacturer do not exist anymore.
Someone remember?

Thanks,

Bo