View Full Version : Potez-Bloch propellor 1915 - what was so special about it ?

02-15-2007, 09:24 PM
I have come across mention of the Potez-Bloch propellor (invented by Henri Potez and Marcel Bloch - later of Dassault - in 1915).
As Wikipedia says most Allied aircraft were equipped with it thereafter, I wondered what was so special about it.

I am sure one of you experts will be able to tell me!