Travis86
New Member
I was wondering how this engine Twin-Cylinder : 3W-342iB2F TS : Katalog: 3W Modellmotoren - Modellmotoren und Flugzeuge can only swing a 40" blade when it has more power and displacement then a hirth f33? A birth f33 can swing a 60" they also have a 4 cylinder making 62hp that can only swing a 42" blade? Crank shaft stress? I was looking at the engine linked to power a ultralight .