Contra Rotating Props

[Jakemaster]

Okay, since I am an aerospace engineer to be, I know what they are.  On helicopters, they eliminate torque effects without the need of a tail rotor.  But when used on conventional aircraft, do they serve the same torque effect reduction?

[ChuckMajik]

I'd image they do.
The helicopter design probably adopted the idea from conventional aircraft.

[Felix/FFDS]

[quote]Okay, since I am an aerospace engineer to be, I know what they are.

[Jakemaster]

Thank you very much for the info.  I really wasn't sure about it.  I had wondered for a while if it was the same, but until now, I ignored it and thought it makes the plane look cool.

[C]

Shacketon was another famous user of the contra rotating prop...

[Hagar]

[quote]The Fairey GAnnet antisub plane was an interesting variation on the theme.

[Skligmund]

Piper did it once to a PA-22 Tri-Pacer. They installed two engines on the front, and spun two props opposite directions. I have a picture here somewhere....

[Ivan]

Shacketon was another famous user of the contra rotating prop...

Don't forget the An-22, An-70 and the TU-95 in all variants...

contra rotating props is a good way to get all the power out of the engine whitout having to use a huge prop