ArmedZagi

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Hi,

My first gas engine was completed yesterday by a friend in my club. Its a 52cc conversion engine. [link=http://duropower.com/item.asp?PID=86&FID=3&level=1]http://duropower.com/item.asp?PID=86&FID=3&level=1[/link] (they went up on their price by $40 since I bought it). What I was wondering is, how many pounds of thrust can this engine produce? When it was on the test stand it turned an old 20x10 Dynathrust prop at 9600 rpm.

I'm basicly going to desing and build a Biplane around this engine. I want it to be capable of performing basic 3D manuevers. What should target weight be? I'm thinking 72" wingspan and aiming for 20-24lbs. Will this be enough engine or should I scale down the plane?

Heres some pictures and video of the engine.

[link=http://video.google.com/videoplay?docid=7063498753981003477]Running[/link]
[link=http://video.google.com/videoplay?docid=1899399485091143431]Starting[/link]

Thanks for reading

EDIT: The muffler has been modified since the pictures...the new version is in the videos