First post here from a "born-again" RCer. It's been about 15 years since I built a kit or touched a transmitter, but have just recently decided to jump back into it. I used to me involved in High Power Rocketry, but after the ATF restrictions on the hobby after 9/11, it just wasn't fun anymore, so I needed something else to do. Back in 1991, my father purchased a Great Planes Trainer Sixty, along with the "then" new narrowband Airtronics radio. He got as far as building the wing and most of the fuse before he lost interest and packed it away. I recently ran across the kit and that's what re-kindled my interest in RC. I have finished the kit have all the control systems installed and am ready to mount the engine. But it's been so long since I've built a kit, and the instruction booklet was missing, I'm not sure the proper way to mount the engine anymore. I seem to remember being told before that the engine should not be mounted perfectly straight in the motor mount, but should be pointed slightly to one side to counteract the torque of the motor.

So, here's my question.

What IS the proper way to mount the engine? According to the technical data that I downloaded from the Great Planes website, is says that the engine thrust is zero to the right and down. Does this indicate that the firewall isn't offset and provides for zero deflection? Do I need to mount the engine (a .40 by the way) pointed slightly to the left (port) or straight?

Thanks
Connery Carroll
Chandler, TX