RE: small racer? need help
Too Small?
I just made an aluminum engine mount for my Jett .50!
Next is to add a doubler to the back side of the firewall & 6-32 blindnuts.
8 oz Jett bubbless tank is on order
As well as some digital thin wing servos for flapperons use.
The Fin will get the rudder cut out and set up.
I have a feeling that Right Rudder on takeoff will be a must!
What OLD OS .40 do you have? I don't think you will get much more than 15,500 RPM