RE: GP Super Stearman
Propwash
As long as you don't expect ott aerobatics then its fine, large loops etc no probs also mine balanced perfectly with no added weight anywhere. One mistake I did make was to use the standard silencer (which kills the engine) now using a BCM inverted silencer and the power gain is very noticeable. Ignition and battery mounted underneath undercarriage in a ply box, works very well. Will post pics if required.