Hi
This is my “Nitro models pusher Bobcat”.
Check the main gear retracts. I did not sink the wheels into the wing or fuselage.
The placement of the retract did not interfere with any of the wing structure.
This let me put a trimmed Master Airscrew 14x7 3-Blade Pusher on the O.S. 91.

This combo moves out!!!!!
The comets at the field was “except for the sound it just like a turbine jet”
I also agree.
Johnny