prop bumper

For those of us that use a 6s setup with larger props and the
RVJET, we have to mount the motor further back to avoid hitting the vertical stabs. Even after doing this there is a chance on start up
that the blades lurch far enough forward to hit the vertical stabs. I
have made a simple prop bumper to help stop this from happening. It mounts between the prop holder and the spinner base. You may
have to modify the spinner prop cutouts about 3mm for the additional space the bumper take