The replacement motor for the Raptor glider, a Turnigy 2217 1050kv unit, arrived a few days ago and I've just finished installing it into the Raptor glider.
Replacing a Phoenix motor, which has a bell mount, the Turnigy was an unexpectedly tight fit due to the motor installing straight onto the firewall, with the result that the motor cables are squeezed between the motor and the fuselage.
To move the motor back a little, and to strengthen the mount which is just 3mm ply, I glued in a second firewall which is provided as a spare with the Raptor. The motor is turning freely so I think there's just enough room for the outrunner to clear the cables.
The downside to pushing the motor back , as I discovered when I installed the motor, is that the shaft stickout is marginal. However the spinner has tightened up and the prop is turning fine, so it might be OK...
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