RE: converting air to electric retracts.
Jesus I think your right I do have the 50:1 Gearboxes but I have the smaller motors 6V. Although I am running them at 7.4V.
I just looked at the Electron site, beautifully made retracts at a good price. Wouldn't have been any good to me though as i needed 95deg. because of the anhedral for the first part of the wing on the Gannet.
Although I have got my undercarriages going up and down controlled with the Arduino and current sensing at the end points theres still a lot to figure out before its suitable to install in a plane. So thier controller for 65euro's is interesting, Can the current sensing in this unit be adjusted to suit different motors.
A couple of photo's of the Contra Prop unit powered by two brushless motors.
Windy