Only a 2ch test at the moment, the 3channel one with recoil will follow.
2s lipo and running direct off the receiver with a 6v fpv voltage reducer.
Yes the servo operation is not exactly smooth, maybe some tuning of the transmitter settings will allow me to change the speed of operation etc, but actually i am very happy.
Servos on this are simple MG90s in base(although the 2nd i am building at moment has a 360°Servo) & a metal servo for elevation as it requires quite a bit of torque to lift the gun section. I don't think this would work on 1s lipo, but it might barely run off a 4.8v nimh pack, maybe i can try that, but i think it would be on its limit.
There will be a 4th channel at somepoint for the axles so that the rear axle unit can also be steered, but you have to await those tests.