RE: Trainer/student with different modes. Possible?
A long as the two transmitters have the channels mapped as folows, it will work:
channel 1 = aileron
channel 2 = elevator
channel 3 = throttle
channel 4 = rudder
A "true" mode I transmitter will just have channels 2 and 3 working off different sticks. A proper mode change changes not only the stick springs and ratchets, but the channel mapping, too.