Saw a $40 USD toy foam twin electric fly at the flying field today. No elevator, no rudder, no ailerons. Just differential thrust. Silly thing actually flew fairly well!
Wasn't sure which group to ask about them. But it sure seems more single channel yaw and thrust than anything else.
With power off fairly steep glide, full power continuous increasing climb angle did not see a loop.
Hi Grif, was it a KF606? I bought one and it was so much fun I bought another to live permanently in my van
Very manoeuvrable and stabilised too! viewtopic.php?p=8412#p8412