This is an adapter made by a gentleman in Michigan. He has as similar amputation as I do - but on the left side.
He built a super cub and this adapter is attached to his stick. He just pops of the hand unit on his myo-electric arm, and the brass portion of this adapter clicks into that socket. Very elegant.
He flies with the artificial arm freeing the right hand for throttle and other controls.
Unfortunately this will not work for me as my amputation is on the right side and and I must control throttle with the right arm. Also I want to be able to also hold the stick, freeing my good left hand for fine motor control tasks such as using the radio and navigation.