Hi Paul,

How much dexterity do you have in your hand? You'll need fairly fine motor control in your fingers to effectively control an airplane.

A standard R/C transmitter may suit your needs. The joysticks have removable knobs that can be replaced with whatever shape best suits your needs.

I once worked with a young man who only had one working arm and hand. He was able to operate the aileron/elevator stick with his good hand, and his father fashioned an extension for the throttle so he could get to it with his hand. The young man was able to get as far as learning to land, but unfortunately we never saw him again.