I’ve always thought this is one of the coolest aspects of our little hobby, that so many with various challenges can still come out and have a good time. So many examples over the years come to mind, and generally some of the most positive and uplifting people too. So many great lessons for us all, especially our younger enthusiasts.

Back on the question, it’s certainly possible to rig up a wheel radio like asked, essentially just need to combine the second pot and rig up a travel mechanism. This is the kind of project I could really enjoy working on if I had the time.

Practically though seems like the simplest approach is the stick radio mentioned. Might be more stable mechanically too, at least without some good design and support construction for a wheel approach. Perhaps best to start with a surface version radio, aren’t the air radios set up differently in regards to spring tension, neutral-brake, etc? I know this tends to be thought of as somehow inferior in the US, but it never seemed to hold back Masami or any other number of top racers around the world that use sticks.