In reply to your (Electric) rotarywing posting! An r/c version is all I can Fund Right now.I also have a Neck injury which limits my abilty to look or reach up!!1st prototype was built from a Foam Glider wing with Brush Motors. 2nd is Old School Balsa Spars and Mono coat.I still can only work for a couple of hrs. at a time.Going to try using contacts from are Car steering wheel.!st prototype used a Drum style which I made myself.More contacts for (Brushless) Motors would be harder to do!