If that belt fails you just glide the plane to the nearest golf fairway. If the belt on your car fails, you take out a second mortgage.
and no need for an idiot light to warn you when the belt is broken... On a more serious note, in my side of he Atlantic, the ultra-light planes are not subject to the same stringent controls as "regular" light planes. As a passenger I would be scared to climb in such a machine unless this (non-redundant!) belt has been recently inspected by a certified professional. This being said a slow prop is probably the way to go in this type of aircraft. Nice concept.
Quote from the inventor : "Flying our aircraft entails risk: they are not certified; we sell them under the FAR Part 103 exemption which allows all kinds of privileges, in return for risk: no medical, no pilot license, no aircraft registration." They are now focussing on the navigation instruments, whereas the airframe division is so to say out of business (CNC tooling and inventories lost in a fire). Too bad: the "Stinson Reliant" cowl and the belt driven 2-stroke gear-train were distinctive.
