Talk about airplanes! At last count, there are 39 (and growing) FAA certificated S-LSA (special light sport aircraft). These are factory-built ready to fly airplanes. If you can't afford a factory-built LSA, consider buying an E-LSA kit (experimental LSA - up to 99% complete).
You can search the Matronx list server. There is a Rotax interest list there that will likely have mention of it, if it's a wide spread problem. The list is pretty active, probably worth subscribing to for anybody with a Rotax engine.