My AirBike project is finished and it flies great! It has a Rotax 503 DCDI and an Ivo prop.
Location: Stillwater, OK
e-mail address: monte.jestes@att.net
If you need a horn to sound when the airspeed drops below a certain level or when the power is cut and the landing gear is still up and locked, an electronic circuitry solution is the lightest, most reliable and most cost-effective way to go.