http://www.airbikeuk.co.uk/Airbike-prone.htm

Designed for the foot launched hang glider the Prone Airbike
allows the pilot to convert pedal power into height. A front loading reserve
parachute allows ample room to pedal while enclosed in the harness.

An optional folding propeller is available. The propeller locks during take-off
and landings and is freed only when power is required. A carefully designed
airframe allows for very easy ground handling. Two small wheels carry the extra
weight of the drive mechanism. Compact and lightweight, the Prone Airbike
releases the pilot from the confines of ridge and thermal lift and opens up the
skies.