Financed by the Royal Aeronautical Society, the Weybridge Man Powered Aircraft Group’s Dumbo, which took 10,000 man hours to build and had wings which spanned 36.6 m (120 ft) and drooped down at rest. It has a structure of metal tube covered in see-through ‘Melinex’. All the flying surfaces are capable of being warped to act as control surfaces.
The aircraft has a bullet-shaped fuselage with a four-unit tailplane mounted at the extreme ear with a pusher propeller behind that. The pilot sits in the nose.
The wing is internally braced and set low on the fuselage.
It first flew at Weybridge on 18 September 1971.
Wingspan: 120.00 ft
Wing area: 480 sq.ft
Aspect ratio: 30-1
Empty weight: 125 lb
All Aero 