Horten Parabel


According to Reimar Horten this planform is theoretically the most efficient and has the minimum induced drag.  The validity of the theory is not known.  The glider was constructed in a burst of enthusiasm but proved rather awkward to make because of its curves and was damaged during transport and never flown.

Wing span: 12m
Wing area: 33sq.m
Empty Weight: 90kg
Payload: 80kg
Gross Weight: 170kg
Wing Load: 5.15kg/sq.m
Aspect ratio: 4.4
L/DMax: 19.5 61.5 kph
MinSink: 0.8 m/s 45 kph
Seats: 1