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Wiederkehr Cu-Climber GHW-1


Designed by George Wiederkehr, the Cu-Climber first flew in 1968. The wing has a large (12 x 6 in/ 30 x 15 cm) spruce/ plywood/ fiberglass box-spar stressed to +9/ -6.3 g. The remainder of the wing is a fiberglass/ balsa sandwich, with the bottom of the wing aft of the spar covered with fabric. The fuselage is a fiberglass semi-monocoque structure with foam bulkheads. The ship also has an all-moving conventional horizontal tail with an anti-servo tab. Full span ailerons/ flaps are used for approach control.

Wing span: 14.5m / 47.6ft
Wing area: 11.8sq.m / 127sq.ft
Aspect ratio: 17.8
Airfoil: Pfenninger 14%
Empty Weight: 218kg / 480lb
Payload: 100kg / 220lb
Gross Weight: 318kg / 700 lb
Wing Load: 26.95 kg/sq.m /5.5 lb/sq.ft
L/DMax: 28 88 kph / 48 kt / 55 mph
MinSink: 0.76 m/s / 2.5 fps / 1.48 kt
Seats: 1
No. Built: 1



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