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Kalbermatten Woopy
The Kalbermatten Woopy is a Swiss high-wing, single-place, hang glider that was designed by Laurent de Kalbermatten of Villars-sur-Glâne, Switzerland. The price was about 15'000CHF and ready to fly about 10 minute.
The Woopy fuselage is made from aluminum tubing, with a conventional tail, a seated pilot position and weight shift controls. The wing is inflatable and based on the same concept as an air mattress, kept inflated by two small battery-powered fans. Launch and landing is carried out on foot.
Much of the development was undertaken using scale flying models to speed construction and reduce pilot risk.
Two models were developed, the Woopy Fly and the Woopy Jump, plus a powered version of the Woopy Fly.
The Woopy Fly aircraft was developed in Siberia and can be assembled in 15 minutes, the wing is inflated by two small electric fans underneath the wing, and it is powered by small 20 hp engine.
Woopy Fly
Initial model
Wingspan: 9.7 m (31.8 ft)
Aspect ratio: 4.58:1
Wing area: 20.5 sq.m (221 sq ft)
Empty weight: 17 kg (37 lb)
Glide ratio: 9:1
Powered Woopy Fly
Engine: HE R120 120 cc two-stroke, 20 hp
Propeller: 70 cm (28 in)
Empty weight: 123 lbs (56 kg)
MTOW: 240 lbs (109 kg)
Cruise speed: 32 kts / 37 mph / 59 kph
Stall speed: 23 kts / 26 mph / 43 kph
VNE: 40 kts / 46 mph / 74 kph
Take-off distance: 197 ft (60 m)
Landing distance: 164 ft (50 m)
Fuel consumption: 1 GPH (3.8 LPH)
Woopy Jump
More portable development model
Empty weight: 7 kg (15 lb)
Folded length: 160 cm (63 in)

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