The Kalbermatten Woopy is a Swiss high-wing, single-place, hang glider that was designed by Laurent de Kalbermatten of Villars-sur-Glâne. The aircraft seems to have been just developed to prototype stage and it is not clear if production was undertaken.Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 48. Pagefast Ltd, Lancaster OK, 2003.
Design and development 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.
Variants Woopy Fly Initial model. Its span wing is inflatable and has an aspect ratio of 4.58:1 and a wing area is . The glider empty weight is and it has a glide ratio of 9:1. Powered Woopy Fly A powered version of the Woopy Fly was developed in Siberia and flown with a two-stroke engine that gave it an empty weight of and a cruise speed of with a propeller. Woopy Jump More portable development model. Its wing is also inflatable and the glider empty weight is and the aircraft can be folded into a bag long.
Specifications (Woopy Fly)
References
External links
https://www.aeroexpo.online/prod/woopyjump/product-182061-26242.html