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The BS-1 was designed and built in 1962 by an Akaflieg Braunschweig student Bjorn Stender to the order of a South African soaring pilot and industrialist. Following the death of Stender in a flight test accident the next year Glasflugel took over the project and manufactured the production version. The BS-1 won the world 300 km. Speed record (135.3 kph / 85.94 mph ) set by Alfred Rohm of West Germany in 1967. In 1970 Terry Thys of San Leandero, Ca made a 917 km / 570 mile flight; which was then the third longost in soaring history. The BS-1 has camber-changing flaps, airbrakes, retractable wheel and a tail chute.
Glasflugel H 201 Standard Libelle
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The H 201 Standard Class version of the flapped H 301 Libelle first flew in 1967. It originally had a fixed landing gear; but with a change in the Standard Class rules, a retractable gear (H 201B) became standard. The B model features larger uppersurface dive brakes, a larger stabilizer for better low-speed handling, PVC foam filler for the wing ( instead of balsa) to increase durabillity and profile accuracy, and (as an option) a water ballast system (50 kg. /100 lb.) with highter gross weight. The specifications listed here are fore the H 201 B. In 1970 Sue Martin of Australia set a womens’world Out & Return record with a flight of 656 km / 407.64. ATC
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Designed for the typical sport pilot rather than the competition pilot or record seeker, the Club Libelle is an outgrowth of the Standard Libelle design. Double-taper wings raised to the shoulder position provide greater clearance on landouts. The wings carry broad-span trailing edge flaps for approach control. The landing gear is fixed and a T-tail replaces the low-set tailplane of the Standard Libelle. ATC
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Designed as a successor to the H 201 Standard Libelle, the Hornet has trailing edge dive brakes operating well behind the laminar lift-producing area of the upper wing. The improved Hornet C model was designed to carry an additional 30 kg. / 66 lb. Of water ballast. Specifications are for the original model.
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The Libelle first flew in 1964 and quickly revolutionized competitive soaring. It spearheaded the fiberglass take-over in American competition flying, becoming the first fiberglass sailplane to receive an U.S. ATC. In 1969 Soaring magazine readers voted the Libelle the World’s most beautiful sailplane and the one they would most like to own. The H 301 Libelle has camber-changing flaps and was able to compete both in the Open Class and, with locked flaps, in the Standard Class. ATC
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Designed for the 15 m. racing class, the Mosquito first flew in 1976 as a flapped refinement of the Standard Class 206 Hornet. It features trailing edge dive brakes and interconnected variable camber trailing edge flaps, and has automatic connection on ailerons, elevater, air brakes and water ballast plumbing. ATC
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The Glasflugel 304, which first flew in 1980, was the 15-meter racing class successor to the 303 Mosquito. Is features Glasflugel trailing edge dice brakes and interconnected variable camber flaps, a parrallogram control stick, T-tail with fixed stabilizer and elevator, and automatic connection on assembly of all flight control
Specifications – 17 m Kestrel, (in parenthesis, Slingsby T.59D 19 m Kestel)
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The 17 m. Kestrel features camber-changing flaps that operate in conjunction with the ailerons, airbrakes, drogue chute, water ballast and retractable gear. The fuselage is a fiberglass monocoque (not sandwich) for greater resilience and pilot protection. The cockpit has room enough for a 198 cm / 6 ft pilot and features a control stick that slides fore and aft (rather than rotating) to reduce likelihood of pilot-induced oscillations and which has a press-to-trim-push-button trimmer. It has a nose and a center of gravity release. Goran Ax won the second Smirnoff Transcontinental Sailplane Race in a Kestrel in 1973. Sue Martin of Australia gained both the womens world 100 km speed record ( 113.2 kph / 70.36 mph ) and 300 km triangle speed record (114.4 kph/ 71.11 mph). As well as building the 17 m. model under license, Slingsby of Great Britain developed a 19 m. version which first flew in 1971 incorporating a drag reducing wing root fillet and an anti-balance tab on the elevator. Specifications in parenthesis are for the Slingsby T.59D 19m. Kestrel. ATC
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The 604 was a 22 m. span development of the Kestrel 17. First flying early in 1970, it finished sixth in the 1970 World Championships at Marfa, and also came second in the Open Class at the 1974 World Championships at Waikerie, Australia. Originally intended as a development vehicle for a two-seat high performance sailplane, the 604 has a three-piece wing weighting more than 272/ 600 lb.; just the center section weights 160 kg/ 353 lb. The wing has six flaps, the outer pair of which move at a 2:1 differential with the ailerons. Large spoilers deploy from the upper wing surface only, and there is a tail chute for added approach control.
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