Schreder’s first sailplane, the HP (for ‘High Performance’) 7, first flew in 1957 and was destroyed in an aerotowing accident right after the 1957 U.S. Nationals. Schreder then built the improved HP-8 in 1958 and won the Nationals with it in that year again in 1960. He set world records with it in all three…
The HP-9 was intended to fly in the Standard Class at the 1960 World Championships, but was not completed in time. It has an all-moving horizontal tail, retractable wheel, airbrakes and Fowler flaps which increase the wing area to 13.35 m./ 143.7 when extended, reducing the sink to 0.64 m/s/ 2.11 fps./ 1.25 kt. @…
Nelson developed the Hummingbird in 1953 after discontinuing the Dragonfly. It is a two-place tandem self-launching sailplane. The Nelson engine retracts when not in use, cutting drag for soaring. The fixed gear is two wheels in tandem, the front one steerable with rudder pedals. It features an all-moving horizontal tail with anti-balance tab, spoilers and…
First flying in 1974, the Janus seats two in tandem with the rear seat occupant positioned near the center of gravity. The original Janus and Janus B models had an 18.2 m. wingspan, fixed landing gear and a gross weight of 621 kg. / 1,370 lb. The Janus C incorporated carbon fiber components, retractable gear,…
The J-4 Javelin, a single ship capable of carrying a child behind the pilot features an aileronless wing with spoilers for glidepath control and ‘spoilerons’ for roll control, the latter causing almost no adverse yaw. The wing spar is a chem-milled tube, and the airplane uses very few normal rivets, most fastenings being cost saving…
The prototype Ka-1, which first flew in 1952, was constructed in Kaiser’s attic. The model was later produced by Schleicher. The Ka-1 has top surface spoilers for approach control. No landing wheel is fitted, takeoff normally being made with the glider sitting on its mainskid.
The Ka-2 was designed as a two-place advanced trainer. The later Ka-2B had the wingspan inceased to 16 m. Approach control is effected by top and bottom surface Schempp-Hirth type airbrake. Specifications in parenthesis are for the Ka-2B. ATC.