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Schneider DFS 108-14 SG-38 Schulgleiter / ESG-9 / Grunau 9
Tachikawa Ki-24
The Schneider DFS 108-14 SG-38 Schulgleiter (German for "school glider") is a German high-wing, cable-braced, single-seat primary glider that was developed from the Stamer Lippisch Zögling, and designed by Schneider, Rehberg and Hofmann at Edmund Schneider's factory at Grunau in 1938, hence the designation. It was produced by several builders, including Deutsche Forschungsanstalt für Segelflug (DFS).
The SG 38 was designed to be a training glider for basic flight training by the Nationalsozialistisches Fliegerkorps (NSFK). The usual launch method was by bungee cord from a sloped hill. Because training was conducted solely by solo flight the aircraft had to be very easy to fly and also easy to repair.
Schneider DFS108-14 / Schulgleiter SG-38
The high-wing design uses a kingpost and cable bracing. The primary structure of the glider is of wood, with the wings, tail surfaces and inverted "V" kingpost all finished in doped aircraft fabric covering. The pilot sits on a simple seat in the open air, without a windshield.
The basic configuration was similar to earlier gliders such as the Stamer Lippisch Zögling and the Grunau IX, but the SG 38 was an entirely new design. Improvements included enlarged tail surfaces for better stability, a separate skid mounted on shock-absorbing springs, and an updated seat for the pilot. Features were parallel rudder movement, provisions for trim weights fore and aft, and screw jack atop A- frame which facilitated assembly and disassembly. Large horizontal stabilizer and small elevator surface, with limited up-travel, made accidental stalls almost impossible.
Schneider ESG-9 / Grunau 9
First flying in 1938, the SG-38 played a critical role in pilot training for the Luftwaffe in the Second World War, as a simple, but robust, trainer for the rapid increase in the number of pilots needed by Germany. It was commonly flown by bungee launch on the slopes of the Wasserkuppe.
Landings could be made, usually without damage, with stick all the way back during final glide. After student had learned to balance glider with ailerons while facing into wind, level ground "Rutsches"--short duration sling-shots with insufficient speed to become airborne--were made. Higher launch velocities followed to permit short flight; then student would advance to hillside launches and, finally, to winch tows and longer flights.
Schneider DFS108-14 / Schulgleiter SG-38 SG-1
From 1949 to 1951 Spain's AISA produced 50 licence-built aircraft. The SG-38 was built in Japan as the Tachikawa Ki-24.
In the UK, Elliotts of Newbury built a copy of the SG.38 called the Elliotts Primary EoN; its version first flown in 1948 and used by the RAF as the Eton TX.1.
Schneider ESG-9 / Grunau 9 IL / G 36
Overall, about 10,000 were built.
SG 38
Wingspan: 10.41 m (34 ft 2 in)
Wing area: 16 m2 (170 sq ft)
Aspect ratio: 6.76
Length: 6.28 m (20 ft 7 in)
Height: 2.43 m (8 ft 0 in)
Empty weight: 100 kg (220 lb)
Gross weight: 210 kg (463 lb)
Maximum speed: 115 km/h (71 mph, 62 kn)
Never exceed speed: 115 km/h (71 mph, 62 kn)
Maximum glide ratio: 10:1 at 52 km/h
Wing loading: 13.75 kg/m2 (2.82 lb/sq ft)
Crew: One

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