Engineering:DFS SG 38 Schulgleiter

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Short description: German single-seat glider, 1938
SG 38 Schulgleiter
SG38 at Airpower11 01.jpg
SG.38 reproduction
Role Primary glider
National origin Germany
Designer Schneider, Rehberg and Hofmann
First flight 1938
Introduction 1938
Status No longer in production
Number built about 10,000
Developed from Stamer Lippisch Zögling

The Schneider DFS 108-14 SG-38 Schulgleiter for 'school glider' is a German high-wing, cable-braced, single-seat primary glider that was 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).[1][2]

Design and development

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.[1]

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.[3]

Operational history

DFS SG.38 Schulgleiter

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.[2]

From 1949 to 1951 Spain's AISA produced 50 licence-built aircraft.[4]

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.

Aircraft on display

  • Danmarks Flymuseum, Stauning Vestjylland Airport, Denmark [5]
  • Deutsches Museum, Munich, Germany [1]
  • Museo del Aire, Madrid, Spain [4]
  • Musée de l'Air et de l'Espace, Paris – Le Bourget Airport, France [6]
  • Museu do Ar, Sintra, Portugal[7]
  • National Museum of the United States Air Force, Dayton, Ohio, USA[2]
  • Shuttleworth Collection, Old Warden, Bedfordshire, England [8]

Specifications (SG 38)

File:Gummiseilstart SG-38.ogv

Data from [9]

General characteristics

  • Crew: One
  • Length: 6.28 m (20 ft 7 in)
  • Wingspan: 10.41 m (34 ft 2 in)
  • Height: 2.43 m (8 ft 0 in)
  • Wing area: 16 m2 (170 sq ft)
  • Aspect ratio: 6.76
  • Empty weight: 100 kg (220 lb)
  • Gross weight: 210 kg (463 lb)

Performance

  • 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)

See also

Related development

Aircraft of comparable role, configuration and era

Related lists

Images

  • SG-38 bungee launch

  • SG-38 landing

  • SG-38 being carried to the launch point

  • SG-38 in the Deutsches Museum Munich, Germany

References

  1. ↑ 1.0 1.1 1.2 Deutsches Museum (n.d.). "Basic Training Glider SG 38, 1938". http://www.deutsches-museum.de/en/collections/transport/aeronautics/sailplanes/basic-training-glider-sg-38/. 
  2. ↑ 2.0 2.1 2.2 National Museum of the United States Air Force (n.d.). "Schneider Schulgleiter SG 38". http://www.nationalmuseum.af.mil/factsheets/factsheet.asp?id=16888. 
  3. ↑ Sailplanes 1920-1945, Martin Simons, EQIP, 2001
  4. ↑ 4.0 4.1 Museo del Aire (n.d.). "Fotografía del Aisa Schneider Shulgleiter". http://www.ejercitodelaire.mde.es/ea/pag?idDoc=CC080F0B0240A9D7C125747A002415EA&idImg=1850315910A615E1C125747A0026FC8B. 
  5. ↑ "Website DFm". 2015. http://flymuseum.dk/fly?id=193:hoffmann-rehberg-schneider-sg-38&catid=34. 
  6. ↑ "List'In MAE" (in fr). 2011. http://www.pyperpote.tonsite.biz/listinmae/index.php?option=com_content&view=category&id=41:hall-e-apres-guerresaint-exuperyaviation-civi&Itemid=54&layout=default&limitstart=20. 
  7. ↑ "Força Aérea Portuguesa – Museu do Ar – Sintra" (in Portuguese). Museu do Ar. http://www.emfa.pt/www/po/musar/s-003.006.001-aeronaves. 
  8. ↑ "1938 Schneider SG38 (EoN Primary)". http://www.shuttleworth.org/collection/eonprimary/. 
  9. ↑ Flugzeug-Typenbuch, Helmut Schneider, Hermann Beyer Verlag, Leipzig 1939



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