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The ASW 22 is an Open Class glider built by Alexander Schleicher GmbH & Co which first flew in 1981. The 'W' in the designation indicates that this is a product of the German designer Gerhard Waibel. An ASW 22 broke the world 750 km triangle speed record in 1985 and ASW 22s have won first place in six World Gliding Championships.

ASW 22
Schleicher ASW22 flying in wave out of Minden NV
Role	Open-class sailplane Type of aircraft
National origin	Germany
Manufacturer	Schleicher
Designer	Gerhard Waibel
First flight	8 July 1981
Number built	87

Design

The ASW 22 is the successor to the ASW 17. It first flew as a 22-metre glider. The span was later increased to 25 metres for the ASW 22B with a modified inner wing section and flaperons similar to the ASW 20. It uses a Horstmann and Quast wing profile on the inner section with underwing tubes to collect high-pressure air which is then expelled through turbulator holes in the bottom wing skin ahead of the flap and aileron hinge line to prevent the separation of the laminar flow. The ASW 22 has a two-wheel retractable undercarriage.

Variants

ASW 22

Open Class high-performance sailplane; 22 or 24 metre span

ASW 22M

First motorized self-launching version with 22/24 m span, Rotax 505A engine

AS 22-2

The prototype of the ASH 25, which combined the wing of the ASW 22 with a two-seat fuselage[1]

ASW 22B

Span increased to 25 m

ASW 22BL

Fitted with 26.4 m tips

ASW 22BE, BLE

self-launching versions with 49 hp Rotax 505A engine

ASW 22BLE 50R

self-launching version with 50 hp rotary engine

ASW 22DB

ETA biter A response to the Eta, from Gerhard Waibel and Dick Butler, derived from the ASW 22BL.[2]

Specifications (ASW 22BL)

Data from Jane's All the World's Aircraft 1988-89.[3]

General characteristics

• Crew: 1
• Length: 8.1 m (26 ft 7 in)
• Wingspan: 26.58 m (87 ft 2 in)
• Height: 1.66 m (5 ft 5 in)
• Wing area: 16.7 m² (180 sq ft)
• Aspect ratio: 38.3
• Airfoil: root:DFVLR HQ17-14.28; tip:Delft university DU84-132
• Empty weight: 465 kg (1,025 lb)
• Max takeoff weight: 850 kg (1,874 lb)
• Water ballast: 235 l (62 US gal; 52 imp gal)

Performance

• Stall speed: 65 km/h (40 mph, 35 kn)
• Never exceed speed: 280 km/h (170 mph, 150 kn)
• g limits: +5.3 -2.65
• Maximum glide ratio: 62 at 95 km/h (51 kn; 59 mph)
• Rate of sink: 0.41 m/s (81 ft/min) at 67 km/h (36 kn; 42 mph)
• Wing loading: 33.4 kg/m² (6.8 lb/sq ft)

See also

Related development

• Schleicher ASH 25

Aircraft of comparable role, configuration, and era

• Schempp-Hirth Nimbus 4

Related lists

• List of gliders

References

Further reading

• "Specification ASW 22 BL / BLE (english)" (PDF). Alexander Schleicher GmbH & Co. Segelflugzeugbau. July 2003. Retrieved 4 August 2014.
• Milgram, Fred Thomas; Judah; translator; contributor (1999). Fundamentals of sailplane design (3rd ed.). College Park, MD: College Park Press. ISBN 978-0966955309. {{cite book}}: |last2= has generic name (help)
• Simons, Martin (2005). Sailplanes 1965-2000 (2nd revised ed.). Königswinter: EQIP Werbung und Verlag G.m.b.H. ISBN 978-3-9808838-1-8.

External links

• Schleicher website
• Photograph
• Sailplane Directory

На других языках

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[de] Schleicher ASW 22

Die Schleicher ASW 22 ist ein einsitziges Hochleistungs-Segelflugzeug der Offenen Klasse aus kohlenstofffaserverstärktem Kunststoff. Konstrukteur ist Gerhard Waibel, Hersteller Alexander Schleicher. Sie wurde erstmals 1981 gebaut; der Erstflug fand am 4. Juli 1981 statt.[2]

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- [en] Schleicher ASW 22

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[fr] Alexander Schleicher ASW 22

L'Alexander Schleicher ASW 22 est un planeur allemand de Classe Libre, construit essentiellement à base de fibre de carbone et de Kevlar, dessiné par Gerhard Waibel. Ce monoplace, destiné à succéder à l'ASW 17, a effectué son premier vol le 8 juillet 1981.

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