Schleicher ASH 25 Information & Schleicher ASH 25 Links at HealthHaven.com

ASH 25
Role	Open Class sailplane
National origin	Germany
Manufacturer	Schleicher
Designed by	Martin Heide
Number built	260+

The ASH 25 is a two-seater high performance Open Class glider manufactured by Alexander Schleicher until September 2008, originally with a 25 metre wingspan. Designer Martin Heide (the 'H' in the type designation) combined the wing of the World Championship winning single-seater Schleicher ASW 22 with fuselage derived from the Akaflieg Stuttgart FS-31 which had particularly low drag. The prototype was designated 'AS 22-2'. The span was increased in later versions to 25.6 or 26 metres with winglets.

A 'turbo' version was also developed, the ASH 25E, followed by the self-launching ASH 25Mi with a large retractable propeller and a Wankel engine. It was superseded in production by the ASH 30.

[edit] Specifications (with 25.6 metre wings)

General characteristics

Crew: Two
Capacity: 220 kg (264 lb) of water ballast
Length: 8.97 m (29 ft 5 in)
Wingspan: 25.6 m (84 ft 0 in)
Height: 1.7 m (5 ft 7 in)
Wing area: 16.5 m² (177 ft²)
Aspect ratio: 39.8
Wing profile: HQ 17 and DU 84-132/V3
Empty weight: 478 kg (1,050 lb)
Gross weight: 750 kg (1,650 lb)

Performance

Maximum speed: 280 km/h (175 mph)
Maximum glide ratio: 57
Rate of sink: 0.42 m/s (83 ft/min)

[edit] References

Alexander Schleicher GmbH & Co
Sailplane Directory
Johnson R, A Flight Test Evaluation of the ASH 25, Soaring, May 1988
Simons M, Segelflugzeuge 1965-2000, Equip, 2004
Thomas F, Fundamentals of Sailplane Design, College Park Press, 1999