Schleicher ASH 25

ASH 25
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Role	Open Class sailplane
National origin	Germany
Manufacturer	Schleicher
Designer	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.

Design and development

Designer Martin Heide (the 'H' in the type designation) combined the wing of the World Championship winning single-seater Schleicher ASW 22 with a 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 25 Mi with a large retractable propeller and a Wankel engine. It was superseded in production by the ASH 30.

Variants

ASH 25

Open class glider with 25m, 25,6m or 26m wingspan

ASH 25E

Self-sustaining version with a 24 hp Rotax 275 engine

ASH 25M

Self-launching version with a 60 hp AE50R engine

ASH 25 Mi

Self-launching version with a 60 hp IAE50R-AA engine

ASH 25J

Self-launching version with a jet engine

ASH 25EB

Self-launching version with a Rotax 535C engine, 27m wingspan and one-piece canopy

ASH 25EB/28

Self-launcher with one-piece canopy and 28m wingspan

Specifications (with 25.6 metre wings)

Data from

General characteristics

• Crew: 2
• 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 (178 sq ft)
• Aspect ratio: 39.8
• Airfoil: root:HQ 17; tip:DU 84-132/V3
• Empty weight: 478 kg (1,054 lb)
• Max takeoff weight: 750 kg (1,653 lb)
• Water ballast: 120 L (32 US gal; 26 imp gal)

Performance

• Never exceed speed: 280 km/h (174 mph; 151 kn)
• Maximum glide ratio: ca. 60:1
• Rate of sink: 0.42 m/s (83 ft/min)

See also

Related lists

• List of gliders

References

Further reading

External links

• Schleicher website
• Sailplane Directory