Schleicher ASH 25

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**Schleicher ASH 25**
An ASH 25 at Sion, Switzerland.
Type designation	ASH 25
Competition class	Open
Number built	250+
Crew	2
Length	8.97 m
Height	1.7 m
Cockpit width	0.71 m
Cockpit height	0.98 m
Wingspan	25 / 25.6 / 26 m
Wing area	16.31 / 16.46 / 16.62 m²
Aspect ratio	38.32 / 39.82 / 40.67
Wing profile:	HQ 17 and DU 84-132/V3
Empty mass	470 / 478 / 484 kg
Water ballast	120 kg
Maximum mass	750 kg
Minimum wing loading	34 kg/m²
Maximum wing loading	46.0 / 45.6 / 45.1 kg/m²
Maximum speed	280 km/h
Stall speed	75 km/h at 34 kg/m²
Minimum sink rate	0.42 m/s at 34 kg/m²
Best glide ratio	ca. 58 / 60 / 60
Roll rate	6.5 s at 95 km/h (-45° to 45°)
Engine type	Midwest (Wankel rotary)
Power	41 kW at 7750 rpm

The ASH 25 is a two-seater high performance Open Class glider manufactured by Alexander Schleicher, originally with a 25 metre wing span. 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.