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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 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.
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