Schleicher ASH 25

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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.

pecifications (with 25.6 metre wings)

aerospecs
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met or eng?= met

crew=Two
capacity=220 kg (264 lb) of water ballast
length m=8.97
length ft=29
length in=5
span m=25.6
span ft=84
span in=0
swept m=
swept ft=
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width m=
width ft=
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height m=1.7
height ft=5
height in=7
wing area sqm=16.5
wing area sqft=177
swept area sqm=
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rot area sqm=
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volume m3=
volume ft3=
aspect ratio= 39.8
wing profile= HQ 17 and DU 84-132/V3
empty weight kg=478
empty weight lb=1,050
gross weight kg=750
gross weight lb=1,650
lift kg=
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max speed kmh=280
max speed mph=175
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ceiling m=
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glide ratio= 60
climb rate ms=
climb rate ftmin=
sink rate ms= 0.42
sink rate ftmin= 83

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References

* [http://www.alexander-schleicher.de/ Alexander Schleicher GmbH & Co]
* [http://www.sailplanedirectory.com/ Sailplane Directory]
* [http://web.archive.org/web/20010331183137/http://www.ssa.org/Magazines/Johnson.asp 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