The ASH 25 is a two-seater high performance
Open Class glider
Glider may refer to:
Aircraft and transport Aircraft
* Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight
** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...
manufactured by
Alexander Schleicher from 1986 until September 2008, originally with a 25-metre
wingspan
The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...
. It was superseded in production by the
ASH 30.
Design and development
In 1984, designer
Martin Heide Martin may refer to:
Places
* Martin City (disambiguation)
* Martin County (disambiguation)
* Martin Township (disambiguation)
Antarctica
* Martin Peninsula, Marie Byrd Land
* Port Martin, Adelie Land
* Point Martin, South Orkney Islands
Austr ...
(the 'H' in the type designation) combined the wing of the
World Championship winning single-seater
Schleicher ASW 22
The ASW 22 is an Open Class glider built by Alexander Schleicher GmbH & Co which first flew in 1981. The 'W' in the designation indicates that this is a product of the German designer Gerhard Waibel. An ASW 22 broke the world 750 km trian ...
with a fuselage derived from the
Akaflieg Stuttgart fs31 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
Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft' ...
.
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
The Wankel engine (, ) is a type of internal combustion engine using an Eccentric (mechanism), eccentric rotary combustion engine, rotary design to convert pressure into rotating motion. It was invented by German engineer Felix Wankel, and desi ...
.
Variants
;ASH 25:A 25m Open class glider, 25.6m or 26m wingspan when fitted with option winglets.
;ASH 25E:Self-sustaining version with a 24 hp
Rotax 275
The Rotax 275 is a , single-cylinder, two-stroke aircraft engine, built by BRP-Rotax GmbH & Co. KG of Austria for use in Self-launched Gliders.
Design
The Rotax 275 is a single-cylinder two-stroke engine with an air-cooled cylinder head and ...
engine
;ASH 25M:Self-launching version with a 60 hp
AE50R engine. Both the ASH 25 and ASH 25E can be converted to the ASH 25M by the manufacturer.
;ASH 25 Mi:Self-launching version with a 60 hp
IAE50R-AA engine. The ASH 25, ASH 25E and ASH 25M can be converted to the ASH 25Mi by the manufacturer.
;ASH 25J:Self-launching version with a je
engine;ASH 25EB:Self-launching version with a
Rotax 535C
The Rotax 535 is an Austrian aircraft engine, that was designed and produced by Rotax of Gunskirchen for use in motor gliders.European Aviation Safety Agency, (26 February 2010)Type Certificate Data Sheet Number: E.209 retrieved 24 September 2015
...
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)
See also
References
Further reading
*
*
External links
Schleicher websiteSailplane Directory
{{Schleicher
1980s German sailplanes
ASH 25
Motor gliders
T-tail aircraft
Shoulder-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1986