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 o ...
. It was superseded in production by the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 rotary design to convert pressure into rotating motion. It was invented by German engineer Felix Wankel, and designed by German engineer Hanns-Dieter Paschke. ...
.
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 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