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ASW 28
	ASW 28-18
Role	Standard-class sailplane
National origin	Germany
Manufacturer	Schleicher
Designed by	Gerhard Waibel
First flight	ca. 2000
Number built	>144

The ASW 28 is a Standard Class glider with a fifteen metre span built of modern fibre reinforced composites. The manufacturer of the ASW-28 is Alexander Schleicher GmbH & Co. The 'W' indicates this is a design of the influential and prolific German designer Gerhard Waibel. Serial production started in 2000.

As all Standard Class sailplanes, the ASW-28 does not have flaps or other lift-enhancing devices. It has tall winglets, a retractable undercarriage and a water ballast system. The structure is a complex composite of carbon, aramid and polyethylene fibre reinforced plastic. This permits a light structure with the strength to carry large amounts of water ballast, thus permitting the widest possible range of wing loadings for weak and strong soaring weather.

The ASW-28 supersedes the ASW 24 in the manufacturer's production line. It has - like its competitors Rolladen-Schneider LS8 and Schempp-Hirth Discus-2 - a version with wing extensions for the increasingly popular 18 metre Class, the ASW 28-18. The sustainer (non-self-launching) variant of the 18 metre version is the ASW 28-18 E. The sustainer uses a SOLO 2350 18hp 2-stroke engine.

[edit] Specifications (with 15 metre wings)

General characteristics

Crew: One
Capacity: 200 kg (440 lb) water ballast
Length: 6.59 m (21 ft 7 in)
Wingspan: 15 m (49 ft 3 in)
Height: 1.30 m (4 ft 3 in)
Wing area: 10.5 m² (113 ft²)
Aspect ratio: 21.4
Wing profile: DU 99-147 and DU 99-125
Empty weight: 240 kg (528 lb)
Gross weight: 525 kg (1,155 lb)

Performance

Maximum speed: 270 km/h (170 mph)
Maximum glide ratio: 45
Rate of sink: 0.56 m/s (110 ft/min)

[edit] See also

Comparable aircraft

Related lists

[edit] References

Alexander Schleicher GmbH & Co
Sailplane Directory
Simons M, Segelflugzeuge 1965-2000, Eqip, 2004