Schleicher ASW 27
Encyclopedia : S : SC : SCH : Schleicher ASW 27
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| Type designation | ASW 27 |
| Competition class | 15 metre |
| Number built | |
| Crew | 1 |
| Length | 6.55 m |
| Height | 1.30 m |
| Cockpit width | 0.64 m |
| Cockpit height | 0.80 m |
| Wingspan | 15 m |
| Wing area | 9.00 m² |
| Aspect ratio | 25 |
| Wing profile | DU 89-134/14 DU 94-086 M4 |
| Empty mass | 245 kg |
| Water ballast | 190 kg |
| Maximum mass | 500 kg |
| Wing loading | ca. 35 – 55.6 kg/m² |
| Maximum speed | 285 km/h |
| Rough air speed | 215 km/h |
| Stall speed | 70 km/h |
| Minimum sink rate | ca. 0.52 m/s |
| Best glide ratio | 48 at 100 km/h |
The ASW 27 is a 15 metre Class glider built of modern fibre reinforced composites. The manufacturer of the ASW 27 is Alexander Schleicher GmbH & Co. The 'W' indicates this is a design of the influential and prolific German designer Gerhard Waibel.
The ASW 27 has plain flaps, tall winglets in the 'B' version, 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 27 supersedes the ASW 20 in the manufacturer's production line. It does not have a version with wing extensions for 18 metres. This was a design decision to pursue an uncompromised 15 metre racer, as "future engine retrofits or later wingspan increases were specifically ruled out".
The recent introduction of the ASG 29 has given the ASW 27 a stablemate able to compete in the same class, although each has its own market segment, with the 29 presumably optimised for the larger 18 metre span and motorisation.
Sources
- [Alexander Schleicher GmbH & Co]
- [Sailplane Directory]
- Simons M, Segelflugzeuge 1965-2000, Equip, 2004
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