Wassmer WA-26
| Wassmer WA-26 | |
|---|---|
|
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| Type: | single-seat high - performance glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
July 21, 1967 |
| Number of pieces: |
85 |
The Wassmer WA-26 Squale ( German Hai ) is a single-seat competition glider made by the French manufacturer Wassmer Aviation in the 1960s. The wings are made of wood and have a span of 15 meters. The hull is made of GKF .
History and construction
From 1956 until at least 1964 Wassmer built the WA-20 series models with great success . These consist of wooden wings with NACA profiles and a tubular steel frame, which was initially completely covered with fabric and later covered with a combination of fabric covering and GRP . The WA-26 was an attempt by Wassmer to enter the high-performance sailplane market. Like the aircraft of the WA-20 series, they are equipped with wooden wings, but they have a Wortmann profile. The fuselage has a more aerodynamic shape and is made entirely of GRP.
The straight wings of the high- wing aircraft taper only slightly in the central part, which makes up about 60% of the wingspan. The outer wings taper more. The wings have a V-position over their entire length . The ailerons are located on the outer part of the wings. There are air brakes on the outer wing trailing edges . The wings consist of a single spar made of wood with wooden frames and are planked with 2.3 mm thick plywood .
The straight tapered pendulum rudder of the WA-26 is also made of wood and has a front edge covered with plywood and a fabric-covered rear part. The tail unit is mounted on top of the fuselage. Since the early models lacked feedback from the elevator, the WA-20M version was fitted with Flettner flaps . Vertical tail and rudder are also made of GRP.
The aircraft has a single retractable wheel that can be braked hydraulically and a small rigid tail spur. The pilot's seat is in a semi-recumbent position under a long canopy that opens to port.
The WA-26 had its maiden flight on July 21, 1967. Sales began in 1968 and in 1970 85 copies had already been ordered.
Versions
- WA-26 Squale - First version
- WA-26M Squale - Version with Flettner flaps on the elevator
- WA-26 CM Squale - Version without Flettner keys
- WA-26 CM Squale Marfa
- WA-26P Squale
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| length | 7.65 m |
| span | 15.0 m |
| height | 2.36 m |
| Wing area | 12.6 m² |
| Wing extension | 18.0 |
| Glide ratio | 38 |
| Slightest sinking | 0.65 m / s at 88 km / h |
| Empty mass | 228 kg |
| Max. Takeoff mass | 353 kg |
Web links
Individual evidence
- ^ John WR Taylor: Jane's All the World's Aircraft 1960-61 . Sampson Low, Marston & Co. Ltd, London 1960, p. 155 (English).
- ^ John WR Taylor: Jane's All the World's Aircraft 1966-67 . Sampson Low, Marston & Co. Ltd, London 1966, p. 389 (English).
- ↑ a b c d e Martin Simons: Gliders . 2nd Edition. tape 3 (1965-2000) . EQIP Werbung & Verlag GmbH, Königswinter 2005, ISBN 3-9808838-1-7 , p. 39-42 .
- ^ A b c Michael Hardy: Gliders & Sailplanes of the World . Ian Allen Ltd, London 1982, ISBN 0-7110-1152-4 , pp. 142 (English).
- ↑ data sheet WA-26P. British Gliding Association, accessed April 23, 2018 .
- ↑ Wassmer WA-26 Squale. j2mcl-planeurs.net, accessed on April 21, 2018 (French).
