The Schneider ES-59 Arrow is a sailplane designed and manufactured in Adelaide, South Australia in the early 1960s. The Arrow was manufactured with a one-piece wing of 13.23 metres span. It was the first Australian-built sailplane to compete in the World Gliding Championships, 1963 in Argentina. The Arrow has wood/fabric wings and tail and a wood fuselage. It has a fixed main wheel and a nose skid.
| ES-59 Arrow | |
|---|---|
| Role | Sailplane |
| National origin | Australia |
| Manufacturer | Schneider Pty Ltd |
| Designer | Edmund Schneider |
| First flight | 14 April 1962 |
| Number built | 10 |
| External image | |
|---|---|
 Schneider ES-59 “Arrow” |
Specifications
editData from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[1]
General characteristics
- Crew: 1
- Length: 6.8 m (22 ft 4 in)
- Wingspan: 13.24 m (43 ft 5 in)
- Wing area: 11 m2 (120 sq ft)
- Aspect ratio: 16
- Airfoil: Root: NACA 63 618, Mid: NACA 63 614, Tip: Joukowsky 12% mod.
- Empty weight: 170 kg (375 lb)
- Gross weight: 280 kg (617 lb)
Performance
- Stall speed: 59.5 km/h (37.0 mph, 32.1 kn)
- Never exceed speed: 238 km/h (148 mph, 129 kn)
- Rough air speed max: 138.5 km/h (86.1 mph; 74.8 kn)
- Aerotow speed: 130 km/h (80.8 mph; 70.2 kn)
- Winch launch speed: 115 km/h (71.5 mph; 62.1 kn)
- Terminal velocity: with full airbrakes 232 km/h (144 mph; 125 kn)
- g limits: +5 -2.5 at 138.5 km/h (86.1 mph; 74.8 kn), +4 -0 at 250 km/h (155.3 mph; 135.0 kn)
- Maximum glide ratio: 27.8 at 76 km/h (47.2 mph; 41.0 kn)
- Rate of sink: 0.73 m/s (144 ft/min) at 68 km/h (42.3 mph; 36.7 kn)
- Wing loading: 25.5 kg/m2 (5.2 lb/sq ft)
See also
edit
Related development
References
edit- ^ Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 28–29.
Bibliography
edit- Sailplane Directory. Schneider. Online. October 7, 2007.
- Hardy, Michael (1982). Gliders and Sailplanes of the World. Shepperton: Ian Allan. p. 99.
- Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 28–29.