Antonov A-15
| A-15 | |
|---|---|
| |
| Antonov A-15 registered in the Czech Republic | |
| Role | Glider |
| National origin | USSR |
| Manufacturer | Antonov |
| Designer | Oleg Antonov |
| First flight | 26 March 1960 |
| Number built | 350 |
The Antonov A-15 is a Soviet mid-wing, V-tailed single-seat, FAI Open Class glider that was designed by Oleg Antonov and produced by Antonov.[1]
Design and development
[edit]The A-15 was a follow-on design, based on the bureau's experience gained with the A-11 and A-13 gliders. This new open class design quickly proved its worth as a record-setter.[1]
The aircraft is made from aluminium. Unusually for a Cold War Soviet aircraft, its 17 m (55.8 ft) span wing employs an American NACA 64-618 airfoil at the wing root, transitioning to an NACA 64-616 section at the wingtip. The A-15 carries 50 kg (110 lb) of water ballast. The landing gear is a retractable monowheel.[1][2]
A total of 350 A-15s were built.[1]
Operational history
[edit]The A-15 was used to set many world records, including a world goal distance record of 714.023 km (444 mi), flown in June 1960.[1]
In August 2011, there was one A-15 registered with the Federal Aviation Administration in the United States.[3]
Specifications (Antonov A-15)
[edit]Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[4] Sailplane Directory[1]
General characteristics
- Crew: one
- Length: 7.2 m (23 ft 7 in)
- Wingspan: 17 m (55 ft 9 in)
- Height: 1.15 m (3 ft 9 in) at cockpit
- Wing area: 12 m2 (130 sq ft)
- Aspect ratio: 24
- Airfoil: Root: NACA 643618, Tip: NACA 633616
- Empty weight: 273 kg (602 lb)
- Gross weight: 380 kg (838 lb)
Performance
- Stall speed: 55 km/h (34 mph, 30 kn)
- Never exceed speed: 250 km/h (160 mph, 130 kn)
- Rough air speed max: 250 km/h (155.3 mph; 135.0 kn)
- Aerotow speed: 140 km/h (87.0 mph; 75.6 kn)
- Winch launch speed: 120 km/h (74.6 mph; 64.8 kn)
- g limits: +7.5 -3 at 250 km/h (155.3 mph; 135.0 kn)
- Maximum glide ratio: 40 at 100 km/h (62.1 mph; 54.0 kn)
- Rate of sink: 0.6 m/s (120 ft/min) at 90 km/h (55.9 mph; 48.6 kn)
- Wing loading: 31.6 kg/m2 (6.5 lb/sq ft)
See also
[edit]Related development
Related lists
Notes
[edit]- ^ a b c d e f Activate Media (2006). "A-15 Antonov". Archived from the original on 29 August 2012. Retrieved 8 August 2011.
- ^ Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". Archived from the original on 19 July 2011. Retrieved 8 August 2011.
- ^ Federal Aviation Administration (August 2011). "Make / Model Inquiry Results". Archived from the original on 17 September 2012. Retrieved 15 August 2011.
- ^ 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. 245–246.
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. 245–246.
- Activate Media (2006). "A-15 Antonov". Archived from the original on 29 August 2012. Retrieved 8 August 2011.
- Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". Archived from the original on 19 July 2011. Retrieved 8 August 2011.
- Federal Aviation Administration (August 2011). "Make / Model Inquiry Results". Archived from the original on 17 September 2012. Retrieved 15 August 2011.
External links
[edit]
