 |
|
By
Wikipedia,
the free encyclopedia,
http://en.wikipedia.org/wiki/Harbin_Y-12
The Harbin Y-12 is a high wing twin-engine turboprop utility aircraft built by Harbin Aircraft Manufacturing Corporation (HAMC).
Design and development
The Y-12 started life as a development of the Harbin Y-11 airframe. The design featured numerous improvements including a redesigned wing with a supercritical aerofoil section, a larger fuselage and bonded rather than riveted construction.
The first prototype flew on 14 July 1982, followed by about 30 production T-12 I aircraft before a revised version was produced. This was designated the Y-12 II, which featured more powerful engines and removal of leading edge slats, first flying on 16 August 1984 and receiving Chinese certification in December of the following year. The powerplants are two Pratt & Whitney Canada PT6A-27 turboprops with Hartzell props. The Y-12 has a maximum payload of 5,700 kg (12,600 lb) with space for 17 passengers (2 crew). The aircraft is operated by China, several other countries in the region and in the South Pacific as a light commuter and transport aircraft.
Variants
- Y-12 I : Twin-engined STOL utility transport aircraft, powered by two 500-shp (373-kW) Pratt & Whitney Canada PT6A-11 turboprop engines. First production version.
- Y-12 II : Fitted with the more powerful engines.
- Y-12 IV : Improved version. Revised wingtips (span increased to 19.2 m (63 ft) and increased take off weight. 19 passengers.
- Twin Panda : Powered by two Pratt & Whitney Canada PT6A-34 turboprop engines.
Operators
Military operators
 Cambodia
 People's Republic of China
 Eritrea
 Guyana
 Iran
 Kenya
 Mauritania
 Mongolia
 Namibia
 Pakistan
 Peru
 Sri Lanka
 Tanzania
 Uganda
 Zambia
Governmental operators
- People's Republic of China
Civil operators
 Bangladesh
- People's Republic of China
 Fiji
 Kiribati
 Vanuatu
 Laos
 Malaysia
- Mongolia
 Nepal
 Tonga
Specifications (Y-12 (II))
Data from Brassey's World Aircraft & Systems Directory 1999/2000
General characteristics
Performance
- Maximum speed: 328 km/h (177 knots, 204 mph) at 3,000m (9,840 ft) (max cruise)
- Cruise speed: 250 km/h (135 knots, 155 mph) at 3,000m (9,840 ft) (econ cruise)
- Range: 1,340 km (723 NM, 832 mi) at econ cruise, 45 min reserves
- Service ceiling: 7,000 m (23,000 ft)
- Rate of climb: 8.1 m/s (1,595 ft/min)
See also
Comparable aircraft
Related lists
Bibliography
External links
Text from Wikipedia is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply.
Published in July 2009.
Click here to read more articles related to aviation and space!
|
|
