A requirement for a twin-engined light utility transport was issued by the Chinese government in November 1974. The Y-11 was proposed in April 1974, and the design was begun in January 1975. Design of the Y-11, under Xiong Wenjie, was completed at Harbin in June 1975 and prototype construction started immediately. The static test article completed its test cycle on 19 December 1975 and the first flight of the prototype followed soon after on 30 December 1975. Production started on 3 April 1977 with at least fifty aircraft known to have been built before production stopped in favour of the Harbin Y-12.[1]
Variantsedit
Y-11 : Twin-engined STOL utility transport aircraft,[1] designed for agriculture and geological survey.
Y-11B : (I) is Fitted with advanced avionics and powered by 350 hp Teledyne -Continental TSIO-550-B air-cooled flat six piston engines.[1] Type (II) was canceled. Later, the only flyable one was used for geological survey.
Y-11 agricultural aircraft : Fitted with a hopper or tank in the cabin on the centre of gravity, dispensing chemicals through a dust spreader, spraybars or atomisers on the wing trailing edges.[1]
Y-11 Geological Survey aircraft : At least one aircraft fitted with a large toroidal sensor on the port wing-tip and a cigar shaped sensor on the starboard wing-tip.[1]
Y-11T : The initial designation of the Prototype Harbin Y-12, a redesigned plane fitted with Pratt & Whitney PT6A-11 turboprop engines driving three-bladed Hartzell HC-B3TN-3B propellers.[1]
^Taylor, John W.R. Jane's All The World's Aircraft 1982–83. London:Jane's Yearbooks, 1982. pp. 39–40. ISBN0-7106-0748-2.
External linksedit
Wikimedia Commons has media related to Harbin Y-11.
Specs & Photo at Flugzeuginfo.net
May 02, 2024
harbin, nato, reporting, name, chan, high, wing, twin, engine, piston, utility, geological, survey, aircraft, built, harbin, aircraft, manufacturing, corporation, hamc, chinese, aviation, museum, role, utility, aircraft, manufacturer, harbin, aircraft, manufac. The Harbin Y 11 NATO reporting name Chan is a high wing twin engine piston utility and geological survey aircraft built by Harbin Aircraft Manufacturing Corporation HAMC 1 Harbin Y 11 Y 11 in the Chinese Aviation Museum Role utility aircraft Manufacturer Harbin Aircraft Manufacturing Corporation Designer Harbin Aircraft Manufacturing Corporation 1 First flight December 30 1975 1 Status Out of production Primary user CAAC Airlines Number built ca 50 1 Contents 1 Development 2 Variants 3 Operators 3 1 Former Operators 4 Incidents And Accidents 5 Specifications 6 References 7 External linksDevelopment edit nbsp Y 11 at Beijing Civil Aviation Museum A requirement for a twin engined light utility transport was issued by the Chinese government in November 1974 The Y 11 was proposed in April 1974 and the design was begun in January 1975 Design of the Y 11 under Xiong Wenjie was completed at Harbin in June 1975 and prototype construction started immediately The static test article completed its test cycle on 19 December 1975 and the first flight of the prototype followed soon after on 30 December 1975 Production started on 3 April 1977 with at least fifty aircraft known to have been built before production stopped in favour of the Harbin Y 12 1 Variants editY 11 Twin engined STOL utility transport aircraft 1 designed for agriculture and geological survey Y 11B I is Fitted with advanced avionics and powered by 350 hp Teledyne Continental TSIO 550 B air cooled flat six piston engines 1 Type II was canceled Later the only flyable one was used for geological survey Y 11 agricultural aircraft Fitted with a hopper or tank in the cabin on the centre of gravity dispensing chemicals through a dust spreader spraybars or atomisers on the wing trailing edges 1 Y 11 Geological Survey aircraft At least one aircraft fitted with a large toroidal sensor on the port wing tip and a cigar shaped sensor on the starboard wing tip 1 Y 11T The initial designation of the Prototype Harbin Y 12 a redesigned plane fitted with Pratt amp Whitney PT6A 11 turboprop engines driving three bladed Hartzell HC B3TN 3B propellers 1 Operators edit nbsp China China Flying Dragon Special Aviation Corp Former Operators edit nbsp China CAAC Airlines operated 41 Harbin Y 11 from 1976 to 1988 Incidents And Accidents editOn June 19 1999 a Harbin Y 11 operated by Xinjiang General Aviation crash landed after it struck power cables during a crop spraying mission Specifications editData from Jane s All The World s Aircraft 1982 83 2 General characteristicsCrew 2 Capacity 7 8 passengers or 900 kg 1 984 lb chemicals or 900 L 200 imp gal 240 US gal chemicals Length 12 02 m 39 ft 5 in Wingspan 17 00 m 55 ft 9 in Height 4 64 m 15 ft 3 in Wing area 34 00 m2 366 0 sq ft Aspect ratio 8 5 1 Airfoil NACA 4412 Empty weight 2 050 kg 4 519 lb Max takeoff weight 3 250 kg 7 165 lb Fuel capacity 285 L 63 imp gal 75 US gal Powerplant 2 Huosai 6A 9 cylinder air cooled radial engine 213 kW 285 hp each Propellers 2 bladed variable pitch propellers 2 40 m 7 ft 10 in diameter Performance Maximum speed 220 km h 140 mph 120 kn Cruise speed 175 km h 109 mph 94 kn 65 power Stall speed 105 km h 65 mph 57 kn flaps down Range 995 km 618 mi 537 nmi max fuel Endurance 7 hr 20 min Service ceiling 4 000 m 13 000 ft Rate of climb 4 10 m s 807 ft min References editNotes a b c d e f g h i j Gordon Yefim amp Komissarov Dmitry Chinese Aircraft Hikoki Publications Manchester 2008 ISBN 978 1 902109 04 6 Taylor John W R Jane s All The World s Aircraft 1982 83 London Jane s Yearbooks 1982 pp 39 40 ISBN 0 7106 0748 2 External links edit nbsp Wikimedia Commons has media related to Harbin Y 11 Specs amp Photo at Flugzeuginfo net Retrieved from https en wikipedia org w index php title Harbin Y 11 amp oldid 1142616011, wikipedia, wiki, book, books, library,
