IAR 811

The IAR-811 was a Romanian trainer aircraft built in the late 1940s.[1] It was the first aircraft designed and built in Romania following the end of the Second World War.[2]

IAR 811
Role 2-seat aircraft
National origin Romania
Manufacturer Industria Aeronautică Română
First flight 1949
Number built 1
Variants IAR-813

The IAR-811 was designed by a team of designers at the Sovromtractor tractor factory at Brașov (formerly the Industria Aeronautică Română aircraft works) in 1949. It was a single-engined low-wing monoplane of all wooden construction. Its crew sat side by side under an enclosed canopy, and the aircraft was powered by a single 45 kW (60 hp) Train 6T engine. The only example made its first flight on 12 May 1949.[3] It was claimed to be very manoeuvrable, and have good handling, and it was reported that consideration was given to putting the type into production,[2] but the engine was no longer in production. The aircraft was developed into the IAR-813, which used the available and more powerful (120 kW (160 hp) Walter Minor 4 engine.[4]

Specifications

Data from Romanian Aeronautical Constructions 1905–1974[1]

General characteristics

  • Crew: 2
  • Length: 8.25 m (27 ft 1 in)
  • Wingspan: 10.4 m (34 ft 1 in)
  • Height: 2.2 m (7 ft 3 in)
  • Wing area: 17.3 m2 (186 sq ft)
  • Empty weight: 420 kg (926 lb)
  • Gross weight: 650 kg (1,433 lb)
  • Fuel capacity: 55 L (15 US gal; 12 imp gal)[5]
  • Powerplant: 1 × Train 6T 6-cylinder inverted air-cooled in-line piston engine, 45 kW (60 hp)
  • Propellers: 2-bladed fixed-pitch propeller

Performance

  • Maximum speed: 150 km/h (93 mph, 81 kn)
  • Cruise speed: 135 km/h (84 mph, 73 kn)
  • Stall speed: 65 km/h (40 mph, 35 kn)
  • Range: 450 km (280 mi, 240 nmi)
  • Service ceiling: 3,700 m (12,100 ft)
  • Time to altitude: 8 minutes to 1,000 metres (3,300 ft)[5]
  • Take-off run: 180 m (590 ft)
  • Landing run: 140 m (460 ft)

References
  1. Gugju, Ion; Gheorghe Iacobescu; Ovidiu Ionescu. Romanian Aeronautical Constructions 1905–1974. Brasov. pp. 222–223.
  2. "Post-War Roumanian". Flight. Vol. LVII, no. 2154. 6 April 1950. p. 424.
  3. Vlad 1998, pp. 9–10
  4. Bridgman 1958, p. 214
  5. Bridgman 1952, p. 150
  • Bridgman, Leonard (1952). Jane's All the World's Aircraft 1952–53. London: Sampson Low, Marston & Company, Ltd.
  • Bridgman, Leonard (1958). Jane's All the World's Aircraft 1958–59. London: Sampson Low, Marston & Company, Ltd.
  • Vlad, Danut (March–April 1998). "Out of the Ashes: The Romanian Aviation Industry Since 1945". Air Enthusiast. No. 74. pp. 9–19. ISSN 0143-5450.
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