ICA IAR-35

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IAR-35
IAR-35 Acro.jpg
Role aerobatic glider
National origin Romania
Manufacturer Inteprinderea de Constructii Aeronautice (ICA), Brasov
First flight May 1986
Number built at least 4

The ICA IAR-35 is a Romanian glider designed and built in the 1980s primarily for aerobatics, though capable of general purpose use. Several production prototypes were constructed.

Design and development[edit]

The IAR-35 is an all-metal, single seat, short span glider developed for aerobatic flight. Its three spar shoulder wing, with metal ribs and bonded metal skinning, has a constant chord centre section and tapered outer panels. There is no dihedral on the centre section but 2° outboard. The whole trailing edge is occupied by all-metal, statically balanced ailerons, each fitted with an automatic trim tab. DFS (Schempp-Hirth) airbrakes extend both above and below the wings.[1]

Its fuselage is a metal semi-monocoque with aluminium alloy framing and duralumin skin. The cockpit is ahead of the wing with the pilot under a long, single piece Perspex canopy. On the underside, below the wing there is a monowheel, fitted with a brake, which retracts behind a pair of doors. The IAR-35 also has a fixed, semi-recessed tailwheel and a skid under the nose. The wing tips are protected by small, sprung balance wheels. Its fuselage becomes more slender behind the wing, mounting a conventional empennage with tall, straight edged, swept vertical surfaces and a dorsal fillet. The rudder is statically balanced and has a vertical trailing edge. A braced tailplane is mounted forward on the fin, a little above the fuselage, carrying similarly balanced elevators fitted with trim tabs.[1]

The IAR-35 first flew in May 1986.[1] Only a few were built but four remained on the Romanian civil register in 2010.[2]

Specifications[edit]

Data from Jane's All the World's Aircraft 1990/91[1]

General characteristics

  • Crew: One
  • Length: 6.47 m (21 ft 3 in)
  • Wingspan: 12.0 m (39 ft 4 in)
  • Height: 1.72 m (5 ft 8 in) over tail
  • Wing area: 10.80 m2 (116.3 sq ft)
  • Aspect ratio: 13.3
  • Airfoil: NACA 64-015 in centre section
  • Empty weight: 260 kg (573 lb) ±10 kg (22.0 lb)
  • Max takeoff weight: 380 kg (838 lb)

Performance

  • Maximum speed: 380 km/h (236 mph; 205 kn) smooth air
  • Maximum speed in rough air and design manoeuvring speed limit: 202 km/h (126 mph; 109 kn)
  • Stall speed: 86 km/h (53 mph; 46 kn)
  • g limits: +7.4/-7.0
  • Maximum glide ratio: 24 at 104 km/h (65 mph; 56 kn)
  • Rate of sink: 0.85 m/s (167 ft/min) minimum
  • Wing loading: 35.19 kg/m2 (7.21 lb/sq ft)

References[edit]

  1. ^ a b c d Lambert, M. (1990). Jane's All the World's Aircraft 1990-1991. London: Jane's Information Group. pp. 648–9. ISBN 07106 0908 6. 
  2. ^ Partington, Dave (2010). European registers handbook 2010. Air Britain (Historians) Ltd. ISBN 978-0-85130-425-0.