ICA IS-29

IS-29, IS-31, and IS-33
IS-29D2
Role	Club-class Sailplane
National origin	Romania
Manufacturer	ICA
Designer	Iosif Silimon
First flight	April 1970
Number built	>200

The ICA IS-29 was a sailplane built in Romania in the 1970s. The prefix IS comes from Iosif Silimon, the Romanian IAR (Industria Aeronautică Română) aeronautical engineer who designed it. The 15-metre (49 feet) single place sister of the IS-28 series, the IS-29D2 single-seater has retractable gear, camber-changing flaps and Hütter type airbrakes on the upper wing surface only. The T-tail has a fixed stabilizer and elevator. The –29D model is of all metal construction while the earlier –29B has wooden wings. Developments include 19 metre (62 ft) -29E2 and 20 m (66 ft) -29E3 versions and a flapless, fixed gear 16.5-metre (54 feet) ‘club’ model -29G.

The IS-29 was also produced in a motorglider version, designated the IS-29EM. This shared the low-set wings and three-point undercarriage of the IS-28M2, and the new wings of the IS-28MA.

Variants

• IS-29
  • IS-29B - wooden wings of 15-metre span
  • IS-29D
    • IS-29D2
      • IS-29D2 Club - Club-class version of IS-29D2
  • IS-29E - open class version with ballast tanks
    • IS-29E2 - version with 19-metre wings
    • IS-29E3 - version with 20-metre wings
  • IS-29EM - motorglider version
  • IS-29G - Club-class version with 16.5-metre wings
• IS-31 - IS-29 with 20-metre wings and linked flaps and ailerons
• IS-33 - IS-29 with tanks for 150 kg (300 lb) of water ballast

Specifications (IS-29D2)

General characteristics

• Crew: One pilot
• Length: 7.38 m (24 ft 3 in)
• Wingspan: 15.00 m (49 ft 3 in)
• Height: 1.68 m (5 ft 6 in)
• Wing area: 10.4 m² (112 ft²)
• Aspect ratio: 21.5
• Empty weight: 235 kg (518 lb)
• Gross weight: 360 kg (794 lb)

Performance

• Maximum speed: 225 km/h (140 (121 Kts) mph)
• Maximum glide ratio: 37:1 at 50 Kts
• Rate of sink: 0.61 m/s (120 ft/min)

References

• Soaring Society of America
• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 528. 
• Hardy, Michael (1982). Gliders and Sailplanes of the World. Shepperton: Ian Allan. pp. 54–55. 
• Coates, Andrew (1978). Jane's World Sailplanes and Motor Gliders. London: MacDonald and Jane's. p. 124. 
• Simpson, R. W. (1995). Airlife's General Aviation. Shrewsbury: Airlife Publishing. p. 342. 
• Jane's All the World's Aircraft 1977-78. London: Jane's Yearbooks. p. 608. 

Aircraft produced by Intreprinderea de Construcţii Aeronautice IS-3 • IS-8 • IS-10 • IS-11 • IS-12 • IS-13 • IS-23 • IS-24 • IS-28 • IS-29 • IS-30 • IS-31 • IS-32 • IS-33

IAR designation products Powered aircraft IAR CV 11 · IAR-12 · IAR-13 · IAR-14 · IAR-15 · IAR-16 · IAR-21 · IAR-22 · IAR-23 · IAR-24 · IAR-27 · IAR-37 · IAR-38 · IAR-39 · IAR-47 · IAR-79 · IAR-80 · IAR-81 · IAR-93 'Vultur' · IAR-99 'Soim' · IAR-109 'Swift' Series ICA (gliders and motor gliders) IAR-34 • IS-3 • IS-8 • IS-10 • IS-11 • IS-12 • IS-13 • IS-23 • IS-24 • IS-28 • IS-29 • IS-30 • IS-31 • IS-32 • IS-33 • IAR-46 · Under licence IAR MS-35 · IAR Potez 25 · IAR P11F · IAR P24E · IAR Fleet10G · IAR Nardi FN305 · IAR Messerschmitt 109G Series 300 (helicopters) IAR-316 · IAR-317 'Airfox' · IAR-330 'Puma' · IAR-330L 'Socat' · IAR KA 126 Series 800 IAR-811 · IAR-813 · IAR-814 · IAR-817 · IAR-818 · IAR-821 · IAR-822 · IAR-823 · IAR-824 · IAR-825 · IAR-826 · IAR-827 · IAR-828 · IAR-831 IAR Projects IAR-471  · IAR-95 IAR Engines IAR LD450  · IAR 4GI  · IAR 6G1 · IAR 5K · IAR 7K · IAR 9K · IAR 14K · IAR DB605 ·

Lists relating to aviation General Aircraft (manufacturers) Aircraft engines (manufacturers) Airlines (defunct) Airports Civil authorities Museums Registration prefixes Rotorcraft (manufacturers) Timeline Military Air forces Weapons Experimental Missiles Unmanned Accidents/incidents Commercial airliners (by location) Fatalities (by death toll) General aviation Military Records Airspeed Altitude Distance Endurance Firsts Most-produced aircraft