IAR-93 Vultur

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IAR-93 Vultur
IAR-93SC aircraft.jpg
IAR-93
General information
TypeGround attack aircraft
Low level interceptor
Manufacturer Avioane Craiova
DesignerINCAS Romania
VTI Yugoslavia
Primary user Romanian Air Force
Number built88
History
Manufactured1975–1992
Introduction date1975
First flightOctober 31, 1974
RetiredApril 9, 1998
Variants Soko J-22 Orao

The Avioane Craiova IAR-93 Vultur (Eagle) is a twinjet, subsonic, close support, ground attack and tactical reconnaissance aircraft with secondary capability as low level interceptor. Built as single-seat main attack version or combat capable two-seat version for advanced flying and weapon training, it was developed in 1970s by Romania and Yugoslavia to become more independent from Soviet equipment. The Romanian aircraft were built by I.R.Av. Craiova as IAR-93, and its Yugoslav counterpart by Soko as the Soko J-22 Orao. For Romania, the IAR-93 was intended to replace MiG-15s and MiG-17s in the fighter-bomber role.

Contents

Development

On May 20, 1971, Romania and Yugoslavia signed the governmental agreements for the YuRom R&D programme. The program managers were Dipl. Dr. Engineer Teodor Zamfirescu for the Romanian party and Colonel Vidoje Knežević for the Yugoslav party.

The requirements called for a light subsonic aircraft for ground attack and tactical reconnaissance missions and with low level air combat as a secondary capability. It was to be built on a simple structure, using locally produced equipment and avionics (but compatible with Western components), tough (able to operate on grass or damaged runways), easy to maintain, and reliable. The aircraft was of conventional twin-engine, high mounted wing monoplane configuration with all flying surfaces swept. The Rolls-Royce Viper was chosen as the powerplant, as SOKO had experience with licence-building this engine. It was originally intended that an afterburner would be developed for the Viper engines, but there were prolonged difficulties with this project, meaning that none of the pre-production aircraft featured it, and neither did early production examples. During the 1980s, both countries developed slightly different versions to take advantage of the afterburning engines that had since become available.

Flight testing

The Romanian single-seat prototype White 001 made its first flight, which lasted 21 minutes, on October 31, 1974, at Bacău [1] (simultaneously with the Yugoslav prototype at Batajnica Air Base). The aircraft was flown by Colonel Gheorghe Stănică. On September 20, 1979, the plane was lost when, during a test flight, both engines stopped, and the pilot ejected. This prompted modifications to the combustion chamber (including all aircraft already delivered).

On July 18, 1975 the aircraft was presented to Nicolae Ceauşescu on the Bacău airfield.

The DC (two-seat) prototype #003 first flew on January 23, 1977, and was lost on November 24, 1977, due to tail flutter. The left elevator broke off while in level flight at 500 metres (1,600 ft) altitude and 1,045 kilometres per hour (649 mph). The Martin-Baker Mk RU10J zero-zero ejection seats functioned well and the two test pilots ejected safely. After this event the aft fuselage structure was reinforced.

Prototype #004 crashed at Craiova Air Base on February 20, 1979, during an aerobatics demonstration. The pilot, Capt. Eng. Dobre Stan, did not manage to eject.

On August 23, 1979, three IAR-93 (#001, #002 and #005) were first presented to the public in flight during the military parade celebrating the national day of Romania at that time.

Variants

Operators

Romania

Lost aircraft

Data from Romanian press and partially from ejection-history.org.uk [2]

Retirement

Dismantled IAR-93 MB #204 DSCF6583 IAR93.JPG
Dismantled IAR-93 MB #204

Following the outbreak of the war in Yugoslavia and the UN embargo, the IAR-93 program ended in Romania in 1992, with several airframes in different stages of construction. Around 75 aircraft were still in service, a few of them being used for testing and research (#200 – first B model with afterburners, #600 (DC) – the only one fitted with canards).[ citation needed ]

The last IAR-93s were withdrawn and mothballed from the Romanian Air Force in 1998. Surviving airframes are stored at Deveselu (IAR-93A #116), Timișoara (IAR-93MB #214), and Craiova (about 60 aircraft), not flight worthy (engines and other equipment removed) and most of them are up for sale. Apparently 20 of them were scrapped until 2006, with the rest awaiting the same fate in 2007.[ citation needed ]

The J-22 Orao are still in service with the air force of Serbia. The last Yugoslav aircraft was delivered in February 1992, and the plant in Mostar was destroyed shortly after.[ citation needed ]

Aircraft on display

IAR-93 #205 on display in Orastie (Arsenal Park). IAR-93 Arsenal Park.jpg
IAR-93 #205 on display in Orăștie (Arsenal Park).

Specifications (IAR-93B)

IAR 93 at the Aviation Museum in Bucharest IAR 93 at Aviation Museum in Bucharest.JPG
IAR 93 at the Aviation Museum in Bucharest

Data fromAvioane Craiova SA, [1] INCAS - IAR 93 SOKO /VTJ - J - ORAO [4]

General characteristics

15.38 m (50 ft) two-seats

Performance

380 km (240 mi; 210 nmi) hi-hi-hi patrol with three 500 litre drop tanks, 45 min over target
450 km (280 mi; 240 nmi) lo-lo-hi with two rocket launchers, six 100 kg bombs and one 500 litre drop tank, 10 min over target
530 km (330 mi; 290 nmi) hi-hi-hi with four 250 kg bombs and one 500 litre drop tank, 5 min over target
690 m (2,260 ft) with brake parachute
1,520 m (4,990 ft) with brake parachute

Armament

Avionics

See also

Related development

Aircraft of comparable role, configuration, and era

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References

  1. 1 2 "IAR-93 History". Archived from the original on 2012-02-27. Retrieved 2009-09-28.
  2. "Chronological Listing of Romanian Losses & Ejections". Archived from the original on 2009-01-05. Retrieved 2009-12-17.
  3. "Orao weapon explodes". Flight Global. Retrieved 2023-10-22.
  4. "INCAS - IAR 93 SOKO /VTJ - J - ORAO". www.incas.ro. Retrieved 7 October 2019.
  5. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.