Engineering:HESA Kowsar

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Short description: Iranian fighter aircraft
Kowsar
HESA Kowsar4.jpg
HESA Kowsar
Role Fighter, Advanced Fighter Trainer
Manufacturer Iran Aircraft Manufacturing Industrial Company (HESA)
First flight August 2018
Introduction 3 November 2018
Status In service
Primary user Islamic Republic of Iran Air Force
Number built 4
Developed from Northrop F-5
HESA Azarakhsh
HESA Saeqeh
Unveiling the HESA Kowsar
HESA Kowsar production line
HESA Kowsar production line

The HESA Kowsar (Persian: کوثر‎, also spelt Kosar)[1] is an Iranian fighter jet based on the American Northrop F-5.[2][3] The aircraft is equipped with new fourth generation avionics in combination with an advanced fire control system.[4][1]

Western analysts have described the plane to be inefficient as a weapon, but having potential for training a new generation of Iranian fighter pilots.[5] According to the Iranian state-media, this fighter jet has "advanced avionics" and multipurpose radar, and it was "100-percent indigenously made".[6] It also uses digital data networks, a glass cockpit, heads-up display (HUD), ballistic computers and smart mobile mapping systems.[citation needed]

Development

On November 3, 2018, there was a ceremony that inaugurated the launch of the Kowsar assembly line at the Iran Aircraft Manufacturing Industries Company (HESA) with at least seven being made.[7] President Hassan Rouhani was present as he inspected the Kowsar in the Defense Industry Day event celebration[8] in Isfahan.[9]

HESA Kowsar has 7 hardpoints with a total capacity of 3200 kg (7054 lbs) of armaments and also has a 20 mm cannon. It can carry up to 4 air to air Fatir missiles, a reverse engineering of Sidewinder missiles, or twelve 250 kg (550 lbs) bombs or five 450 kg (1000 lbs) bombs or two 900 kg (2000 lbs) bombs. Kowsar has an Italian Grifo radar (a Chinese model or its domestic production has been used) with a range of 93 km (57 miles) that can engage two targets simultaneously.[10]

There were reports of a crash by an Iranian-operated F-5 days after the Kowsar's existence was announced.[11]

Export

On November 26, 2018, Brigadier General Abdolkarim Banitarafi, head of Iran Aviation Industries Organization (IAIO), announced that Iran was ready to export the HESA Kowsar jet and had agreements with Russia, China and Indonesia.[citation needed]

Design

The Kowsar, like the Saegheh and the Azarakhsh, was made based on the frame of the American F-5.[12]

Variants

The Kowsar is produced in single and two-seater variants.[citation needed]

Operational history

On 25 June 2020, the Iranian Ministry of Defence and Armed Forces Logistics announced that three new Kowsar aircraft had been delivered to the Islamic Republic of Iran Air Force , in a ceremony in Esfahan. The images published showed the aircraft painted in non-combat colours.[13]

Reactions

Official

Israel's defense minister Avigdor Liberman told press that it was a "natural reaction to an economic crisis", adding "[t]he Iranians are feeling very pressured by the continued US sanctions and in reaction they are coming out with these things, but we also shouldn’t dismiss it". Ofir Gendelman, spokesperson of the prime minister's office tweeted "The Iranian regime unveils the Kowsar plane and claims that it is ‘the first 100% locally-manufactured Iranian fighter jet'. It boasts about its offensive capabilities. But I immediately noticed that this is a very old American war plane (it was manufactured in the ‘50s). It is from the F-5 class of jets which has not been in use for decades".[14]

However, according to Northrop Grumman, "approximately two-thirds of the original production F-5s remain operational in 26 countries, including the United States."[15]

Commentators

Alex Lockie opined that the aircraft "looks like a big joke", but its untold purpose –serving as a jet trainer and a light attack plane– could "save Iran's air force".[16]

According to Douglas Barrie, military aerospace senior fellow at the IISS, the Iranians have possibly made upgrades and changes to the Kowsar while keeping the basic F-5 jet frame.[17] He also suggests that while Iran can reverse engineer the jet frame, the problem lies in sourcing engines and avionics.[18]

Specifications

Data from [19]

General characteristics

  • Crew: 2
  • Length: 14.45 m (47 ft 5 in)
  • Wingspan: 8.13 m (26 ft 8 in)
  • Height: 4.08 m (13 ft 5 in)
  • Wing area: 17.28 m2 (186.0 sq ft)
  • Empty weight: 4,349 kg (9,588 lb)
  • Gross weight: 7,157 kg (15,778 lb)
  • Max takeoff weight: 9,312 kg (20,529 lb)
  • Powerplant: 2 × Owj turbojet engines, 15.5 kN (3,500 lbf) thrust each, 4,900 lbf (22 kN) in full afterburner.

Performance

  • Maximum speed: 1,700 km/h (1,100 mph, 920 kn)
  • Range: 1,100 km (680 mi, 590 nmi)
  • Combat range: 2,000 km (1,200 mi, 1,100 nmi) (with external fuel tanks and 20 minutes reserved fuel)
  • Ferry range: 2,900 km (1,800 mi, 1,600 nmi) (with 3 external fuel tanks)
  • Service ceiling: 15,800 m (51,800 ft)
  • Rate of climb: 175 m/s (34,400 ft/min)

See also

Related development

Aircraft of comparable role, configuration and era

Related lists

  • List of aircraft of the Iranian Air Force

References

  1. 1.0 1.1 "New Fighter Jet Unveiled By Iranian Military". Forces Network (British Forces Broadcasting Service). 21 August 2018. https://www.forces.net/news/new-fighter-jet-unveiled-iranian-military. 
  2. "Iran unveils new domestically-produced fighter jet". BBC. 21 Aug 2018. https://www.bbc.com/news/av/world-middle-east-45259586/iran-unveils-new-domestically-produced-fighter-jet. 
  3. "Eyeing U.S., Iran unveils new fighter jet". Reuters. August 22, 2018. https://www.reuters.com/video/2018/08/21/eyeing-us-iran-unveils-new-fighter-jet?videoId=456814443. 
  4. "European Defence Review magazine". 2018. https://www.edrmagazine.eu/project-kowsar-88. 
  5. Iran's New Warplane Seen Limited as Weapon, Useful for Training, Michael Lipin, Farhad Pouladi at globalsecurity.org, August 25, 2018
  6. "Iran starts mass-producing locally designed Kowsar fighter jet". 3 November 2018. https://www.aljazeera.com/news/2018/11/iran-starts-mass-producing-locally-designed-kowsar-fighter-jet-181103062235724.html. 
  7. "Iran launches production of F-5-derived Kowsar fighter - Jane's 360". https://www.janes.com/article/84295/iran-launches-production-of-f-5-derived-kowsar-fighter. 
  8. Dudley, Dominic (2018-08-21). "Iran's 'New' Fighter Jet Provokes Derision, As Observers Note Likeness To U.S. Jet From The '60s". https://www.forbes.com/sites/dominicdudley/2018/08/21/irans-new-fighter-jet/. 
  9. "Iran launches mass-production of Kowsar "fourth-generation" fighter jet". November 7, 2018. http://www.airrecognition.com/index.php/archive-world-worldwide-news-air-force-aviation-aerospace-air-military-defence-industry/global-defense-security-news/global-news-2018/november/4606-iran-launches-mass-production-of-kowsar-fourth-generation-fighter-jet.html. 
  10. "Military knowledge: Kosar fighter + pictures". 10 July 2020. https://iswnews.com/33135/%D8%AF%D8%A7%D9%86%D8%B4-%D9%86%D8%B8%D8%A7%D9%85%DB%8C-%D8%AC%D9%86%DA%AF%D9%86%D8%AF%D9%87-%DA%A9%D9%88%D8%AB%D8%B1-%D8%AA%D8%B5%D8%A7%D9%88%DB%8C%D8%B1/. 
  11. "Iranian F-5 jet crashes southwest Tehran days after unveiling native 'Kowsar' jet". 26 August 2018. http://www.kurdistan24.net/en/news/f2f63004-14e9-4c6e-9090-6829b868cf83. 
  12. AFP (2018-08-21). "Israel mocks Iran's 'indigenous' fighter jet as copy of obsolete F-5". https://www.timesofisrael.com/israel-mocks-irans-indigenous-fighter-jet-as-copy-of-obsolete-f-5/. 
  13. Binnie, Jeremy (25 June 2020), "Iran announces delivery of Kowsar jets, shows F-5Fs", Janes, https://www.janes.com/defence-news/news-detail/iran-announces-delivery-of-kowsar-jets-shows-f-5fs, retrieved 29 July 2020 
  14. "Israel mocks Iran's 'indigenous' fighter jet as copy of obsolete F-5", Times of Israel, 21 August 2018, https://www.timesofisrael.com/israel-mocks-irans-indigenous-fighter-jet-as-copy-of-obsolete-f-5/, retrieved 29 July 2020 
  15. "F-5 Tiger Fighter Jet". https://www.northropgrumman.com/what-we-do/air/f5-tiger/. "Approximately two-thirds of the original production F-5's remain operational in 26 countries, including the United States." 
  16. Lockie, Alex (2018-08-23). "Iran's new jet fighter looks like a big joke - but its real purpose could save Iran's air force". https://www.businessinsider.com/irans-kowsar-fighter-looks-like-a-joke-but-could-save-its-air-force-2018-8. 
  17. Reid, David (22 August 2018). "Military experts say Iran's new fighter jet is actually a US plane from the 1970s". https://www.cnbc.com/2018/08/22/military-experts-say-irans-new-fighter-jet-is-actually-a-us-plane-from-the-1970s.html. 
  18. "Iran's first indigenously developed fighter jet looks a lot like the American F-5". 21 August 2018. https://thedefensepost.com/2018/08/21/iran-kowsar-fighter-jet-f-5/. 
  19. "دانش نظامی: جنگنده کوثر + تصاویر". https://iswnews.com/33135/%d8%af%d8%a7%d9%86%d8%b4-%d9%86%d8%b8%d8%a7%d9%85%db%8c-%d8%ac%d9%86%da%af%d9%86%d8%af%d9%87-%da%a9%d9%88%d8%ab%d8%b1-%d8%aa%d8%b5%d8%a7%d9%88%db%8c%d8%b1/. 

External links