Kh-31

Source: Wikipedia, the free encyclopedia.
Kh-31
(NATO reporting name: AS-17 'Krypton')
Kh-31A
TypeMedium-range air-to-surface missile
Place of originSoviet Union
Service history
In service1988–present
Used byRussia, Serbia, China, India, Algeria, Egypt
Production history
ManufacturerTactical Missiles Corporation
(Zvezda-Strela before 2002)
Unit cost$550 000 (2010)[1]
Produced1982
Specifications
MassKh-31A :610 kg (1,340 lb)[2]
Kh-31P :600 kg (1,320 lb)[2]
LengthMod 1 : 4.7 m (15 ft 5 in)[3]
Mod 2 (AD/PD) : 5.3 m (17 ft 5 in)[4]
Diameter360 mm (14 in)[2]
Wingspan914 mm (36.0 in)[2]
WarheadPenetrating, armor-piercing.(Kh-31A)[5]
HE shaped charge[2]
Warhead weightKh-31A :94 kg (207 lb)[2]
Kh-31P :87 kg (192 lb) [2]
Detonation
mechanism
Impact
EngineSolid fuel rocket in initial stage, ramjet for rest of trajectory
PropellantKerosene
Operational
range
Kh-31A: minimum 7.5 km (4.0 nmi) and maximum 70 km (38 nmi) [5]
Kh-31P: up to 110 km (60 nmi; 70 mi)
inertial guidance with active radar homing[2]
Kh-31P: inertial with passive radar
Launch
platform
Both : Su-27SM, Su-30MKI, Su-25, Su-34, Su-35, MiG-29M, HAL Tejas, MiG-29K, Su-24M[6]
Kh-31A only : Su-33

The Kh-31 (

Su-57. It is capable of Mach 3.5 and was the first supersonic anti-ship missile that could be launched by tactical aircraft.[6]

There are several variants; the Kh-31 is best known as an anti-radiation missile (ARM) but there are also anti-ship and target drone versions. There has been talk of adapting it to make an "AWACS killer", a long-range air-to-air missile.[7]

Development

The proliferation of

sufficient range
that the launch platform is out of range of the SAMs, high speed to reduce the risk of being shot down and a seeker that can detect a range of radar types, but they do not need a particularly big warhead.

The Soviet Union's first ARM was developed by the

Su-24. It had Mach 3 capability and a 120 km (60 nmi) range, greater than the contemporary AGM-78 Standard ARM. The Kh-28 was succeeded by the Kh-58
in 1978, which has similar speed and range but replaces the dual-fuel rocket motor with a much safer RDTT solid propellant.

The development of more sophisticated SAMs such as the

anti-radar use. Zvezda started work on a long-range ARM and the first launch of the Kh-31 was in 1982.[6] It entered service in 1988[citation needed] and was first displayed in public in 1991, the Kh-31P at Dubai and the Kh-31A at Minsk.[6]

In December 1997 it was reported that a small number of Kh-31s had been delivered to China, but that "production had yet to begin".

Su-30MKK 'Flanker-G' aircraft to the Chinese. It seems that the original deliveries were of the original Russian model designated as X-31, to allow testing while the KR-1 model was being developed for licence production.[11]
Local production may have started by July 2005.

Russian development has accelerated since Zvezda was subsumed into the Tactical Missiles Corporation in 2002, with the announcement of the 'D' extended range models and the 'M' model mid-life updates (see Variants section below).

Design

L112E seeker

In many respects the Kh-31 is a miniaturised version of the P-270 Moskit (SS-N-22 'Sunburn') and was reportedly designed by the same man.[6] The missile is conventionally shaped, with cruciform wings and control surfaces made from titanium.[3] The two-stage propulsion is notable. On launch, a solid-fuel booster in the tail accelerates the missile to Mach 1.8[6] and the motor is discarded. Then four air intakes open up and as in the Franco-German ANS/ANF the empty rocket case becomes the combustion chamber of a kerosene-fuelled ramjet, which takes it beyond Mach 4.[7]

The L-111E seeker of the anti-radar version has a unique antenna, an

interferometer array of seven spiral antennas on a steerable platform.[7] The seekers delivered to China in 2001-2 were 106.5 cm (41.9 in) long, 36 cm (14 in) in diameter, and weighed 23 kg (51 lb).[12]

Operational history

The Kh-31P ARM entered service in the

MiG-31
.

In 2001 India bought Kh-31s for its

Su-30MKI; they appear to have bought 60 Kh-31A and 90 Kh-31P.[6] A few Kh-31P/KR-1's were delivered to China in 1997 but these were apparently for testing and development work. The Chinese ordered Russian missiles in late 2002 or early 2003, leading to 200 KR-1's in their inventory by 2005;[6] the Chinese press reported in July 2005 that Su-30MKK's of the 3rd Air Division had been equipped with the missiles.[12]

The

F-4 Phantom, and work was done on a kit to launch it from an F-16.[3]

According to some reports, the missile was used by the Russian Air Force during the South Ossetian conflict in 2008. In particular, it was reported that on August 10, 2008 a Russian Air Force Su-34 struck a Georgian

air defense radar near the city of Gori with Kh-31Ps. Georgian air defenses were disabled in order to avoid further losses.[15]

The Kh-31 was used by Russia during the

9K37 Buk systems were destroyed by Kh-31P and Kh-58 missiles during the war.[19]

Variants

Zhukovskiy
, 1999
  • Kh-31A
    sea-skimming as it approaches the target. The missile uses a penetrating warhead.[5]
  • Kh-31P[21] (Type 77P)[6] - passive radiation seeker head for use as an anti-radiation missile. Stays at high altitude throughout its flight, allowing higher speeds and increasing range to 110 km (60 nmi; 70 mi). The Kh-31P missile comes in three variants, each optimized against a different set of radiation sources, typically targeting enemy surface-to-air missile systems.[10]
  • Kh-31PM[22] - modernized version of the Kh-31P with increased range and new multi-band L-130 seeker sensor
  • Kh-31AD/Kh-31PD ("Kh-31 Mod 2") - increase range through increasing the fuselage from 4.70 m (15 ft 5 in) to 5.3 m (17 ft 5 in) long.[23] As of 2012, the Kh-31PD is serially produced.[24] Kh-31AD is in series production since 2013.[25]
  • Kh-31PK - installed non-contact fuse, maximum speed 900 m/s, range 120–160 km. Destined for Su-27SM, Su-30MK, Su-35. In serial production since 2009.[26]
  • MQM-8 Vandal but they bought the GQM-163 Coyote. Even with the additional equipment, the MA-31 was capable of Mach 2.7 and 15G manoevres in its anti-ship (sea-skimming) flight profile and Mach 3.5 in ARM mode at 48,000 ft (15,000 m).[3]
  • KR-1 - version of the Kh-31P exported to China in 1997.[10] It seems that Zvezda wanted to sell an initial batch of KR-1's to China, before the KR-1 went into production in China.[10] Rather than the original three seeker modules, the KR-1 has a single K-112E "export" seeker targeting D-F band (S band) emissions, and reportedly optimised for specific Taiwanese radars.[6]
  • YJ-91 Ying Ji 91 - Chinese missile based on the Kh-31P.[citation needed] They are also reported to have developed an anti-shipping version with an indigenous active seeker, and are looking to develop this for use in submarines. The name YJ-91 was already in use by 1997, and may have been a Chinese name for the original Russian missiles[10] designated X-31 by the Russians. By 2005, the name YJ-93 was being applied to missiles made in China,[12] but Western reports generally do not distinguish between YJ-91 and YJ-93.

An active/passive air-to-air version for use against slow-moving support aircraft, a so-called "AWACS killer", was announced at the 1992

MiG-35,[29]
but this is not confirmed.

Operators

Map with Kh-31 operators in blue

Current operators

Potential operators

  •  
    MiG-29B aircraft.[37]

Former operators

See also

Notes

Wikimedia Commons has media related to Zvezda Kh-31.

References

  1. ^ a b c annual report Tactical Missiles Corporation 2010.p. 92
  2. ^ a b c d e f g h i j Rosoboronexport Air Force Department and Media & PR Service, AEROSPACE SYSTEMS export catalogue (PDF), Rosoboronexport State Corporation, archived from the original (PDF) on 2007-10-30
  3. ^ a b c d e f Braucksick, Ken (2004-11-17), MA-31 Target Vehicle OVERVIEW, NDIA, archived from the original on 2011-05-22. Sales pitch from Boeing, has useful diagrams of flight profiles etc
  4. ^ "Tactical Missiles Corporation JSC". Archived from the original on 28 August 2018. Retrieved 23 December 2014.
  5. ^ a b c d e "Kh-31A Air-launched high-speed anti-ship missile". Rosoboronexport. Retrieved 1 January 2021.
  6. ^
    ISBN 978-1-55750-262-9
  7. ^ a b c d e "Missiles in the Asia Pacific" (PDF), Defence Today, Amberley, Queensland: Strike Publications: 67, May 2005, archived from the original (PDF) on 2009-01-26
  8. ^ "China's Military Strategy Toward the U.S." (PDF). www.uscc.gov. Archived from the original (PDF) on 2006-11-14.
  9. ^ "CRS Report for Congress, China: Ballistic and Cruise Missiles" (PDF). www.carnegieendowment.org. 2000-08-10. Retrieved 2007-01-26.
  10. ^ a b c d e Barrie, Douglas (1997-12-10), "China and Russia combine on KR-1", Flight International, p. 17
  11. ^ "Russia: - AS-17 Krypton (Kh-31)", Jane's Defence Weekly, 1998-09-09, retrieved 2009-01-27
  12. ^ a b c "China may be producing Kh-31P ARM", Jane's Missiles and Rockets, 2005-07-11, archived from the original on February 2, 2009
  13. ^ Contracts for Thursday, December 16, 1999, US Department of Defense, 1999-12-16
  14. ^ Buckley 2007
  15. ^ "- -34". Vedomosti.ru. Retrieved 23 December 2014.
  16. ^ "Russia said to be using Krypton missiles on its Su-30SM fighters in Ukraine".
  17. ^ "Russia's anti-radar missile demonstrates effectiveness of over 98% in Ukraine — source".
  18. ^ "Ukraine also can't intercept Russian Iskander-M, S-300 missiles, not just Kinzhal's".
  19. ISBN 978-1-5381-7067-0
    . Retrieved 26 August 2023.
  20. ^ "Kh-31A". Rosoboronexport.
  21. ^ "Kh-31P". Rosoboronexport.
  22. ^ "Kh-31PM". Researchgate.
  23. ^ "ОАО "Корпорация Тактическое Ракетное Вооружение"". Retrieved 23 December 2014.
  24. ^ "Корпорация "Тактическое ракетное вооружение" начала серийное производство ПРР X-31ПД". Retrieved 18 October 2015.
  25. ^ "Борис Обносов: Россия в ближайшие два года начнет экспорт двух типов ракет класса "воздух-поверхность"". Retrieved 23 December 2014.
  26. ^ "ТРВ выпускает противорадиолокационную ракету Х-31ПК". ВПК.name.
  27. ^ Buckley, Capt. Pat (2007-10-31), U.S. Navy Aerial Target Systems (Presented to 45th Annual NDIA Symposium) (PDF), US Navy, archived from the original (PDF) on 2011-05-22
  28. ^ "Kh-31 (AS-17) (Russian Federation), Air-to-air Missiles - Beyond Visual Range", Jane's Air-Launched Weapons, 2004-11-18, retrieved 2009-01-27
  29. ^ "Russia's MiG-35 fighter jet beefed up with new, long-range missiles". 23 November 2017.
  30. ^ a b "Trade Registers".
  31. ^ Chin, Jeremy (24 October 2018). "Egypt Shows Kh-31 Missile Paired with MiG-29". CSIS Missile Threat. Archived from the original on 24 October 2018. Retrieved 29 October 2018.
  32. ^ Bozinovski, Igor (23 October 2018). "Egypt shows MiG-29 with Kh-31 missiles". IHS Jane's 360. Skopje. Archived from the original on 23 October 2018. Retrieved 29 October 2018.
  33. ^ 2011 Annual Report of Tactical Missile Corporation, "BMPD - Портфель экспортных заказов КТРВ". Archived from the original on 2012-08-21. Retrieved 2013-07-31.
  34. ^ "ЦАМТО / Новости / ВВС Индии подписали контракт на закупку в России свыше 700 авиационных управляемых ракет". armstrade.org.
  35. ^ annual report Tactical Missiles Corporation 2009, pp. 77, 92
  36. ISBN 978-1-911628-18-7
    .
  37. ^ "TENDER NOTICE" (PDF). dgdp.gov.bd. Directorate General of Defence Purchase. 19 January 2021. Archived from the original (PDF) on 28 January 2021. Retrieved 22 January 2021.

Sources

  • Gordon, Yefim (2004), Soviet/Russian Aircraft Weapons Since World War Two, Hinckley, England: Midland Publishing,
    ISBN 1-85780-188-1
Retrieved from "https://en.wikipedia.org/w/index.php?title=Kh-31&oldid=1214755206"
This page is based on the copyrighted Wikipedia article: Kh-31. Articles is available under the CC BY-SA 3.0 license; additional terms may apply.Privacy Policy