Ch-58

Ch-58
General Information
Type	Air-to-surface missile
Local name	Ch-58
NATO designation	AS-11 kilter
Country of origin	Soviet Union / Russia
Manufacturer	КТРВ (Tactical Missile Corporation) / GosMKB Raduga
development	1972
Commissioning	1982
Working time	in service
Technical specifications
length	4800 mm
diameter	380 mm
Combat weight	640 kg
span	1450 mm
drive	Solid rocket engine
speed	Mach > 3.5
Range	60-250 km
Furnishing
steering	INS
Target location	Radar receiver
Warhead	149 kg fragmentation warhead with fire effect
Detonator	Laser proximity fuse
Weapon platforms	Planes
Lists on the subject

The Ch-58 ( Russian Х-58 , NATO code name AS-11 Kilter ) is an air-to-surface missile from Soviet production. It is used to combat ground-based radar systems.

development

The Ch-58 was developed as a successor to the Ch-28 , which was equipped with a liquid fuel engine . The aim was to develop an anti-radar guided missile that could reach a range of around 100 km with a solid rocket engine . Development began in 1972 in the Raduga design office in Moscow . The Mikojan-Gurewitsch MiG-25BM and the Sukhoi Su-24 should be used as the primary deployment platforms . The first flight attempts were made in 1977 with a modified Antonov An-12 . Finally, the Ch-58 was introduced to the Soviet Air Force in 1982 . The Ch-58 was presented to the public for the first time in 1989. The Ch-58 is the Russian equivalent of the American AGM-88 HARM .

technology

The Ch-58 is used to hold down the enemy air defense ( SEAD ). Your seeker switched to the frequency of the enemy radar and uses this to hit the radar position. For this purpose, the Ch-58 used the PRGS-58 seeker head. This has interchangeable modules which u. a. are tuned to the frequency bands of the anti-aircraft missiles Nike Hercules , Bloodhound , Hawk and Patriot .

The surface of the streamlined hull of the Ch-58 consists of a heat-resistant titanium - alloy . This alloy is heat resistant up to 400–500 ° C. An additional thermal insulation layer is applied to the tip of the guided weapon . Four control and stabilization surfaces are attached to the missile. The Ch-58 is powered by a high-energy dual-pulse solid rocket engine from OKB Soyuz .

To record the radar radiation, the emergency aircraft must be equipped with a special radar receiver. In the case of the MiG-25 , this is the Jaguar system integrated in the aircraft . The externally carried gondolas L-086A Fantasmagoria-A and L-086B Fantasmagoria-B are used in the Su-24 . The Metel gondola, which is carried externally, is used on the Su-17 and Su-22 . The radar receiver analyzes the radar radiation and determines the course data for the Ch-58 guided missiles. If there is enough target data, it is passed on to the SAU-58 navigation system of the missile. The missile can then be launched from a height range of 200–20,000 m and a speed range of Mach 0.47–2.35. From a starting altitude of 200 m, it has an operational range of 60 km. At a start at Mach  1.5, from an altitude of 18,000 m, this value is 250 km.

After the drop, there was a short period of non-propulsion. The rocket engine only ignites at a safe distance from the aircraft. After launch, the missile's trajectory describes a semi-ballistic curve. The Ch-58 flies towards the radar system with the help of the seeker head and the autopilot. If the radar system stops transmitting during this time, the Ch-58 will maintain the course it has taken and fly to the target with the aid of the inertial navigation platform. If the radar system resumes transmission, the passive radar search head switches on again immediately. Starting with the Ch-58U version , target acquisition can also take place after take-off. In this case, the Ch-58 will be launched into an area with no target position known. Once in the target area, the missile records radar emissions with the passive seeker head. If the radar radiation from a radar device is detected, it is attacked. If no target is detected, the missile explodes after a certain flight time by means of self-destruction. The warhead by means of the ROV 20 - laser to -Näherungszünders detonation accommodated. According to the manufacturer, the expected hit is around 80% and the scattering circle radius ( CEP ) is 10 m. The incendiary fragmentation warhead weighs 149 kg and contains 58.5 kg of explosives .

variants

• Ch-58 : 1st production version. Range 80–120 km.
• Ch-58U : 2nd series version with a new engine, improved PRGS-58M seeker head with the option of target acquisition after take-off. Range 120–160 km.
• Ch-58E : Version with improved electronics and broadband search head (1.2–11 GHz ). Range 80–245 km.
• Ch-58USchK : Version with 4.18 m long fuselage and foldable wings for use in weapon shafts, presented in 2012. With new 9B-7735K broadband search head. Range 80–245 km.
• Ch-58USchK IIR : Version with foldable wings for use in weapon bays , presented at MAKS 2015 . With additional IR camera with digital image processing. Range 80–245 km.
• Ch-58A : Prototype with active radar seeker in the K _u band, range 120–180 km.

Carrier aircraft

• Mikoyan-Gurevich MiG-25BM "Foxbat"
• Mikoyan-Gurewitsch MiG-31BM "Foxhound"
• Sukhoi Su-17M3 / M4 "Fitter"
• Sukhoi Su-20 "Fitter"
• Sukhoi Su-22M "Fitter"
• Sukhoi Su-24M "Fencer"
• Sukhoi Su-25UB "Frogfoot"
• Sukhoi Su-30M "Flanker"
• Sukhoi Su-57

Comparable ARM

• AGM-78 standard ARM
• AGM-88 HARM
• ALARM
• AS.37 Martel

Individual evidence

1. ↑ ^{a b} The air-to-ground guided missile system AS-11 Kilter DTIG - Defense Threat Information Group, August 1999
2. ↑ ^{a b} Michal Fiszer: Crimson SEAD. Journal of Electronic Defense (JED), January 2003.
3. ↑ ^{a b} airwar.ru , accessed on May 16, 2014
4. ↑ ^{a b} rbase.new-factoria.ru , accessed on May 16, 2014 (Russian)
5. ^ Horizon House, Journal of Electronic Defense Staff Horizon House: International Electronic Countermeasures Handbook, 2004 Edition, p. 149
6. ↑ ausairpower.net , accessed on May 16, 2014
7. ↑ Piotr Butowski: Russia is preparing a precision guidance revolution for its fast jet, strike, and bomber forces . Jane's International Defense Review, August 2014, United Kingdom, 2014.
8. ↑ MAKS 2015: KRTV adds IR seeker to Kh-58UShK anti-radiation missile - janes.com , accessed on August 31, 2015.