| Kh-28 (NATO reporting name: AS-9 'Kyle') | |
|---|---|
 USAFEOD specialist disassembles presumed Kh-28 – Iraq 1991 | |
| Type | air-launchedanti-radiation missile |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1973–current |
| Used by | FSU,[1] Warsaw Pact,[1] India,[1] Iraq,[1] Vietnam[1] |
| Production history | |
| Designer | Alexander Yakovlevich Bereznyak |
| Manufacturer | MKB Raduga |
| Specifications | |
| Mass | 720 kg (1,590 lb)[2] |
| Length | 597 cm (19 ft 7 in)[2] |
| Diameter | 43 cm (16.9 in)[2] |
| Wingspan | 193 cm (6 ft 4.0 in)[2] |
| Warhead | Blast fragmentation[1] |
| Warhead weight | 160 kg (353 lb)[2] |
| Engine | Two-stage liquid-fuel rocket[2] |
Operational range | 110 km (59 nmi)[3] |
| Maximum speed | Mach 3.0[2] |
Guidance system | Inertial guidance withpassive radar seeker[1] |
Launch platform | Su-17M/Su-20/Su-22M, Su-24M, Tu-16, MiG-25BM, MiG-27, Tu-22M[4] |
TheKh-28 (Russian:Х-28;Nisan-28;NATO:AS-9 'Kyle') was the firstSovietanti-radiation missile (ARM) for tactical aircraft.[1] It entered production in 1973 and is still carried on someSukhoi Su-22s in developing countries but is no longer in Russian service.[1] Use of the Kh-28 was restricted by its weight, limited seeker head, bulk and fuelling requirements, and it was superseded by the smaller, solid-fuelKh-58 (AS-11 'Kilter') in the early 1980s.
Soviet offensive doctrine in the early 1960s assumed that widespread use of nuclear weapons would disable Western radar-based air defence systems throughelectromagnetic pulses (EMP) effects.[3] Consequently, they paid little attention to the development of ARMs.[3] However, in January 1963 the Berezniak design bureau (which becameMKB Raduga in 1967) was tasked with developing such a missile as part of the K-28P weapon complex based around a "Wild Weasel" version of theYak-28 'Brewer' bomber (hence -28; the 'K' stands for kompleks, P stands for protivradiolokatsyonny 'anti-radar').[3]
The main difficulty came in the design of the APR-28 guidance system undertaken by CKB-111 (later NPO Avtomatika).[3] This meant that the Kh-28 missile was not ready until the 1970s.[3] Flight trials were carried out on a Yak-28N, but by then the Yak-28 had ceased production and was perceived as obsolete, and the K-28P system was cancelled.[3] Instead the Kh-28 was adapted for use by standard attack aircraft, in particular theSu-24 'Fencer-A' and Su-17M 'Fitter-C'.[3]
The Kh-28 was the first liquid-fuel Soviet ARM and was quickly replaced by the solid-fuel Kh-58 missile, according to research from Dr. Carlo Kopp, the editor in chief of Air Power Australia.[5]
The design of the Kh-28 was similar to – but smaller than – Raduga'sKh-22 (AS-4 'Kitchen')[4] andKSR-5 (AS-6 'Kingfish') anti-shipping missiles.[2] The Su-24 could carry one under each wing, and used the onboardFilin ('Eagle Owl') targeting system.[3] The Su-17M could only carry one Kh-28 on the centreline, and used theMyetyel/Metel ('Blizzard') system in a pod under the right wing, later replaced by theVyuga ('Snowstorm') pod.[3]
The APR-28 seeker on the original Kh-28 could only target theMIM-14 Nike-Hercules andEnglish Electric Thunderbird SAM systems, although theFilin could recognise other frequencies.[3] The Kh-28M had an updated X-band seeker that could recognise theMIM-23 Hawk's AN/MPQ-33 and subsequent AN/MPQ-39target-illumination radars, and the AN/MPQ-34 low-leveltarget-acquisition radar.[1] Other seekers may have been produced.[1]
The propulsion system consists of a fuel tank and a separate tank for thered fuming nitric acid (RFNA) oxidiser. One problem was that the missile required fuelling just before flight, and not many airfields had the appropriate facilities.[2] Range is given variously as 80–95 km or 120 km.[2]
The Kh-28 entered service with the Soviet Air Force in 1973, and has been widely exported. It was cleared for use on the Su-17M/Su-20/Su-22M, Su-24M, Tupolev Tu-16, Mikoyan-Gurevich MiG-25BM, MiG-27 and Tupolev Tu-22M aircraft.[4] It was also tested on anAntonov An-12BLSEAD variant of the transport that could carry four of the missiles.[4]A missile believed to be a Kh-28 was captured in Iraq by US forces during the first Gulf War in April 1991. One man was burnt by RFNA from the oxidiser tank while he was making it safe.[6]
Libya from
Libya aviation arsenals
Azerbaijan
Georgia unknown, active or depot in stockage or not operational
Kazakhstan unknown, maybe active or on depot stockage
Ukraine unknown status or not operational
Belarus unknown, probably active or stockage in depot
Soviet Union passed on to successor states
Afghanistan
Hungary
Iraq[7]
Peru[8]
Poland
South Yemen[9]
