R-27 (air-to-air missile)
The Vympel R-27 missile (NATO reporting name AA-10 Alamo) is a medium-to-long-range air-to-air missile developed by the Soviet Union. It remains in service with the Russian Air Force and air forces of the Commonwealth of Independent States.
German Air Force MiG-29 firing an R-27
|Type||Medium-range, air-to-air tactical missile, anti-radiation missile|
|Place of origin||Soviet Union|
War in Donbass
Yemeni Civil War (2015–present)
Saudi Arabian-led intervention in Yemen
|Mass||253 kg (558 lb)|
|Length||4.08 m (13.4 ft)|
|Diameter||230 mm (9.1 in)|
|Warhead||blast/fragmentation, or continuous rod|
|Warhead weight||39 kg (86 lb)|
|radar-proximity and impact fuzes|
|Engine||High performance, w. directed-rocket motor|
Solid-fuel rocket motor
|Wingspan||772 mm (30.4 in)|
|R-27T: up to 40 km|
R-27R: up to 80 km
R-27P: up to 80 km
R-27ER: up to 130 km
R-27ET: up to 120 km
R-27EP: up to 130 km
R-27EA: up to 130 km
R-27EM: up to 170 km
|semi-active radar homing (A/C), active-radar-homing (R-27EA), infrared homing (B/D), passive radar (E/F)|
|Su-27, Su-30, Su-33, Su-34, Su-35, Su-37, F-14 (attempted by Iran, but failed), MiG-23, MiG-29, Yak-141, Su-57, local conversion as a surface-to-air missile in Yemen|
The R-27 is manufactured in infrared-homing (R-27T), semi-active-radar-homing (R-27R), and active-radar-homing (R-27EA) versions, in both Russia and Ukraine. The R-27 missile is carried by the Mikoyan MiG-29 and Sukhoi Su-27 fighters, and some of the later-model MiG-23MLD fighters have also been adapted to carry it. The R-27 missile is also license-produced in China, though the production license was bought from Ukraine instead of Russia.
- R-27R AA-10 Alamo-A, semi-active radar homing. Missile can be used at 20 to 25,000 meters altitude (launch platform or target). Effective kill range for a target at same altitude: 2 to 42.5 km head-on, 0.7 to 7.5 km tail-on. Maximum range: 73 km. Maximum allowed vertical separation between target and launch platform: +/− 10 km.
- R-27T AA-10 Alamo-B, infrared homing, passive homing using the Avtomatika 9B-1032 (PRGS-27) IR seeker head. Missile can be used at 20 to 25,000 meters altitude. Effective kill range for a target at same altitude: 2 to 33 km head-on, 0 to 5.5 km tail-on. Maximum range: 63 km. Maximum allowed vertical separation: +/−10 km.
- R-27ER AA-10 Alamo-C, the semi-active-radar homing extended-range version. Missile can be used at 20 to 27,000 meters altitude. Effective kill range for a target at same altitude: 2 to 65.5 km head-on, 0.7 to 16.5 km tail-on. Missile cannot be fired at altitude less than 3 km against a target with background earth, if launch range is less than 6 kilometers. Maximum range: 117 km. Maximum allowed vertical separation: 12 km.
- R-27ET AA-10 Alamo-D, the infrared-homing extended-range version, Weight 348 kg. Missile can be used at 20 to 27,000 meters altitude. Effective kill range: 2 to 52.5 km head-on, 0.7 to 12.5 tail-on. Maximum range: 104 km. Maximum allowed vertical separation: 12 km.
R-27R and ER variants can be used in any meteorological conditions. Launch can made at less than 5 g overload and less 50 deg/s roll rate. It is allowed to redesignate targets during flight, or sharing target illumination with other aircraft.
R-27T and ET variants can be used out of cloudiness, at least 15 degrees away from the bearing of sun, and 4 degrees away from the bearing of moon and ground-based head-contrasting conditions. In cases of maximum head-on range launches where lock-command cannot be utilised, missile can be fired in PPS: In this mode, missile will fly straight until achieves target lock. As missile lacks capability of maneuvering before lock, aircraft itself must maneuver so that missile will be pointed to no more than 15 degrees bearing of the target for confident capture by the IR seeker after launch. Equalising altitude is recommended but not required. On combat operations section of the Su-27 manual, this mode of usage is especially recommended for head-on usage for passive attacks at targets with 0 degrees approach angle (i.e. another fighter moving to intercept), leaving target unalerted to incoming missile. Launch can be made at 0 to 7 g, but limited to 6 g if roll induced slip is more than 2× diameter of the ball.
- R-27P AA-10 Alamo-E, passive radar homing with a range of up to 72 km.
- R-27EP AA-10 Alamo-F, a longer range passive anti-radiation missile with a range of up to 70 nm (110 km)
- R-27EA, active radar homing with 9B-1103K active seeker, range of >130 km.
- R-27EM, active radar homing with 9B-1103K active seeker, range of >170 km.
Ethiopia and Eritrea
In the 1999 Eritrean-Ethiopian War, Eritrean MiG-29s fought Ethiopian Su-27s both piloted by Russian mercenaries. There were possibly as many as 24 R-27s fired by both sides. Only one R-27 fired by an Ethiopian Su-27 at an Eritrean MiG-29 proximity-fuzed near enough the MiG that the damaged aircraft eventually crashed on landing.
During the Yemeni Civil War (2015–present) Houthis have used R-27T missiles modified to serve as surface to air missiles. A video released on January 7, 2018 also shows a modified R-27T hitting a Saudi F-15 on a Forward looking infrared camera. Houthi sources claim to have downed the F-15, although this has been disputed, as it appears the missile proximity detonated, though the F-15 continued to fly in its trajectory seemingly unaffected. Rebels later released footage showing an aircraft wreck, however serial numbers on the wreckage suggested the aircraft was a Panavia Tornado, also operated by Saudi forces. On January 8, the Saudi Press Agency admitted the loss of an aircraft over Yemen, though it did not clarify whether it was a Tornado or an F-15.
On 21 March 2018, Houthi rebels released a video where they hit and possibly shot down a Saudi F-15 in Saada province. In the video a R-27T air to air missile adapted for surface to air use was launched, appearing to have successfully hit a jet. As in the video of the previous similar hit recorded on 8 January, the target, while clearly hit, did not appear to be downed. Saudi forces confirmed the hit, while saying the jet safely landed at a Saudi base. Saudi official sources confirmed the incident reporting that it happened at 3:48 pm local time after a surface-to-air defense missile was launched at the fighter jet from inside Saada airport.
Algeria Azerbaijan Bangladesh Belarus Bulgaria People's Republic of China Cuba Eritrea Ethiopia Georgia India – Ordered 300 missiles in 2019 for Su-30MKI aircraft. R-27R1/ER1 and R-27T1/ET1 variants. Indonesia (on Su-27s and Su-30s) Iran Kazakhstan Myanmar Malaysia North Korea Peru Poland Russia Serbia Slovakia Sudan Syria Ukraine Venezuela Vietnam Yemen
Czechoslovakia Czech Republic East Germany (all given to West German Air Force in 1990) Germany (all given to the Polish Air Force with MiG-29s in 2004) Hungary Iraq Soviet Union (passed on to successor states except Lithuania, Latvia and Estonia) Romania Yugoslavia/ Yugoslavia/Serbia and Montenegro
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