R-77 to be replaced in Indian Air Force
Yes, India is going to replace the Russian R-77 missile which is deployed in Su-30MKI. It is being replaced due to its poor performance in the front of PAF in February 2019. It being replaced by R-77-1 ( upgraded variant of R-77), R-27ER, R-27ET, Astra & I- Derby by 2022.
R-77
It is a Russian medium- range active radar homing air-to-air missile.
Range: 80- 100 km
Speed: Mach 4
It is currently being used in MiG-21, MiG-29 & Su-30MKI . Indian has ordered 400 R-77-1 missiles in 2019.
R-77-1 range: 110 km.
R-27
It is a medium- to- long range air to air missile developed by the Soviet Union.
IAF is using two variants of this missile.
R-27 T: 40 km
R-27 R: 80 km
Speed: Mach 4.5
It is currently being used in MiG-29 & Su-30 MKI.
India has ordered 300 R-27 ER & R-27 ET missiles in 2019.
R-27 ER: 130 km
R-27 ET: 120 km
It is a all weather beyond visual range active radar homing air-to-air missile developed by India.
Range: 110 km
Speed: Mach 4.5
I- Derby
It is a beyond visual range active radar homing air-to-air missile developed by Israel.
Range: 100 km
Speed: Mach 4
It is used in HAL Tejas.
In May 2019, IAF planned to replace the whole batch of R-77 missile used in Su-30MKI with I- Derby & Astra by 2022.
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