R-27R1 / R-27ER1

    The R-27T1 and R-27ET1 medium-range air-to-air missiles with semi-active radar homing heads are designed to engage air targets by day and night, in fair and adverse weather conditions, in the front and rear hemispheres, also against diverse underlying surfaces with enemy’s active evasive manoeuvring and intensive jamming.
    The missiles pursue their targets in accordance with an updated proportional navigation method both in the inertial/radio-corrected flight trajectory phase and in the semi-active homing phase after locking on target en route.
    The missiles’ fusing systems are based on radar proximity and impact target sensors. The missile layouts are characterized by modular design. Both missiles are intended for arming MiG/Su-type combat aircraft.

Basic Specifications 

	R-27R1	R-27ER1
Launch range, km:
against fighter-type targets	50 - 60	60 - 62.5
against some other targets	up to 75	up to 100 (90)
Missile dimensions, m:
length	4.08	4.775
body diameter
at control unit section	0.23	0.23
at solid-fuel rocket section	0.23	0.26
wing span	0.7736	0.8033
control plane span	0.972	0.972
Warhead type	rod-type load-carrying	rod-type load-carrying
Warhead weight, kg	39	39
Launch weight, kg	253	350
Engine type	one-mode  solid rocket	two-modesolid rocket

     The missiles are suspended under the aircraft on the AKU-470 ejection unit/APU-470 launch unit, designed for their carriage, launch and emergency jettison. The missiles can be adapted for employment from foreign-made carriers in accordance with the technology, developed by the missile designer.

Developed and manufactured by GosMKB “Vympel"JSC.