I thought R-27 was an obsolete missile.
Yeah the first one was manufactured in 1983, the last one of 1990....posting some specs, I dont know why it is being selected ?
AA-10 Alamo / R-27 FAMILY MISSILES
Type: Air -to- Air, medium range
Year: 1983
Range (km):0.5- 80/50
Weight (kg): 253
Lenght (m): 4.08
Type of warhead: semiactive radarhoming
Carried by: su-27, su-30, su-35,yak-141, mig-29
[51]. Length: R-27R: 4080 mm (13.386 ft)
Diameter: R-27R: 230mm(9.055 in)
Missile Wt: R-27R: 254 kg (560 lbs)
Miss Dist/Kill Radius: R-27R: 11.5 m (37.73 ft)
Time of Flight: R-27R: 60 sec
Seeker Gymbol Limits: R-27R: ±55°
Antenna Look Angle: R-27R: ±50°
Guidance: R-27R:
Proportional Navigation
Missile Envelope: R-27R: Max Range (1.4 Mach/40Kft/5sq-m Tgt)
Head-On: 61 km (33.5 NM)
Tail On: 21 km (11.5 NM)
Min Range (1.4 Mach/40K ft/5sq-m Tgt)
Head-On: 02 km (01.1 NM)
Tail -On: 500-600 m (1640-1968 ft)
R-27T
Type: Air -to- Air, medium range
Year: 1983
Range (km): 0.5- 70/45
Weight (kg): 245
Lenght (m): 3.8
Type of warhead: infrared (heat-seeking)
Carried by: su-27, su-30, su-35,yak-141, mig-29
R-27RE
Type: Air -to- Air, medium range
Year: 1985
Range (km): 0.5- 130/60
Weight (kg): 350
Lenght (m): 4.78
Type of warhead: semiactive radarhoming
Carried by: su-27, su-30, su-35,yak-141, mig-29
R-27TE
Type: Air -to- Air, medium range
Year: 1985
Range (km): 0.5- 120/55
Weight (kg): 348
Lenght (m): 4.5
Type of warhead: infrared (heat seeking)
Carried by: su-27, su-30, su-35,yak-141, mig-29
R-27AE
Type: Air -to- Air, medium range
Year: 1990
Range (km): 0.5- 130/60
Weight (kg): 350
Lenght (m): 4.78
Type of warhead: active radarhoming
Carried by: su-27, su-35, yak-141, mig-29
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