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Vympel R-27


NATO: AA-10 Alamo


Overview

R-27R

Soviet R-27R semi-active radar homing air to air missile on display in a museum.
Source: George Chernilevsky - © Public domain

Origin
Soviet Union
Type
Long range air to air missile
Entered service
1987 for R-27R and R-27T
1990 for R-27ER and R-27ET
Status
In service
Development
1974 - 1979 (design project)
1979 - mid 1980's (Soviet state trials)
Developer
Soviet Union - Vympel
Production
Mid 1980's - present
Producer
Soviet Union - Vympel
Russia - Vympel
Ukraine - Artyom
Number produced
Significant number produced
Designations
AA-10 Alamo (NATO reporting name)
K-27 (GRAU index for entire system)
Notable users
Soviet Union
Russia

Variants

R-27 air to air missiles

R-27 long range air to air missiles on display in a museum. Note the pointed nose of the R-27R (bottom) and the round nose of the R-27T (second from bottom).
Source: Vitaly V. Kuzmin - © GNU Attribution - Share Alike license

Operational variants of the R-27

R-27R
R-27 variant with semi-active radar homing guidance unit in a pointed nose section.
R-27T
R-27 variant with infrared homing guidance unit. The rounded milky glass dome houses the infrared sensor.
R-27ER
Extended range variant of R-27R. Easily identified by its pointed nose in combination with the longer and larger diameter rocket motor section.
R-27ET
Extended range variant of R-27T. Features the IR sensor in the rounded nose and the larger rocket motor section.

Details

Facts R-27R R-27T R-27ER R-27ET
General
Origin
Soviet Union
Type
Long range air to air missile
Dimensions
Length
4.08 m
Diameter
0.23 m
Wingspan
0.77 m
Weight
253 kg
Guidance
Guidance section
Agat 9B1101T radar seeker
Terminal phase
Semi-active radar homing
20 to 35 km acquisition range
All aspect homing
Initial phase
Inertial navigation with radio command updates
Warhead
Type
Expanding rod warhead
Weight
39 kg with 15 kg explosive charge
Fuse
Impact and radar proximity fuse
Engagement envelope
Propulsion
Solid propellant rocket motor
Speed
Mach 4.5 at high altitude
Range
60 km practical in head on engagement
80 km theoretical maximum
7.5 km tail on engagement
0.5 km minimum
Altitude
From sea level to 21 km
G force
8 G target maneuvers

Media

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