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Missile complexes2nd generation missiles → R-27, R-27U BALLISTIC MISSILES
R-27 R-27U

Were designed to destroy medium-range strategic targets. Installed aboard 667A and 667AU submarines carrying 16 missiles. The D-5 complex was put into operation by the Navy in 1968, and D-5U, in 1974.

The R-27 (4K-10) ballistic missile had a single stage and burns liquid fuel. It was the first sea-based liquid-fuel missile in the world. The missile incorporated the following advanced design and engineering solutions used in the future for all liquid-fuel missiles:

  • all-welded missile body;
  • missile propulsion system was placed inside the fuel tank;
  • use of metallized rubber shock absorbers and arrangement of the missile launch elements on its body;
  • the missile tanks were filled with long-storable components and then encapsulated by the manufacturer;
  • automated control of pre-launch operations and salvo firing were introduced.

These solutions allowed to radically reduce the missile size and minimize its readiness time (time of pre-launch operations - 10 min and time between launches - 8 s), as well as made the system operation and maintenance easier and less expensive. The enhanced D-5U/R-27U system was derived from its predecessor, D-5/R-27. Unlike R-27 the R-27U missile was equipped with two types of warheads: single and multiple (cluster) with 3 reentry vehicles. The firing range for a single warhead was increased to 3000 km, while that for a multiple one remained 2500 km.

Basic characteristics
Mass, t:
  • takeoff
  • maximum throw
  • 14.2
  • 0.65
Maximum firing range, km:
  • R-27
  • R-27U
  • 2500
  • up to 3000
Type of warhead:
  • R-27
  • R-27U
  • single
  • single and multiple
Guidance inertial
Missile length, m 9.0
Missile diameter, m 1.5
Propellant liquid

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©Open Joint Stock Company “Academician V.P.Makeyev State Rocket Centre”, 2009