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S-300F Fort


NATO: SA-N-6 Grumble


Overview


S-300F Fort

Top view of S-300F Fort on a Project 1164 Atlant (NATO: Slava) class cruiser. Note the octuple launchers left and 3R41 Volna (NATO: Top Dome) radar on the right.
Source: US Navy - © Public domain

Origin
Soviet Union
Type
Naval SAM system
Entered service
1984
Status
In service
Development
Mid 1970's - Early 1980's
Developer
Soviet Union - Altair (system)
Soviet Union - NIIP (radar)
Soviet Union - Fakel (missiles)
Production
Early 1980's - ?
Producer
Soviet Union
Number produced
8 vessels equipped
Designations
SA-N-6 Grumle (NATO reporting name)
Fort (official nickname)
Russian for "fortress"
Rif (export designation)
Russian for "reef"
Notable users
Soviet Union
Russia

System composition


3R41 Volna fire control radar

Very large and distinctive fire control radar. Has the capacity to track six targets simultaneously which are engaged using two missiles each. Target acquisition is carried out using the ship's main 3D air search radar.

5V55RM missile

Single stage missile with solid propellant rocket motor. Uses radio command guidance towards target area. Switches to track via missile radar homing as guidance mode in terminal phase.

Rotary launcher

Eight missiles are ready to launch per rotary launcher. The missile transport and launch cannisters are suspended below deck. The missiles use a cold start method, being ejected using a gas generator before the rocket motor ignites mid air.

Details


Facts 5V55RM
General
Origin
Soviet Union
Type
Surface to air missile
Dimensions
Length
7.25 m
Diameter
508 mm
Wingspan
1.124 mm
Weight
1.664 kg
Guidance
Terminal phase
Radar homing, track via missile
Initial phase
Radio command guidance
Warhead
Type
HE-Fragmentation
Weight
130 kg
Fuse
Proximity
Engagement envelope
Propulsion
Single stage solid propellant rocket motor
Speed
Mach 4
Range
75 km
Altitude
25 km maximum
10 - 25 m minimum
Launch container
Launch mode
Cold start using gas generator
Length
8.0 m
Diameter
1.0 m
Weight
2.3 t including missile

Application


Project 1164 Atlant class

Rear view of Marshal Ustinov, a Project 1164 Atlant (NATO: Slava) class cruiser.
Source: UK MOD - © Open Government License

List of ships with S-300F Fort

Project 1134B Berkut-B class
A single ship, Azov, of Project 1134B Berkut-B (NATO: Kara) class was modified to Project 1134BF standard. This replaced the existing M-11 Shtorm system with S-300F with 3R41 fire control radar.
S-300F Fort all 3 Project 1164 Atlant (NATO: Slava) class cruisers. 8x8 S-300F in all of class.
Project 1144 Orlan class
S-300F on all 4 Project 1144 Orlan (NATO: Kirov) class battlecruisers. 12x8 launchers on first three ships in class. Fourth in class has mixture of 6x8 S-300F and 6x8 S-300FM.

Media