S-400 Triumf

Russia's long-range, multi-layered surface-to-air missile system capable of engaging aircraft, cruise missiles and ballistic missiles with a family of interceptors of differing range. It has been exported to China, India and Turkey, drawing sanctions from the United States over the Turkish purchase.

Engagement

400 km

💲 Approximate cost per battalion set, export estimate

Full specifications

Performance

Speed, range, altitude and engagement capability.

Max speed (Mach) Maximum speed as a multiple of the speed of sound. Mach 2+ is typical for air-superiority fighters.: 14 Mach

83th pct in class
Engagement range Maximum distance at which an air-defense system can intercept targets. Higher covers more airspace.: 400 km

83th pct in class
Engagement altitude Maximum target altitude the system can reach.: 30,000 m

67th pct in class
Simultaneous targets Number of targets the system can engage at once. Higher resists saturation attacks.: 36

67th pct in class

Firepower

Armament, payload and guidance.

Main armament Primary weapon: main gun, cannon or missile type.: 48N6, 9M96E/E2, 40N6E interceptor family
Warhead Warhead mass. Heavier generally means larger effect radius, at the cost of range.: 180 kg

80th pct in class
Warhead type Blast-fragmentation, shaped charge (HEAT), penetrator, thermobaric or nuclear-capable.: Fragmentation
Guidance How the weapon finds its target: inertial, GPS/GLONASS, active/semi-active radar, infrared, laser, TV, wire.: Semi-active radar homing, Active radar homing (40N6), Inertial + datalink

Sensors & avionics

Radar, sensor suite and datalinks.

Radar Primary radar. AESA (active electronically scanned array) is the current state of the art.: 91N6E Big Bird acquisition radar
Radar range Published detection range against a typical fighter-sized target. Higher sees first.: 600 km

67th pct in class
Datalink Network connectivity: Link 16, MADL, national datalinks. Enables cooperative engagement.: Baikal-1M command post network

Program

Cost, production scale and operators.

Unit cost Approximate flyaway/unit cost where public. Defense pricing varies hugely by contract, offsets and configuration. Lower is cheaper.: $500,000,000

33th pct in class
Operator countries Number of countries operating the system. More operators means broader support ecosystem.: 4

17th pct in class

Specifications compiled from public Almaz-Antey and reference sources ↗. Published defense figures are approximations — treat comparisons as directional. Last verified 2026-07-01.

Frequently asked questions

What is the engagement range of the Almaz-Antey S-400 Triumf? +

The Almaz-Antey S-400 Triumf has a maximum engagement range of 400 km.

What is the main armament of the Almaz-Antey S-400 Triumf? +

The Almaz-Antey S-400 Triumf's primary weapon is the 48N6, 9M96E/E2, 40N6E interceptor family.

What is the Almaz-Antey S-400 Triumf used for? +

The Almaz-Antey S-400 Triumf is a air defense system typically used for air defense.

How many countries operate the Almaz-Antey S-400 Triumf? +

The Almaz-Antey S-400 Triumf is operated by 4 countries.

How much does the Almaz-Antey S-400 Triumf cost? +

The Almaz-Antey S-400 Triumf has an approximate unit cost of 500,000,000 USD. Defense pricing varies by contract, offsets and configuration — treat this as directional.