The S-400 Triumf, developed by Russia’s NPO Almaz in the 1990s, is one of the most advanced air defense systems globally. It has sparked widespread interest due to its strategic capabilities. This article answers the most frequently asked questions about the S-400, focusing on its deployment in India and technical specifications.
What is the S-400 Air Defence System Price in India?
India signed a $5.43 billion deal with Russia in 2018 to acquire five S-400 systems. This cost covers the systems, missiles, training, and supporting infrastructure. The investment reflects the S-400’s critical role in bolstering India’s defense against aerial threats, making it a cornerstone of the country’s air defense strategy.
What is the S-400 Missile System Price?
The price of an S-400 missile system depends on the configuration, including the number of battalions, missile types, and additional equipment. A single S-400 battalion, comprising radars, command centers, and launchers, typically costs between $500 million and $1 billion. India’s deal for five systems averages around $1 billion per system, inclusive of missiles and support infrastructure.
How Does the S-400 Indian Air Defence System Work?
The S-400 is engineered to detect, track, and neutralize a wide array of aerial threats, such as aircraft, drones, and ballistic missiles. It integrates long-range radars, a command and control system, and multiple missile types. Capable of engaging targets up to 400 kilometers away and at altitudes of 30 kilometers, the S-400 can track 300 targets simultaneously and engage 36 at once. For India, this system strengthens defense capabilities, offering protection against potential threats from neighboring regions.
What is the S-400 Missile Range?

The S-400 employs various missiles with different ranges to address diverse threats. Its longest-range missile, the 40N6, can hit targets up to 400 kilometers away, ideal for high-altitude threats like ballistic missiles. Other missiles, such as the 48N6 (250 km range) and 9M96 (120 km range), handle closer targets like fighter jets and drones. This multi-layered approach ensures comprehensive defense across varying distances and altitudes.
How Many S-400 Systems Does India Have?
India signed an agreement with Russia in 2018 to purchase five S-400 systems. The first system was delivered in December 2021, with the remaining units expected to be delivered by the end of 2025. These systems are set to significantly enhance India’s air defense capabilities, particularly against potential regional threats.
How Good is the S-400 Air Defence System?
The S-400 is widely regarded as one of the most effective air defense systems in the world. It can counter a variety of threats, including fighter jets, drones, and ballistic missiles, thanks to its long range, ability to track multiple targets, and high accuracy. However, its real-world performance depends on factors like operator training and integration with other defense systems.
This guide provides a detailed look at the S-400 air defense system, addressing key questions about its cost, functionality, and role in India’s defense strategy. Keep following for more insights on global defense technologies
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