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JASSM-ER vs S-400 Triumf: Side-by-Side Comparison & Analysis

Compare 2026-03-21 4 min read

Overview

In this side-by-side comparison, we analyze the JASSM-ER and S-400 Triumf systems to help defense planners understand which system to choose for specific scenarios. The JASSM-ER is a stealthy US cruise missile with a range of 1000km, while the S-400 Triumf is a Russian air defense system with a range of 400km. Both systems have their strengths and weaknesses, and this comparison will help identify the best choice for different scenarios.

Side-by-Side Specifications

DimensionJassm ErS 400 Triumf
Type Joint Air-to-Surface Standoff Missile — Extended Range Long-range anti-aircraft/anti-ballistic missile system
Origin United States — Lockheed Martin Russia — Almaz-Antey
Operators United States Air Force, Australia, Finland, Poland Russia, China, India, Turkey, Belarus
Range (km) 1000 400
Speed Subsonic (high subsonic, Mach 0.8+) Mach 14+ (40N6 missile)
Guidance INS/GPS with infrared autonomous terminal seeker Active radar homing (9M96) / semi-active + inertial (48N6)
Warhead 450kg WDU-42/B penetrator warhead Fragmentation (varying by missile type)
First Deployed 2014 2007
Unit Cost (USD) ~$1.4M per missile ~$500M per regiment (2 battalions)
Significance USAF's primary standoff strike weapon. Stealthy cruise missile with very low radar cross-section. Russia's premier air defense system and most significant defense export.

Head-to-Head Analysis

Range & Coverage

The JASSM-ER has a significantly longer range than the S-400 Triumf, allowing it to engage targets from a greater distance. However, the S-400 Triumf has a more extensive coverage area due to its ability to engage multiple targets simultaneously.
The JASSM-ER has a significant advantage in terms of range, but the S-400 Triumf has a better coverage area.

Accuracy

Both systems have high accuracy, but the JASSM-ER's autonomous terminal seeker allows it to engage targets with greater precision, even in the presence of jamming or decoys.
The JASSM-ER has a slight advantage in terms of accuracy.

Cost

The S-400 Triumf is significantly more expensive than the JASSM-ER, both in terms of individual missile cost and overall system cost.
The JASSM-ER has a significant cost advantage.

Stealth Capabilities

The JASSM-ER has a very low radar cross-section, making it difficult to detect and engage. The S-400 Triumf, on the other hand, has a large radar signature, making it a priority target for SEAD systems.
The JASSM-ER has a significant advantage in terms of stealth capabilities.

Mobility

The S-400 Triumf is highly mobile, able to relocate in just 5 minutes. The JASSM-ER, on the other hand, requires a large aircraft for carriage and is not as mobile.
The S-400 Triumf has a significant advantage in terms of mobility.

Scenario Analysis

Defending against Iranian ballistic missile salvo

In this scenario, the S-400 Triumf would be the better choice due to its ability to engage multiple targets simultaneously and its high accuracy. However, the JASSM-ER's autonomous terminal seeker would allow it to engage targets with greater precision, even in the presence of jamming or decoys.
system_b

Engaging a stealthy target

In this scenario, the JASSM-ER would be the better choice due to its very low radar cross-section and autonomous terminal seeker. The S-400 Triumf's large radar signature would make it difficult to detect and engage the target.
system_a

Defending a large area

In this scenario, the S-400 Triumf would be the better choice due to its ability to engage multiple targets simultaneously and its high accuracy. The JASSM-ER's limited range would make it less effective in this scenario.
system_b

Complementary Use

The JASSM-ER and S-400 Triumf systems are complementary in nature, with the JASSM-ER providing a stealthy, long-range strike capability and the S-400 Triumf providing a high-accuracy, multi-target engagement capability. In a conflict scenario, these systems could be used together to provide a robust and effective defense against a wide range of threats.

Overall Verdict

In conclusion, the JASSM-ER and S-400 Triumf systems are both highly effective in their respective roles, but they have different strengths and weaknesses. The JASSM-ER is a stealthy, long-range strike capability, while the S-400 Triumf is a high-accuracy, multi-target engagement capability. The choice between these systems will depend on the specific requirements of the mission and the capabilities of the forces involved.

Frequently Asked Questions

What is the range of the JASSM-ER?

The JASSM-ER has a range of 1000km, making it a highly effective long-range strike capability.

What is the significance of the S-400 Triumf?

The S-400 Triumf is Russia's premier air defense system and most significant defense export, providing a high-accuracy, multi-target engagement capability.

Can the JASSM-ER engage stealthy targets?

Yes, the JASSM-ER has a very low radar cross-section and autonomous terminal seeker, making it highly effective against stealthy targets.

How does the S-400 Triumf compare to the THAAD system?

The S-400 Triumf has a longer range and more extensive coverage area than the THAAD system, making it a more effective air defense capability.

What is the cost of the JASSM-ER?

The JASSM-ER has a unit cost of approximately $1.4M per missile, making it a relatively affordable long-range strike capability.

Related

Sources

Lockheed Martin Lockheed Martin Corporation official
Almaz-Antey Almaz-Antey Corporation official
Jane's Defence Weekly Jane's Information Group journalistic
Defense News Gannett Company journalistic

Related Topics

S-400 Triumf JASSM-ER Lockheed Martin How Anti-Ship Missiles Work What Is A Cruise Missile What Is Radar Cross Section

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