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Cruise Missiles ยทLockheed Martin

Missile AGM-158 JASSM

American cruise missile, entered service in 2003, uses INS and GPS guidance. Key figures: range 370 km, top speed 1,050 km/h, warhead 450 kg, guidance INS, IIR, GPS, unit cost $1.665M, in service since 2003. In service with 4 countries โ€” Australia, Finland, Poland and 1 other.

Range
370km
Max speed
1,050km/h
Produced
7,500units
Avg unit price
$1.7million
Technical Specifications
WarheadHigh Explosive / Fragmentation
Warhead weight450 kg (992 lb)
Diameter635 mm (25.0 in)
Span550 mm (21.7 in)
Length4,260 mm (167.7 in)
Weight1,020 kg (2,249 lb)
Range 370 km (230 mi)
Max. speed1,050 km/h (Mach 1.1)
AGM-158 JASSM scale diagram
AGM-158 JASSM โ€” Cruise 1.75 m 4.26 m
Range
370 km
Speed
1,050 km/h
Weight
1.0 t
Warhead
450 kg
Operators
๐Ÿ‡ฆ๐Ÿ‡บ Australiaยท ๐Ÿ‡ซ๐Ÿ‡ฎ Finlandยท ๐Ÿ‡ต๐Ÿ‡ฑ Polandยท ๐Ÿ‡บ๐Ÿ‡ธ United States

Description

The AGM-158 Joint Air-to-Surface Standoff Missile (JASSM) is an American-made, long-range, air-launched cruise missile designed for precision strikes against high-value, well-defended targets. Manufactured by Lockheed Martin, the missile was introduced into service in the early 2000s and is used by the U.S. Air Force and Navy, as well as by allied nations.

The JASSM utilizes stealth technology to reduce its radar cross-section, making it difficult to detect and intercept. It's designed to fly at low altitudes to evade radar and is equipped with a 1,000-pound penetrating warhead to destroy hardened targets.

One of the key features of JASSM is its guidance system, which includes an inertial navigation system (INS) coupled with a Global Positioning System (GPS) for mid-course navigation. For terminal guidance, it uses an infrared seeker, allowing it to autonomously recognize and home in on its target. This combination of features enables the missile to achieve a high level of accuracy, even in the face of jamming and other electronic countermeasures.

Powered by a turbofan engine, the basic version of JASSM has a range of about 230 miles (370 kilometers), while the extended-range variant, JASSM-ER, can reach distances up to 620 miles (1,000 kilometers). This long range allows the launch platform to stay outside of enemy air defenses, increasing its survivability.

Wikipedia (CC BY-SA) and other open sources. Last updated on 24 January 2026. Suggest a change

Frequently Asked Questions

What type of missile is the AGM-158 JASSM?
The AGM-158 JASSM is a cruise missile developed by the United States. It entered service in 2003.
What is the range of the AGM-158 JASSM?
The AGM-158 JASSM has a maximum range of approximately 370 km (229 miles). Effective range varies with launch platform, altitude, and flight profile.
How fast is the AGM-158 JASSM?
The AGM-158 JASSM reaches a maximum speed of 1,050 km/h (Mach 0.9).
What warhead does the AGM-158 JASSM carry?
The AGM-158 JASSM carries a high explosive / fragmentation warhead weighing 450 kg.
How is the AGM-158 JASSM guided?
The AGM-158 JASSM uses INS, IIR, GPS guidance.
Which countries use the AGM-158 JASSM?
The AGM-158 JASSM is in service with 4 countries: Australia, Finland, Poland, and 1 other countries.
How much does a AGM-158 JASSM cost?
The AGM-158 JASSM has an estimated unit cost of approximately $1.67 million. Actual prices vary by variant, quantity ordered, and support packages.
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Latest Data Updates
  1. JAN 242026 Updated Max speed added
  2. JAN 192026 Updated Diameter, cep and 5 more fields added
  3. JAN 182026 Updated Sources and cross-references refreshed
  4. OCT 282023 Updated Specifications and description reviewed