| AGM-158 Joint Air-to-Surface Standoff Missile | |
|---|---|
| Type | Air-to-surface cruise missile |
| Place of origin |  United States |
| Service history | |
| In service | 1999 - present |
| Used by | United States Air Force Royal Australian Air Force Republic of Korea Air Force Royal Netherlands Air Force |
| Production history | |
| Manufacturer | Lockheed Martin |
| Unit cost | $700,000 (USD) |
| Produced | 1998 - present |
| Specifications | |
| Weight | 2250 lb (1021 kg) |
| Length | 14 ft (4.72 m) |
| | |
| Engine | Teledyne CAE J402-CA-100 turbojet 3.0 kN (680 lb) |
| Operational range | >230 mi (>370 km) |
| Guidance system | Global Positioning System (GPS)-aided inertial navigation system (INS) |
| Launch platform | B-1 Lancer B-2 Spirit B-52 Stratofortress F-15E Strike Eagle F-16 Fighting Falcon F/A-18E/F Super Hornet P-3 Orion S-3 Viking |
The US Air Force studied various improvements to the AGM-158, resulting in the development of the JASSM-Extended Range (JASSM-ER), which received the designation AGM-158B in 2002. Using a more efficient engine and larger fuel volume in an airframe with the same external dimensions as the JASSM, the JASSM-ER is intended to have a range of over 575 miles (925 km) as compared to the JASSM's range of about 230 miles (370 km). Other possible improvements were studied but ultimately not pursued, including a submunition dispenser warhead, new types of homing head, and a new engine giving ranges in excess of 1,000 km (600 mi). The JASSM-ER has 70% hardware commonality and 95% software commonality with the original AGM-158 JASSM.
The first flight test of the JASSM-ER occurred on May 18, 2006 when a missile was launched from a U.S. Air Force B-1 bomber at the White Sands Missile Range in New Mexico. The JASSM-ER is expected to be fully operational and ready to deploy in 2013. While both the original JASSM and the JASSM-ER are several inches too long to be carried in the internal weapons bay of the F-35 Lightning II, the F-35 will be able to carry both missiles externally, although this will compromise the aircraft's stealth features.
AGM-158
- Length: 4.27 m (14 ft)
- Wingspan: 2.4 m (7 ft 11 in)
- Weight: 975 kg (2,150 lb)
- Speed: Subsonic
- Range: >370 km (>230 mi)
- Propulsion: Teledyne CAE J402-CA-100 turbojet; thrust 3.0 kN (680 lbf)
- Warhead: 450 kg (1000 lb) WDU-42/B penetrator
- Production unit cost: $700,000
- Total program cost: $3,000,000,000
- Production dates: 1998-present
AGM-1858B (JASSM-ER)
- Speed: Subsonic
- Range: >926 km (>575 mi)
- Propulsion: Williams International F107-WR-105 turbofan
- Production dates: 2010-present
