Color-coded section view of a rocket-assisted projectile ammunition round
Type
Rocket-assisted projectile
Place of origin
United States
Service history
In service
1970–present
Production history
Designed
1960s
Manufacturer
General Dynamics Ordnance and Tactical Systems
Specifications
Mass
96 lb (43.6 kg)
Length
34.39 in (873.5 mm) fused
33.8 in (858 mm) unfused
10.5 in (266.7 mm) rocket body
Diameter
155 mm (6.1 in)
Muzzle velocity
2,710 ft/s (826 m/s)
Maximum firing range
18.7 mi (30.1 km)[note 1]
Filling
M549 Comp B
M549A1 cast TNT
Filling weight
M549 16.0 lb (7.26 kg)
M549A1 15 lb (6.8 kg)
References
Janes[1]
The M549 is a high-explosive rocket-assisted (HERA) 155 mm howitzer round developed for use by the US military in order to add additional range to standard howitzers, with a maximum range 30.1 km (18.7 mi) from a M198 howitzer. The projectile has two distinctive pre-assembled components—the high-explosive (HE) warhead and the rocket motor, making it a form of rocket-assisted projectile. The warhead is fabricated from high-fragmentation steel for increased effectiveness in terms of damage caused to target and contains a bulk-filled explosive (either TNT or Composition B).
^ abJanes (2 August 2022), "155 mm M549 and M549A1 HERA projectiles", Janes Land Warfare Weapons: Ammunition, Coulsdon, Surrey: Jane's Group UK Limited., retrieved 7 March 2023
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The M549 is a high-explosive rocket-assisted (HERA) 155 mm howitzer round developed for use by the US military in order to add additional range to standard...
designed for improved accuracy. It carries a larger payload than the aging M549 Extended Range Projectile or ERP, which is the previous boosted round the...
UK Limited., retrieved 23 December 2022. Janes (2 August 2022), "155 mm M549 and M549A1 HERA projectiles", Janes Weapons: Ammunition, Coulsdon, Surrey:...
Rocket-assisted projectile (RAP) A high-explosive rocket-assisted (HERA) M549 round with a greater range than the normal HE. The maximum range is 30.1 km...
37 km (17.8 to 23.0 mi) List of crew served weapons of the US Armed Forces M549 – (United States) M982 Excalibur – (United States, Sweden) The M795E1 achieved...
States List of U.S. Army weapons by supply catalog designation (SNL C-39) M549 – (United States) M864 – (United States) M795 – (United States) W48 – (United...
GPS Steering system Four fixed canards Accuracy CEP of less-than 30 m (98 ft) Launch platform M549 HERA projectile M795 HE projectile References Janes...
essence, this meant a shell with the same shape and dimensions as the US M549 rocket-assisted projectile. The standard HE shell (UK designation L15) is...
the U.S. Armed Forces M107 standard 155mm High Explosive (HE) projectile M549 HE Rocket Assisted (HERA) projectile M864 Dual-Purpose Improved Conventional...
impact, 2 rounds/min continuous Effective firing range 18 km (M107), 30 km (M549 projectile(RAP)), 40 km (ERFB/Base bleed) Maximum firing range 40 km (with...
This magazine holds 32 projectiles and will take any of the current M107, M549, M483 projectile family. To transfer the 155 mm projectile to the breech...
accurately simulated the firearm's performance and helped improve its design. M549: An explosive 155 mm howitzer round. BRL conducted several studies to improve...
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