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General Information
Military designation: M777
Manufacturer designation: Ultralightweight Field Howitzer (UFH)
Manufacturer country: United KingdomUnited Kingdom United Kingdom
Developer / Manufacturer: BAE Systems
Development year: 1987
Start of production: 2002
Model variants: M777, M777A1, M777A2
Weapon Category: Field howitzer
Team: 8-10
Technical specifications
Overall length: 10.21 m
(ready to fire)
Pipe length: 6.09 m
Caliber :

155 mm

Caliber length : L / 39
Weight ready for use: 4,200 kg
Cadence : 2-5 rounds / min
Elevation range: -5 ° -70 degrees
Side straightening area: ± 22.5 °
Closure Type : Screw lock
Charging principle: manually
Ammunition supply: manually
Video of the M777 in action in Afghanistan

The M777 is a solid howitzer from British production mm with a caliber of 155th The manufacturer is BAE Land Systems . It is used by the United States Armed Forces and tested in the United Kingdom .

The first American unit in which the M777 replaced the M198 was the 3rd Artillery Battalion of the 11th Regiment of the 1st Marine Division of the United States Marine Corps in 2005 . By early 2010, the M777 had largely replaced its predecessor.

The howitzer can fire the M982 Excalibur and M795 GPS-guided projectiles . The latter uses a special course corrected fuse, "Course Correcting Fuze" (CCF) and was developed by United Defense in collaboration with Bofors Defense, Rockwell Collins and BT Fuze. This ammunition enhances the effect of existing guns almost to the point of impact capability, as it is required in combat situations. At the Yuma Proving Ground firing range, a spread of only 50 meters was achieved at a distance of 14.5 kilometers. For this purpose, the detonator is programmed with the target coordinates by a laptop immediately before it is fired.

In addition to the US armed forces, the Canadian armed forces have ordered 37 howitzers, the Indian armed forces 145 howitzers and the Australian Defense Force 35 howitzers.

As part of the ERCA (extended range cannon artillery) program, the howitzer is to be modernized and its range increased significantly. In tests with an extended barrel with a 58 caliber length (L / 58), a shooting distance of up to 70 kilometers should be achieved.

Web links

Commons : M777  - collection of pictures, videos and audio files

Individual evidence

  1. https://www.youtube.com/watch?v=zYBgFeLCp3E see minute 4:14
  2. http://defense-update.com/20160626_m777.html
  3. Capt Jennifer Stoyle: More howitzers on the way. (No longer available online.) In: The Marple Leaf. National Defense and Canadian Forces, June 10, 2009, archived from the original on June 22, 2013 ; accessed on March 20, 2012 (English).
  4. Kym Bergmann: Push is on to bring out the big guns. Australia is one of the very few modern nations without self-propelled systems. In: The Australian. News Limited, October 23, 2010, accessed March 20, 2012 .
  5. http://www.nationaldefensemagazine.org/articles/2017/10/11/army-to-demonstrate-new-extended-range-artillery-by-2018
  6. https://www.dsiac.org/resources/news/m777a2-extend-range-howitzer-program-looking-demonstrate-70km-range
  7. The National Interest: Big Guns: Army Prototypes Range-Doubling New Artillery Weapon to Outgun Russia (English)