m777 | howitzer
Weighing 4200kg, being air-liftable by CH-47 helicopter or towed by 6x6 MAN trucks with ease to provide increased mobility and more compact storage over the M198. The minimal gun crew required is five, compared to a previous nine, though a crew of 7 plus a battery command team is best practice.
The M777 uses a digital fire-control system similar to that found on self-propelled howitzers such as the Panzerhaubitze 2E to provide navigation, pointing and self-location, allowing it to be put into action quickly and in sync with other units. In conjunction with the traditional "glass and iron sights/mounts" the M777 also uses a digital fire control system called the Digital Gun Management System (DGMS) produced by SELEX with components of the Indirect Fire Control Software Suite (IFCSS) built by the Firepower team in the Canadian Army Land Software Engineering Centre. The SELEX portion of the system, known as LINAPS, had been proven previously through earlier fielding.
The M777 may be combined with the Excalibur GPS-guided munition, which allows accurate fire at a range of up to 25 miles (40 km). This almost doubles the area covered by a single battery to about 1,250 km2. The circular error probable is about five meters.
In 2014 the Military began fielding several upgrades to their M777 howitzers including new liquid crystal display units, software updates, improved power systems, and muzzle sensors for onboard ballistic computing. Future upgrades include a touchscreen Chief Section Display, a new Mission System Computer, and a digital radio.