The U.S. Army is developing a next-generation, 40-ton 155mm Howitzer artillery cannon able to fire precision rounds, accommodate additional armor protections and power more on-board electrical systems.
The M109 Paladin Integrated Management, or PIM, is slated to begin low-rate initial production by 2013, and features a 600-volt on-board power system designed to accommodate emerging networking technologies as
Basically, the Army is taking the existing gun mount and gun house, replacing the electro-hydraulic drives with electric drives, and putting the whole thing on a new chassis with a Bradley engine/transmission/final drive assembly.
The commonality of using one powerpack makes good logistical sense, and the reserves of horsepower and electrical power provide room for further growth.
With the death of the Crusader and NLOS-C cannon systems, this evolutionary development makes a good deal of sense. It’s relatively low cost and relatively low risk, and yet gives the artilleryman a replacement for the 25 year old Paladin.