7021-01-707-1529 PDCU Computer 12999106-1
M109A6 PDCU Computer
In the M109A6 Paladin Howitzer, PDCU stands for Paladin Digital Computer Unit. It acts as the primary, onboard computer system for the artillery's digital fire control and positioning.
The PDCU is the core processing component of the Paladin Digital Fire Control System (PDFCS). Its primary functions and roles include:
- Automated Computations: It calculates precise firing data, allowing the howitzer to automatically compute ballistics and aim the cannon.
- Rapid Deployment: By integrating with the howitzer's GPS and navigation systems, the PDCU supports the Paladin's "shoot-and-scoot" capability, enabling the crew to fire a round within 60 seconds of halting.
- System Troubleshooting & Diagnostics: Technicians use the PDCU and its associated testing equipment to isolate electrical and communication faults within the turret and fire control systems.
- Obsolescence Upgrades: Due to the age of the 1990s computing tech, the Army has utilized modular upgrades—such as the PDFCS-R (Replacement)—to swap out older circuit card assemblies in the PDCU with modern processors, giving the system more computing power without needing to replace the physical unit.
7021017071529
017071529
12999106-1