RUAG Defence has developed an enhanced version of the M109 155 mm self-propelled (SP) artillery system aimed at the export market. The company has already upgraded 348 Swiss Army M109sto the Pz Hb 88/95 standard, which represent the only SP artillery deployed by the Swiss Army. Among the improvements are a modified turret and the use of locally manufactured 155 mm/47 calibre chrome plated ordnance in place of the original 155 mm/39 calibre type. This offers an extended range and has a burst rate of fire of three rounds in 15 seconds due to the installation of a flick rammer. RUAG Defence can also provide a crew training simulator (CTS) and video-assisted training programme (VAT) to train the upgraded M109/47 crews.
Increased firing range of up to 36 km
Increased rate of fire (burst of 3 rounds in 15 sec.)
Increased ammunition autonomy (40 rounds, 64 charges)
New electrical system (better than MIL-STD 1275E)
Higher operational readiness
Increased mean time between failures (MTBF)
Fault-finding diagnostics with test equipment
Navigation and positioning system integrated
Increased mobility (gears, engine)
Capable of day and night operations
Effective fire suppression system installed
NEMP und EMP protection
Camouflage: paint and netting
The M109 is an American 155 mm turreted self-propelled howitzer, first introduced in the early 1960s. It has been upgraded a number of times, most recently to the M109A7. The M109 family is the most common western indirect-fire support weapon of maneuver brigades of armored and mechanized infantry divisions. The M109 has a crew of four: the section chief/commander, the driver, the gunner, and the ammunition handler/loader. The chief or gunner aims the cannon left or right (deflection) and up and down (quadrant). Upgrades to the M109 were introduced by the U.S. and by Switzerland (KAWEST).