Military

M109 155mm SP Howitzer

PERFORMANCE SPECIFICATIONS

MAJOR ITEM:

Model.................................M109A2/A3/A4/A5

Line Item Number.............................K557667 
NATIONAL STOCK NUMBER
M109A2.............................2350-01-031-0586
M109A3.............................2350-01-031-8851
M109A4.............................2350-01-277-5770
M109A5.............................2350-01-281-1719
WEIGHT:
Classification
Empty.....................................52,000
lb (23,586kg)

Combat
Loaded....................................55,000
lb (24,948kg) 
WIDTH
Overall.....................................124
in.(3.1M) 
HEIGHT
Overall.....................................120.43
in(3M)

Lowest operable
height.................................109.93 in(2.8M)

Ground
clearance.....................................18
in(0.45M) 
LENGTH
M109A2/A3/A4
w/armament...........................359.38 in(9.12M)

M109A5
w/armament....................................361.38
in(9.17M)

M109A2/A3/A4/A5 w/o armament..................243.75
in(6.19M) 
SPEEDS
High Speed....................................35 mph
(56.3kmph)

Low Speed.....................................6 mph
(10kmph)

Range.......................................217 miles
(349km) 
PRIMARY ARMAMENT (TWO CONFIGURATIONS)
Cannon
assembly...........................................M185
(M109A2/A3/A4)

...................................................M284
(M109A5)

Cannon Tube
Length...........................................238
in. (6.05m) (M185)

.................................................240
in. (6.09m) (M284)

Cannon
Mount..............................................M178
(M109A2/A3/A4)

...................................................M182
(M109A5)

Maximum Range
(M109A2/M109A3/M109A4).........................18,000m

..............................................RAP
23,500m

Maximum Range
(M109A5)........................................22,000m

..............................................RAP
30,000m

Maximum Rate of
Fire...................................................4
rds/min for 3 min

Sustained Rate of
Fire...................................................1
rd/min for 60 min

.......................................................1
rd/ 3 min thereafter

SECONDARY ARMAMENT

Machine
gun..................................................Caliber
50, M2, Heavy barrel 

1  M185 Cannon (M109A2/A3/A4)
    M284 Cannon (M109A5)
2  Caliber 50 Machine Gun, M2
3  Panoramic Telescope Shield and Indirect Fire Telescope
4  Cannon Mount M178 (M109A2/A3/A4)
                            M182 (M109A5)
5  Cab
6  Hull
7  Direct Fire Periscope