TM-9-2350-311-10
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; OPERATOR’S MANUAL
NOVEMBER 1994
TM-9-2350-311-10 - Page 59 of 775
TM 9--2350--311--10
Change 6
1--21
1--13 EQUIPMENT DATA — CONTINUED
PERFORMANCES — CONTINUED
Grade descending ability (max)
60%
...............................................................
Trench crossing width (max)
72 in. (1.83 m)
..........................................................
Vertical wall (max)
21 in. (0.53 m)
.................................................................
Turn radius (min)
1 vehicle length
..................................................................
Fording depth
42 in. (1.07 m)
.....................................................................
PRIMARY ARMAMENT (TWO CONFIGURATIONS)*
Cannon assembly
M185 (M109A2/M109A3/M109A4)
.................................................
M284 (M109A5)
Cannon tube length
238 in. (6.05 m)(M185)
.........................................................
240 in. (6.09 m)(M284)
Cannon mount
M178 (M109A2/M109A3/M109A4)
...................................................
M182 (M109A5)
EFC value (M109A2/M109A3/M109A4)
(Zones 1--6) 0.25
.............................................
(Zone 7) 0.75
(Zone 8) 1.00
EFC value (M109A5)
(Zone 1 (M231)) 0.05
..........................................................
(Zone 2 (M231)) 0.15
(Zone 3 (M232/M232A1)) 0.10
(Zone 3G -- 5G (3A1)) 0.05
(Zone 3W -- 6W (M4A2)) 0.05
(Zone 4 (M232/M232A1)) 0.25
(Zone 5 (M232/M232A1)) 1.00
(Zone 7W (M4A2)) 0.15
(Zone 8/7R (M119A1/A2)) 0.25
(Zone 8R/8S (M203/A1)) 1.00
* All data listed applies to both configurations unless specified otherwise.
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