/Vehicles/Allies/USA/08-Halftracks/Data/M4A1.htm | Up-dated:

 

81 mm Mortar Motor Carriage M4A1

GENERAL DATA
-
Mortar Carrier
?
White Motor Co.

6

600
May 1943

 

DIMENSIONS
8200 kg
2.27 m
6.19 m
0.284 m
1.96 m
3.442 m
1.64 m (front) - 1.62 m (rear)

 

ARMAMENT
81 mm Mortar M1 (1)
96-112
60° to front (Manual)
+40° to +85° (Manual)
-
-
.30cal (7.62 mm) M1919A4 MG (2)
2000
.45 cal submachine gun (3)
600
M1 Rocket Launcher (4)
6
Grenades (5)
12
Mines (6)
12
1: Mount M1 - 2: Flexible on skate mount - 3/4/5: inside - 6: side racks

 

ARMOR
Bolting
6.4 mm / 66° (Radiator louvres)
13 mm / 65° (Windshield cover)
6.4 mm / 90°
6.4 mm / 90°
6.4 mm / 7° (Hood top) & Open

 

AUTOMOTIVE
White 160AX
L6
147 hp at 3000 rpm
17.9 hp / ton
Spicer 3461 constant mesh:
4 forward, 1 reverse
Cam and lever, front wheels only
?
227 L Gasoline (Petrol)

 

SUSPENSION
Semi-elliptic longitudinal leaf spring (Front)
Vertical volute spring (Rear)
Steel ventilated disc (Front)
1 bogie/track; 4 dual/bogie (rear)
1 dual/track
18-tooth front drive
Adjustable fixed at rear of track
On front wheels
Center guide band type
300 mm
100 mm
58
1.187 m

 

PERFORMANCES
72 km/h on road
320 km on road
? L/100 km on road
31° (from horizontal)
0.76 m
0.30 m
0.81 m
18 m

 

Sources
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Drawings

 

File

 

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