Infantry Tank Mk.IV Churchill Mk.IV NA75
| GENERAL DATA | |||
| Other Designation(s) | A22C, NA = North
Africa & 75 = American 75 mm Gun M3 |
||
| Type | Infantry Tank |
Radio Equipment | Wireless set No. 19 |
| Manufacturer(s) | Regimental Workshops
of 1st British Army |
||
| Crew | 5 (Commander, gunner, loader, driver, co-driver/hull gunner) |
||
| Production Quantity | 120 |
Production Period | 1942-1943 |
| DIMENSIONS | |||
| Combat weight | 39600 kg |
Ground pressure | 0.92 kg kg/cm² |
| Length /hull | 7.54 m |
Length w/Gun | 7.54 m |
| Barrel Overhang | 0.30 m |
Height | 2.49 m |
| Width | 2.74*-3.25 m |
Ground clearance | 0.51 m |
(*) Without side air louvres
| ARMAMENT | |||
| Primary Armament | 75 mm Gun M3 on M34 mount (1) |
Ammunition Carried | 75 |
| Traverse | 360° (electric or manual) |
Elevation | -12.5° to +20° |
| Traverse speed (360°) | 24°/sec |
Sight | ? |
| Secondary Armament | 2 x 7.62 mm .30cal M1919A4 MG (2) |
Ammunition Carried | 6925 |
2" Bomb thrower (3) |
30 |
||
Verey pistol (4) |
20 |
||
Thompson machine carbine (5) |
460 |
||
| Location | 1: Turret - 2: coaxial, bow - 3:
turret roof - 4/5: inside |
||
| ARMOR | ||||
| Assembly | Welding & Riveting
|
|||
| Armor Detail | Front |
Side |
Rear |
Top/Bottom |
| Hull | 89 mm / 65°(nose) |
76 mm / 90° |
64 mm / 90° |
19 mm / 0° |
| Superstructure | 38 mm /
25° (glacis) 102 mm / 86° (driver) |
- |
- |
19 mm /
0° |
| Turret | 89 mm / 90° |
89 mm / 90° |
89 mm / 90° |
35 mm / 0° |
| Mantlet | - |
- |
- |
- |
| AUTOMOTIVE | |||
| Engine | 2 x Bedford Twin-Six |
Type & Displacement | 2 x HO6, 21.3 litres |
| Horsepower (maximum) | 350 hp at 2200 rpm |
Power/Weight Ratio | 8.8 hp / ton |
| Gearbox | Merritt-Brown: 4 forward, 1 reverse |
Fuel Capacity | 682 + 148 auxilliary L Gasoline |
| SUSPENSION | |||
| Type | Vertical coil springs |
Road wheels | 11 independent double-road wheels |
| Track return rollers | - |
Sprocket-Wheels | Rear, double |
| Idler Sprockets | Front, double |
Shock absorbers | - |
| Track Type | Dry pin, Heavy cast steel or Light cast steel and manganese | ||
| Width | 559 mm |
Pitch | 203.2 mm |
| Links(shoes) | Heavy cast: 70 - Light
cast: 72 |
Track ground contact | 3.81 m |
| PERFORMANCES | |||
| Maximum Speed | 25 km/h on road, 13 km/h off road |
Range | 259 km on road, 154 km off road |
| Mileage | 334 L/100 km on road, 561 L/100 km off road |
Maximum grade | 30° (from horizontal) |
| Trench crossing | 3 m |
Vertical obstacles | 1.13 m |
| Maximum fording depth | 0.91 m |
Minimum turning diameter | skid |
| Sources | |||
| OnWar.com | TNT Hors-Série n°6 | - |
|
File |
Drawings |
/UK/Models/4-InfantryTanks/Mark4-Churchill/Mk.4-Churchill-Mk.4-NA75/Bt-off.jpg)
