Heavy Tank Mark I

GENERAL DATA
Other Designation(s)	Male = Gun/MG Tank, Female = MG Tank
Type	Heavy Tank	Radio Equipment	-
Manufacturer(s)	W.G.Wilson (Naval Armorred Car Divison) & William Tritton (Foster & Co tractor factory)
Crew	8 (commander, driver, two gearsmen and four gunners)
Production Quantity	59	Production Period	1916-1917

 

DIMENSIONS
Combat weight	28000 kg (Male)	Ground pressure	? kg/cm²
	27400 kg (Female)		74.8 kg/cm²
Length /hull	7.75 m / 9.94 m with tail	Length w/Gun	7.75 m / 9.94 m with tail
Barrel Overhang	0 m	Height	2.49 m
Width	4.33 m (Male)	Ground clearance	? m
	4.38 m (Female)

 

ARMAMENT
Primary Armament	2 x 57 mm (6-pdr) 57/40 (1) (Male)	Ammunition Carried	204 (Male)
	4 x 7.7 mm Vickers MG (3) (Female)		30080 (Female)
Traverse	120° (Manual) (Male)	Elevation	?° (manual) (Male)
Traverse speed (360°)	-	Sight	?
Secondary Armament	3 x 7.7 mm Hotchkiss MG (2) (Male)	Ammunition Carried	6272 (Male)
	1 x 7.7 mm Hotchkiss MG (Female)		see primary armament (Female)
Location	1: sponsons (2x), 2: sponsons (2x), front turret (Male)
	3: sponsons (4x), 2: front turret (Female)

 

ARMOR
Assembly	Riveting
Armor Detail (from the horizontal)	Front	Side	Rear	Top/Bottom
Hull	12 mm	12 mm	12 mm	6 mm
				6 mm

 

AUTOMOTIVE
Engine	Foster-Daimler	Type & Displacement	6-cylinder in-line, 16 L
Horsepower (maximum)	105 hp at 1000 rpm	Power/Weight Ratio	3.75 hp / ton (Male)
			3.83 hp / ton (Female)
Gearbox	primary gearbox: 2 forward and 1 reverse, secondary: 2 speeds	Steering	Controlled differential & Steering levers
Brakes	?	Fuel Capacity	227 L Gasoline (Petrol)

 

SUSPENSION
Type	Rigid	Road wheels	26
Track return rollers	10	Sprocket-Wheels	Rear
Idler Sprockets	Front	Shock absorbers	-
Track Type	Steel
Width	530 mm	Pitch	? mm
Links(shoes)	90	Track ground contact	? m

 

PERFORMANCES
Maximum Speed	6 km/h on road	Range	38 km (on road)
Mileage	590 L/100 km (on road)	Maximum grade	?° (from horizontal)
Trench crossing	3.50 m	Vertical obstacles	? m
Maximum fording depth	? m	Minimum turning diameter	? m

 

Sources
Wikipédia	Connaissance de l'Histoire (Hachette) - HS N°3 - " Les blindés, des origines à 1940"	-

 

Drawings

Mark I Male

Mark I Female

 

File

Mark I/III