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Landing Vehicle, Tracked (Armored), Mark 4

Vehicle Specifications

General Information
Date of First Acceptance - 1944	Total Acceptances - 1890

Crew - 6 Man
Commander in turret	Gunner in turret
Driver in hull left front	Loader in turret
Assistant driver in hull left front	Anti-aircraft machine gunner

Armor:
Maximum	1.5"	Minumum	0.25"

Armament:
Type	Mount	Ammunition	Traverse	Elevation
75mm Howitzer M3	M7 in turret	100 rounds	360°	+40° to -20°
.50cal M2HB MG (Early Model)	Ring mount on turret rear	400 rounds	360°	Manual
Two .30cal M1919A4 MG (Late Models)	Mount on either side of turret	4000 rounds	360°	Manual
.30cal M1919A4 MG (Late Models)	Cab right bow mount	2000 rounds	Manual	Manual

Dimensions:
Combat Weight (land)	40,000lbs	Height	122.5"
Length	313"	Howitzer Overhang Forward	0"
Width	128"	Tread	113.5"
Ground Clearance	18"	Ground Pressure, Zero Penetration	11.1 psi

Performace:
Max Level Road Speed	25 mph	Max Water Speed	7 mph
Max. Trench	60"	Min. Land Turning Diameter	30'
Max. Vertical Obstacle	36"	Max. Grade	60%
Angle of Approach	35°	Angle of Departure	30°
Cruising Range Roads	125 miles	Cruising Range Water	75 miles

Automotive:
Engine:		Continental W-670-9A; 7 cylinder, 4 cycle, radial gasoline
Transmission:		Synchromesh, 5 speeds forward, 1 reverse
Steering:		Controlled differential, steering levers
Brakes:		Mechanical, external contracting

Suspension:
Type:	Road Wheels:	Track Return Rollers:
Torsilastic	11 independently sprung/track	2/track
Drive Sprockets:	Idlers:	Shock Absorbers:
37-alternate-engaged-tooth front drive	33-tooth adjustable sprocket at rear of track	None

Track:
Outside guide, dry pin, steel link, extruded grousers
Width:	14.25"	Pitch	8"	Shoes/Track:	73
Ground Contact Length:			126.5"

	LVT(A)4 was based on LVT(A)1, but with a new turret mounting a 75mm howitzer. Both early and late armored cabs were fitted to LVT(A)4. In later vehicles, the ring-mounted .50cal MG was replaced by a mount for a .30cal MG on either side of the rear of the turret. Late-production turrets had vision blocks installed in their rears and sides.
	References: AFV Database: http://afvdb.50megs.com/


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