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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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