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Landing Vehicle, Tracked, Personnel, Mark 5

Vehicle Specifications


General Information

Date of First Acceptance - 1956

Total Acceptances - 1123

Crew - 3 Man + 34 passengers

Commander in hull right front

Driver in hull left front

Assistant driver

34 Combat Equipped Marines

Armor:

Maximum

0.625"

Minumum

0.25"

Armament:

Type

Mount

Ammunition

Traverse

Elevation

.30cal M1919A4
Machine Gun

Cupola mount

250 rounds

360°

+60° to -15°

Dimensions:

Combat Weight (land)

87,780lbs

Height Over Cupola

120.5"

Length

356"

Gun Overhang Forward

0"

Width

140.5"

Tread

116.7"

Ground Clearance, Sides

11"

Ground Pressure,
Zero Penetration

9.2 psi

Performace:

Max Level Road Speed

30 mph

Max Water Speed

6.8 mph

Max. Trench

144"

Min. Land Turning Diameter

Pivot

Max. Vertical Obstacle

36"

Max. Grade

70%

Angle of Approach

 

Angle of Departure

 

Cruising Range Roads

190 miles

Cruising Range Water

57 miles

Automotive:

Engine:

Continental LV-1790-1; 12 cylinder, 4 cycle, 90 vee gasoline

Transmission:

Allison CD-850-4A or -4B, 2 ranges forward, 1 reverse

Steering:

Mechanical, wobble stick

Brakes:

Multiple plate, oil cooled

Suspension:

Type:

Road Wheels:

Track Return Rollers:

Torsilastic

9 pairs of dual/track

5 dual/track

Drive Sprockets:

Idlers:

Shock Absorbers:

17-tooth rear drive

Dual compensating at front of track

None

Track:

Center guide, single pin, steel with inverted grouser

Width:

20.75"

Pitch

5"

Shoes/Track:

134

Ground Contact Length:

229.25"

 
 

The LVTP5 was a large vehicle with an inverted V-shaped bow that made for more efficient water operation, and it broke with previous LVT designs by having the tracks set low in the hull with an internal return channel rather than the all-round track design of its predecessors. Infantry access was via a bow ramp, and the crew and passenger compartment was at the front of the vehicle, with the powerplant to the rear. There were one large and two smaller access hatches over the passenger compartment, and two more small hatches provided access to the engine. The vehicle tracks were made with inverted grousers which propelled the LVTP5 in the water and also served as center guide teeth. There were two track pins, inner and outer, on each shoe, which left a hole in the middle of the track block that allowed the grouser to operate more efficiently in the water. The road wheels on the LVTP5 were paired on either side of the center guide teeth, giving a total of 36 wheels per track. One wheel was surrounded by a solid rubber tire, and these carried the vehicle under normal circumstances. The other wheel was steel-rimmed and helped absorb shock loads. When fitted, the machine gun cupola was installed at the front of the vehicle between the driver and commander. When operating in the water, weight for the LVTP5 was reduced to 81,780lbs (37,100kg), and it could then carry only 25 passengers. The ground clearance down the center of the vehicle was 18" (46cm), which tapered down toward the tracks.

Modifications to the LVTP5's engine air intake and exhaust system produced the LVTP5A1. The most obvious external difference was a large housing on the vehicle's rear roof above the engine.

References:
AFV Database: http://afvdb.50megs.com/


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