Landing Vehicle, Tracked, Mark 11-6

LVT1: General
Date of first acceptance July 1941 Total acceptances 1225
Manufacturers
  • Roebling
  • Food Machinery Corp.
  • Borg-Warner Corp.
  • Graham-Paige
  • St. Louis Car Co.
Crew
3 men
+ 24 passengers
LVT1: Dimensions
Weight, light 17,300lbs
7850kg
Height 97.5"
248cm
Length 258"
655cm
Width 118"
300cm
Ground clearance 18"
46cm
LVT1: Armament
Type Mount Ammunition
Two .30cal M1919 MGs Skate mounts around cargo area 6000 rounds
LVT1: Armor
None
LVT1: Automotive
Engine Hercules WXLC-3; 6 cylinder
Horsepower 146 Fuel capacity 80gal
300L
Transmission Spicer
Steering Steering levers
LVT1: Suspension
Type Road wheels Track return rollers
Unsprung None None
Drive sprockets Idlers Shock absorbers
Rear drive Adjustable blocks at front of track None
LVT1: Track
Width 10.25"
26.04cm
LVT1: Performance
Max level road speed 12mph
19kph
Max water speed 6.1mph
9.8kph
Max fording depth Floats Cruising range ~150mi, roads
~60mi, water
~240km, roads
~100km, water

Developed from a swamp rescue vehicle in use in Florida's Everglades, the main identification point for the LVT1 is that its cab is placed right at the bow of the vehicle. Early versions of the LVT1 had the 3 driver's cab windows spaced farther apart than later versions. The tracks of the LVTs had large grousers attached that propelled the vehicles through the water. The LVT1's tracks incorporated sealed roller bearings which ran in welded molybdenum suspension rails in the bottom of sponsons, and these bearings supported the weight of the vehicle. Adjustable idler blocks mounted on spring-loaded jacks were positioned at the front of the sponsons to take up slack in the track. Each track possessed 316 roller bearings and seventy-nine 3"- (7.6cm-) high, 10.25"- (26.04cm-) wide, curved grouser cleats. The top run of the tracks was cushioned by rubber mats made from conveyor belt. Since the LVT1 was unarmored, it was most useful as a ship-to-shore cargo ferry, and it could haul 4500lbs (2000kg) at a time. LVT1 was unofficially known as Alligator.

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References

  1. Research, Investigation and Experimentation in the Field of Amphibian Vehicles. Kalamazoo, MI: Ingersoll Kalamazoo Division, Borg-Warner Corp., Dec 1957.
  2. Hunnicutt, R.P. Stuart: A History of the American Light Tank, volume 1. Navato, CA: Presidio Press, 1992. Reprinted with permission from Stuart, R.P. Hunnicutt ©1992, available from Presidio Press, 505B San Martin Drive, Suite 160, Navato, CA 94945.
  3. Chamberlain, Peter, and Chris Ellis. British and American Tanks of World War Two. Frome, England: Cassell & Co., 2000.
  4. Crismon, Fred W. U.S. Military Tracked Vehicles. Osceola, WI: Motorbooks International, 1992.
  5. Alexander, Joseph H. "Marine Corps Armor Operations in World War II." Camp Colt to Desert Storm: The History of U.S. Armored Forces. Eds. George F. Hofmann, Donn A. Starry. USA: University Press of Kentucky, 1999.
  6. Siemers, Cary. "USA's Landing Vehicle Tracked." World War II Tanks & Vehicles and Advanced Squad Leader. 25 Nov 2000. 16 Jan 2001 <http://www.shadowsfolly.com/WWII/USA/LandingVehicleTracked.htm>.

Last updated 29 Sep 2016.
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© Copyright 2001-16 Chris Conners