Landing Vehicle, Tracked, Engineer, Mark 11-5

LVTE1: General
Manufacturer Ingersoll Crew
7 men:
  • Commander in hull right front
  • Gunner in hull center front
  • Driver in hull left front
  • Four combat engineers
LVTE1: Dimensions
Combat weight (land) 97,500lbs
Height 128.5"
Length overall 477.25"
Gun overhang forward 0"
Width with excavator wings extended 225.25"
Tread 116.7"
Ground clearance, sides 11.0625"
Ground pressure, 2" (5cm) penetration 9.5psi
LVTE1: Armament
Type Mount Ammunition Traverse Elevation
.30cal M1919A4 MG Cupola mount G-1 2,000 rounds
(250 ready)
+60° to -15°
Aiming equipment
Periscope M25C for gunner
LVTE1: Armor
Rolled homogeneous steel
Maximum .625"
Minimum .25"
LVTE1: Automotive
Engine Continental LV-1790-1; 12 cylinder, 4 cycle, 90° vee gasoline
Horsepower Net: 704@2,800rpm
Gross: 810@2,800rpm
Torque Net: 1,440 ft-lb@2,000rpm
Gross: 1,610 ft-lb@2,200rpm
Fuel capacity 560gal
Transmission Allison CD-850-4A or -4B, 2 ranges forward, 1 reverse
Steering Mechanical, wobble stick
Brakes Multiple plate, oil cooled
LVTE1: 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
LVTE1: Track
Center guide, single pin, steel with inverted grouser
Width 20.75"
Pitch 5"
Shoes/track 134 Ground contact length 229.25"
LVTE1: Performance
Max level road speed 24.9mph
Max water speed 6.2mph
Max trench 120"
Max grade 60%
Max sideslope 60% Max vertical obstacle 21"
Min turning diameter Pivot Max fording depth Floats

LVTE1 was the engineer version of the LVTP5. A large, toothed, V-shaped excavator blade was mounted on the front of the vehicle, and it could clear a path through a minefield that was 16" (41cm) deep and 12 feet (3.7m) wide. Plastic foam-filled buoyancy tanks were fitted to the rear of the blade to help the LVTE1 keep the right attitude while afloat, and explosive bolts could be issued during combat to jettison the blade should it become damaged or otherwise a hindrance. A rocket-propelled line charge was carried in either side of the cargo compartment, and these were elevated hydraulically. The used line charge pallet was discarded after firing. The familiar machine gun cupola was installed between the commander and driver.

Late-production LVTE1s were powered by the Continental AVI-1790-8 12-cylinder, fuel injected gasoline engine found on the 90mm gun tank M48A2. These vehicles did not feature recessed radiator compartments on the rear sides, and also lacked the armored covers for the engine air intake and exhaust on the rear deck.




  1. Hunnicutt, R.P. Bradley: A History of American Fighting and Support Vehicles. Navato, CA: Presidio Press, 1999. Reprinted with permission from Bradley, R.P. Hunnicutt ©1999, available from Presidio Press, 505B San Martin Drive, Suite 160, Navato, CA 94945.
  2. FMFM 9-2 Amphibian Vehicles. Washington, DC: Department of the Navy, Headquarters United States Marine Corps, 17 September 1964.
  3. Research, Investigation and Experimentation in the Field of Amphibian Vehicles. Kalamazoo, MI: Ingersoll Kalamazoo Division, Borg-Warner Corp., Dec 1957.
  4. Sola, Samuel, Vincent Bobkowski, and Kara Crocker. Weapon Mounts for Secondary Armament. Santa Monica, CA: G. O. Noville & Associates, Inc., April 1957.
  5. Crismon, Fred W. U.S. Military Tracked Vehicles. Osceola, WI: Motorbooks International, 1992.
Last updated 12 Mar 2024.
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