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    Landing Vehicle Tracked (LVT-2 / LVT-4) (Alligator / Water Buffalo) Amphibious Personnel Carrier (1941)

    Landing Vehicle Tracked (LVT-2 / LVT-4) (Alligator / Water Buffalo) Amphibious Personnel Carrier (1941)

    LVTs served the US Marines well in their island-hopping campaigns across the Pacific Ocean in World War 2.

    Staff Writer (4/25/2015): The LVT ("Landing Vehicle Tracked") began a long line of amphibious tracked American military vehicles for the US Army and Marine Corps that still continues today. The LVT of World War 2 fame had its origin in a tracked civilian design (known as the "Alligator") by American Donald Roebling, Jr. Roebling specifically designed his Alligator amphibious LVT as a rescue vehicle to be utilized in the heavy Floridian swamp region to which its robust tracked nature and boat-like qualities made it an ideal vehicle for such unforgiving terrain. Seeing the value of such a machine, and coupled with the fact that world war was closing in on American soil from two oceans, the United States Marine Corps talked to Roebling about modifying his design for military use in 1940. As the Marine Corps were trained to fight on land from water, and the biggest threat to America now being the Empire of Japan in the West where island-hopping was soon to prove the norm, it seemed like a good fit.

    Roebling delivered the first incarnation of his civilian design with the "LVT-1" and production by Food Machinery Corporation began soon afterwards in 1941 with 200 contracted vehicles. The LVT-1 sported a top speed of 12 miles per hour and armament was either 2 x 0.30 caliber general purpose machine guns or 2 x 0.50 caliber heavy machine guns mounted on rails or pintle mounts with optional limited shielding. Troop capacity was 18 to 24 combat ready soldiers. After some experience, four guns - two of each type - were being fitted forward and aft of the loading area for maximum support defense. Power was derived from a single Hercules WXLC-3 engine. Some 1,225 examples of the LVT-1 series were ultimately produced. It is of note that LVT-1 series models were not armored in any way beyond their factory "skins" and were generally intended as resupply vehicles.

    The LVT-1 was modified with the next variant, the LVT(A)-1 of 1942 ("A" signifying "Armored"), to serve as a fire support vehicle with the installation of an M3-style tank turret (37mm gun), rear-mounted machine guns and armor plating. The engine was changed over to a single Continental W970-9A series but remained largely faithful to the original LVT1. A total of 510 examples were delivered. However, the LVT1 production model was still too closely tied to its civilian roots to make it an adequate "weapon of war" for the sake of amphibious assaults. Armor protection was still too thin for comfort and maintenance issues grew over time to make critical systems quite unreliable. These issues required the LVT to undergo further refinement.

    The first truly notable LVT development came next with the arrival of the LVT-2 ("Water Buffalo" / "Buffalo II") in 1942. This production version revised the general hull shape to more closely mimic that of a boat for improved water traversal. A new suspension system was introduced for better terrain capability and bolt-on aluminum track grousers were installed for ease of maintenance and repair. As the M3A1 Stuart light tank was in full production by this time, it made logistical sense to utilize its existing components - namely the powertrain - in the revised LVT-2. The engine was now relocated to the back of the hull with the crew cabin moved to the front. The onboard arrangement then left the central portion of the hull to be hollowed out and used for cargo or passengers (this area was still left "open-topped"). However, this revision led to a few inherent restrictions - namely, the centralized location of the loading area restricted the LVT-2 to carrying just infantry and some light equipment with applicable supplies. Since there was no loading ramp, infantry would have to scurry off the vehicle over the hull sides under their own power in full combat gear, utilizing precious energy in the process while exposing themselves to the risks of the modern battlefield - risks such as machine gun and small arms fire. Vehicles and valuable towed artillery pieces, therefore, could not be carried in such a space restricted with only a topside entry/exit access point.

    The LVT(A)-2 of 1943 was nothing more than an LVT-2 production variant with armor protection. Troop capacity was eighteen and some 450 examples were produced.

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    Technical Specifications:
    Landing Vehicle Tracked (LVT-2 / LVT-4) (Alligator / Water Buffalo)
    Amphibious Personnel Carrier

    Country of Origin: United States
    Manufacturer: State Factories - US
    Initial Year of Service: 1941
    Production Total: 18,614

    Focus Model: Landing Vehicle Tracked (LVT-4) (Alligator)
    Crew: 3

    Overall Length: 26.08 ft (7.95 m)
    Width: 10.66 ft (3.25 m)
    Height: 8.17 ft (2.49 m)
    Weight: 20.0 US Short Tons (18,188 kg; 40,098 lb)

    Powerplant: 1 x Continental W-670-9A 7-cylinder 4-cycle gasoline radial engine developing 250 horsepower.

    Maximum Speed: 20 mph (32 km/h)
    Maximum Range: 149 miles (240 km)

    NBC Protection: None
    Nightvision: None

    2 x 0.50 M2HB Browning heavy machine guns on mounts.
    2 x 0.30-06 M1919A4 Browning general purpose machine guns on mounts.
    1 x 35mm main gun in powered turret (fire support models).
    1 x 75mm main gun in powered turret (fire support models).
    2 x Wasp flamethrowers (British Far East)
    1 x 20mm Polsten cannon (British marks)
    1 x Ronson flamthrower (Canadian)

    100 x 0.50 caliber ammunition
    6,000 x 0.30 caliber ammunition

    LVT-1 - Initial Military Variant of 1941; 24 troop capacity; 2 x 0.30 caliber machine guns on pintle mounts (initial); no direct armor; 1,225 examples produced.

    LVT(A)-1 - Appearing in 1942; armored version of the base LVT-1.

    LVT-2 "Water Buffalo" - M3A1 light tank powertrain; new suspension system; 2,962 examples produced.

    LVT(A)-2 "Water Buffalo" - Armored LVT-2 variant; 18 troop capacity; 450 examples produced.

    LVT-4 "Water Buffalo" - Engine moved to forward compartment; rear set loading area with ramp; various armmanet fittings; 8,351 examples produced.

    LVT(A)-3 - Proposed armored LVT-4; never produced.

    LVT-3 "Bushmaster" - Engines relocated to hull sponsons; rear ramp; 2,964 examples produced.

    LVT-3C - Appearing in 1949; armored roof covering; redesigned bow; turret fitting 1 x 0.30 caliber machine gun; 1 x 0.30 caliber machine gun in ball mounting in bow; 1,299 produced.

    LVT(A)-4 - Fire Support Variant; fitted with M8 open-topped turret and 75mm main gun; 1 x 0.50 caliber machine gun over turret or 2 x 0.30 caliber machine guns on pintle mounts and 1 x 0.30 caliber machine gun in bow mounting; 1,890 examples produced.

    LVT(A)-5 - Fitted with powered turret; gyrostabilized howitzer; 269 examples produced.

    Sea Serpent - British designed LVT-4; fitting 2 x Wasp flamethrowers and 1 x 0.30 caliber machine gun for Far East operations.

    Buffalo II - British Designation for LVT-2

    Buffalo IV - British Designation for LVT-4

    Amphibian, Tracked, 4-Ton GS Neptune - British Development; based on the LVT-4 model.

    Amphibian, Tracked, 4-Ton GS Sealion- British Development; Recovery Vehicle.

    Amphibian, Tracked, 4-Ton GS Turtle- British Development; mobile workshop platform.

    Canada; United Kingdom; United States