VT(A)1 Amtrack

US tanks ww2 USA (1942) Amphibious Tank - 510 built

The first infantry support LVT

With the first experiences with amphibious operations in the Pacific, it quite quickly became apparent that the LVT's standard firepower was not enough to deal with the bunkers, pillboxes and solidly entrenched positions of the Japanese. Heavier firepower than the usual .5o cal (12.7 mm) was needed. So the idea came to convert some production LVT-2 Water Buffalo as fire support ships with M3 Stuart-like light tank turrets. The "A" stands for armored. 510 units were produced by the Food Machinery Corp. until replacement in 1944 by the better-armed LVT(A)-4s.


Based on the LVT-2 Water Buffalo, this fire support version had extra armor and was fitted with a turret nearly identical to that of the Light Tank M3 (modified M5A1 turret), with a standard 37 mm (1.47 in) rifled Gun M6 (L/53 -10°/25° elevation), in a M44 mount, and coaxial .30 cal in the turret. Two rear-mounted Browning M1919A4 machine guns were placed immediately after the turret, protected by standard Navy flat shields, and back gun-tube shields which protected the sides and rear of the gunners. The 37 mm was able to destroy light pillboxes and moderately thick concrete obstacles with its HE rounds but it was more efficient with AP rounds against other tanks and dug-in metal casemates (up to 48 mm/1.89 in penetration at 500 m). The entire deck was covered and armored against shrapnel, while the front was protected by 51 mm (2 in) of armor. The front drive compartment was modified, as the right-hand side became the ball-mounted gunner position for an extra cal. 0.3 (8 mm) machine-gun. The compartment was then elongated backwards in a well-sloped tumble-home on which the turret was mounted. Other than that, its specifications and arrangement remained identical to the regular LVT-2, like the bolted-on grousers for easy replacement and rear engine. The crew of six had to share the internal space with numerous ammo racks. There was no room for transporting extra troops, so this amphibious tank was a pure support vehicle. On land, these vehicles were capable of 40 km/h (25 mph), but they could only 11 km/h (7 mph) when swimming. They were able to climb a 0.91 m vertical obstacle, gap a 1.52 m trench, climb a 60% gradient, and the range was about 121/201 km (water/land).

The LVT(A)-1 in action

The LVT(A)-1s soldiered throughout the Pacific campaign. At Roi, the men of the 24th Marines were supported by these vehicles, but the reception was mild at best: They just could not close up enough to effectively support the troops on the beaches. This was noticed by Col.Hart, the regimental commander. He instead planned that these tanks would precede the infantry assault and eventually lead the advance far inland. In fact, these objectives were never reached and the vehicles ended up firing from afar, without much precision. They were slowed down or stopped by lagoon antitank obstacles and ditches. Other LVT(A)-1s also supported the 22nd Marines landing at Engebi. By mid-1944, they were all replaced by much more capable 75 mm (2.95 in) gun armed LVT(A)-4s.


Extended specs on afvdb.50megs.com
Surviving LVTs (The Shadocks, pdf)

LVT(A)-1 specifications

Dimensions 7.95x 3.25 x3.07 m (26'1''x10'7''x10'1'')
Total weight, battle ready 14.8 tons
Crew 6 (driver, commander, 4 gunners)
Propulsion 250 hp, Continental W-670-9A
Transmission Synchromesh, 5fw/1rv speed
Suspensions 11 independently sprung/track Torsilastic
Speed (water/land) 40/11 km/h (25/7 mph)
Range 201 km (125 mi)
Armament 37 mm (1.46 in) M6 gun 4x 0.30in (8 mm) Browning M1919A4
Armor From 8mm (deck, roof) to 51 mm front (0.3-2 in)
Total production 510 in 1942-1944
LVT(A)-1 in Marine blue livery

LVT(A)-1 in Marine blue livery

LVT(A)-1 in a camouflaged livery

LVT(A)-1 in a camouflaged livery. As of today, surviving vehicles are visible at the National Armor and Cavalry Museum, Fort Benning, GA (not public), at Fairmount Park, Riverside, CA, and the World War II and Korea LVT Museum, Camp Pendleton, CA. There is also one identified rusty wreck on Peleliu Island (Republic of Palau).


Front view of an LVT(A)-1, 1942 US archives official ordnance description.

Front view of an LVT(A)-1, 1942 US archives official ordnance description.

LVT(A)-1 swimming - Source: Wikipedia

LVT(A)-1 swimming - Source: Wikipedia

LVT(A)-1 viewed from the front - Source: WWII VehiclesA rear machine-guns, with its shield, is visiblein this photo - Source: alltanks.ruA 1942 schematic of the LVT(A)-1LVT(A)-1 strolling on a beach.A rear view of the LVT(A)-1

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