Lot 1085

The Littlefield Collection

M5 Stuart Tank

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$310,500 USD | Sold

United States | Portola Valley, California

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Addendum: PLEASE NOTE: This lot is being sold on Bill of Sale only

Weight: 16.5-tons (15,045-kg)

Length: 14' 6” (4.31-m)

Width: 7' 4” (2.23-m)

Height: 8' 6” (2.59-m)

Crew: 4

Armor:

Hull front: 1.125” (29-mm)

Turret front: 1.5” (38-mm)

Weapons:

-Primary

1x 37-mm Gun M6

-Secondary

3x .30-cal M1919A4 Machine Guns

-Ammunition

123x 37-mm

6,250x .30-cal

Engine: Twin Cadillac Series 42 16-cylinder (8/engine), 220-hp (110-hp/engine)

Power/weight: 13.3-hp/ton

Fuel Capacity: 89-USG (337-l)

Range: 100-miles (160-km)

Speed: 36-mph (58-km/h)

The tank being offered, M5 Stuart, serial number 610, was built in September 1942 by Cadillac in Detroit, Michigan. The exterior has been cosmetically restored. It has been re-engined with an Oldsmobile V-8 and a General Motors automatic transmission. The wheels and tracks are serviceable. It runs and drives very well using fuel from one of its gas tanks. All hatches open and close. The driver's controls and instruments are present and function normally. Both the driver and bow gunner’s seats are present. The turret basket is present and has the crew seats mounted. The turret traverse controls are present on the turret ring. It was run as recently as January 2014, and has received a fresh cosmetic restoration.

Due to an expected increase in the demand for air-cooled radial engines in early 1941, Ordnance sought additional sources of engines for light tanks. In June 1941, authorization was given for twin Cadillac automobile engines with Hydra-Matic transmissions to installed in a M3 light tank. Designated as the light tank M3E2, it completed a 2,000-mile endurance test at the General Motors Proving Grounds. The vehicle had many advantages over the radial powered M3 including quieter operation, low temperature starting and a reduced driver workload. The tank was assigned the designation light tank M4 in November 1941.

In October 1941, the Ordnance Committee authorized that a new light tank, designated M3A1E1, be constructed from welded homogeneous steel armor. As the new M4 light tank was supposed to be assembled using the same method, the projects were combined in late November 1941. The new tank had sloping front armor with the driver and bow gunners each having their own hatch. The tank was equipped with the same turret as the M3A1 light tank.

With the production of the M4 medium tank starting in February 1942, the M4 light tank was changed to the M5 in order to prevent confusion. M5 production began in April 1942 at the Cadillac Division of the General Motors Corporation in Detroit. 1,470 M5's were built there until production ceased in December 1942. A further 354 were built at the GM plant in Southgate, CA between August and December 1942. The Massey Harris Company between July and December 1942 built a further 250. This gave a total production run of 2,074.

The M5 first saw combat with U.S. Forces in North Africa in late 1942. They remained in service throughout 1943 and into early 1944 when the later M5A1 light tank mostly replaced them. Some were brought out of storage in late 1944 and early 1945 to make up for the heavy losses occurred during the Battle of the Bulge that took place in December 1944/January 1945.

Transport Cost to Storage: $1,980