Today in WW II: 18 Sep 1939 Soviet troops link up with German troops at Brest Litovsk and Vilna, dividing Poland.  More 
18 Sep 1943 US Army, Marine, and New Zealand troops land on Vella Lavella, fifteen miles northwest of Kolombangara, between New Georgia and Bougainville, Central Solomons.
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M-103 Heavy Tank

The M-103 (T43 in prototype) was authorized in 1952, the first US heavy tank. The design was not very successful, especially its underpowered engine. It served as a back-up tank destroyer until replaced in 1963 by the M-60 Patton Tank. Only 200 of these M-103s were produced.

The M-103 was armed with a 120mm main gun plus two .50 cal. machine guns. It weighed 62.5 tons and was powered by the Continental AV 1790-5B gasoline engine used in the M47/M48 series tanks.

T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit
T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit.

T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit
T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit.

T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit
T43/M-103 at 4th Infantry Division Museum, Ft. Hood, TX, 2 December 2005. Photo: Courtesy of Bob Pettit.