Comparing: T-54 first prototype vs. M46 Patton KR

Developed at Factory No. 183 in 1944. It was based on the T-44, with many components modified to enhance the armor and armament of the new vehicle. According to one source, the first prototype was built at the end of 1944. However, some other sources mention another date—January 1945. The tank underwent trials in March and April 1945, but never entered mass production.

The first M46 tanks that landed in Korea belonged to the 6th Medium Tank Battalion. The vehicles, known as “Ripper Pattons”, were later allocated to the 8th Army and used by infantry forces as support vehicles. However, in 1950 and 1951, the M46 also saw action in several tank battles. By June 1951, the front line had stabilized and the mobile stage of combat action had finished, so the army started to use the vehicles in an artillery role. Along with other U.S. tanks that fought in Korea, M46 tanks were painted with "Tiger Face" markings.