Free t25 video series#

Army for a better tank than the 75В mm M4 Sherman, and so, lacking any insights from the rest of the Army as to what was needed, the Ordnance Department then took a developmental detour into electrical transmissions with the T23 series. Through much of 1943, there was little perceived need within the U.S. Note the vertical volute spring suspension. The T23 turret was used for the 76-mm M4 Sherman. T23 with production cast turret mounting 76В mm M1A1 gun. The T22E1 tested an autoloader for the main gun, and eliminated the loader's position with a small two-man turret.

Free t25 video series#

The T22 series reverted to the M4 transmission because of problems with the early Torqmatic transmission used in the T20. Later prototypes of the M26 tested a torsion bar suspension, which became the standard for future U.S. The T20 used an early version of the horizontal volute spring suspension (HVSS), another improvement compared to the less robust vertical volute spring suspension (VVSS) of the early versions of the M4. The T20's overall weight was approximately the same as the M4. The glacis plate slope was similar at 46В°. 5В in (13В mm) thicker than the 63В mm (2.5В in) front armor of the M4. New stronger steels were used to create a weapon weighing about 1,200В lb (540В kg). The T20 was fitted with the new 76 mm M1A1 gun, the 3-inch M7 was considered too heavy at about 1,990В lb (900В kg). The engine had originally been an effort by Ford to produce a V-12 liquid-cooled aircraft engine patterned after the Rolls-Royce Merlin, but failed to earn any aircraft orders and so was adapted as a V-8 for use in tanks use of this lower profile engine together with the choice of a rear transmission and rear sprocket drive layout made it possible to lower the hull silhouette and eliminate the side sponsons. The Ford GAN V-8, a lower silhouette version of the GAA engine used in later variants of the M4, had become available. The T20 was designed to have a more compact hull than the M4. Army had no doctrinal use for a heavy tank at the time. An earlier heavy tank, the M6, had been standardized in February 1942, but proved to be a failure. The T20 tank reached a mock-up stage in May 1942, and was intended as an improved medium tank to follow the M4. Army Ordnance began work on a follow-up tank. In the spring of 1942, as the M4 Sherman was entering production, U.S. These features accounted for the high silhouette and large side sponsons that were characteristic of the M4 lineage. The large diameter of the radial engines in M4 tanks added to the hull height. This layout required a driveshaft to pass under the turret, which increased the overall height of the tank, a characteristic shared with German tanks of World War II that also used this layout. These tanks all had rear-mounted Continental air-cooled radial aircraft engines and a front sprocket drive. Army's first lineage of tanks evolved from the M1 Combat Car and progressed to the M2 Light Tank, M2 Medium Tank, M3 Lee, and finally the M4 Sherman. This series of prototype vehicles began as medium tank project that was similar to, but more modern than the recently-introduced M4 Sherman, and ended several years later as the U.S. Some of these were experimental dead-ends, but many become permanent characteristics of subsequent U.S. Several design features were tested in the prototypes. Army tanks that had ended with the M4 Sherman. The M26 was the culmination of a series of medium tank prototypes that began with the T20 in 1942, and it was a significant design departure from the previous line of U.S. The lineage of the M26 continued with the M47 Patton, and was reflected in the new designs of the later M48 Patton and M60 Patton. It was withdrawn in 1951 in favor of its improved derivative, the M46 Patton, which had a more powerful and reliable engine and advanced suspension. Hunnicutt ranked the Pershing behind the German Tiger II heavy tank, but ahead of the Tiger I heavy and Panther medium tanks. Based on the criteria of firepower, mobility, and protection, US historian R. The M26 was intended as a replacement of the M4 Sherman, but a prolonged development period meant that only a small number saw combat in Europe. It was used in the last months of World War II during the Invasion of Germany and extensively during the Korean War. Pershing, who led the American Expeditionary Force in Europe in World War I. The tank was named after General of the Armies John J. The M26 Pershing was a heavy tank/ medium tank of the United States Army.