Tank
With World War II the multi-turreted tanks proved impracticable, and as the single turret on a low hull design became standard, crews became standardized around a crew of four or five. In those tanks with a fifth crew member, usually three were located in the turret (as described above) while the fifth was most often seated in the hull next to the driver, and operated the hull machine gun in addition to acting as a co-driver or radio operator. Well-designed crew stations, giving proper considerations to comfort and ergonomics, are an important factor in the combat effectiveness of a tank, as it limits fatigue and speeds up individual actions.
Oshkosh M911
In the second half of the 1970s, the US Army procured 1,000 of the heavy-haul truck - together with the four-axle M747 semitrailer - for road transportation of Main battle tanks
and other heavy loads. A tank often carried by the Oshkosh M911 was the M47 Patton. The Oshkosh M911 was also used with the US Army units stationed in Europe.
The Oshkosh M911 has a crew of 3, weighs 18.2 tons, and has a payload capacity of 68.95 tons. The Oshkosh M911 has a turbocharged 12-liter Diesel V-8 engine that produces 435 horsepower.