M1 Abrams tank — during operations the crew may spend hundreds of hours inside with very little sleep. Its caterpillar tracks allow it to traverse very rough terrain. #3daniamtion #howitwork #tank ...

Armourgeddon’s Caterpillar D4 and D6 bulldozers are used to keep the tank track level and usable through wet British winters. The video shows how the smaller dozer has seized up after sitting too long ...