This led to the relocation of the pressure pump between the tank and the nozzle. The fuel tank and cockpit protection armour were removed. So they make a little aquarium tank. The fuel tank and side covers are black. The rocket broke apart on impact with the external fuel tank. A small instrument panel appeared on top of a restyled dummy fuel tank. Range is increased by with an auxiliary fuel tank and aerodynamic improvements. It is kept liquid at in an insulated "cold" storage tank. A train carries guests into a tunnel running through a 250,000-gallon shark tank. One reason is to change the type of product carried inside a tank. This was the last Soviet heavy tank to enter service. A History of the American Heavy Tank. Canada also produced its own medium tank, the Ram. Simple metal tank stands are also available. The system is currently incapable of defeating kinetic energy tank rounds.