Four identical engine modules with Schottel pump-jets are used for main propulsion.

The four main engines are all used for lift and all used for main propulsion.

The main propulsion comes from a pair of ducted propeller thrusters with one mounted on each side.

A development of the T-64, it entered service in 1976 and was the first production tank to be equipped with a gas turbine engine for main propulsion.

For many years western analysts denied the usage of gas turbines as main propulsion.

Beck knew that to draw current from the main propulsion turbogenerators would slow the ship, the last thing he could afford.

His luck continued even when the main propulsion section-the swollen lungs of the chemical fuel tanks-went up.

A jet engine providing 1700 pounds of thrust was used for main propulsion.

The main difference is the installation of a pump-jet engine to supplement the main propulsion.

There are two types of diesel engines used on large ships: main propulsion and auxiliary engines.