| HMS Nottingham : The engine room | |
| | | HMS Nottingham : The engine room
The main engines are Rolls-Royce Olympus gas turbines. When both are selected at full power they can drive the ship at around 30 knots.
The cruise engines are Rolls-Royce Tyne gas turbines. When both of these are selected at full power they will drive the ship at about 18 knots.
The cruise engines use a fifth of the fuel required by the main engines and are subsequently the preferred choice for normal running.
The gearbox is unidirectional and so the shafts always rotate in the same direction. In order to achieve astern propulsion a controllable pitch propellor is used. This allows the pitch of the propeller blades to be altered from ahead to astern whilst underway, without stopping the shaft or the engine. Continue the tour >> | | | |
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