How Does a 300-Meter Ship Actually Steer?

The rudder on a 300-meter container ship is about the size of a door on a house. The ship it steers weighs over 100,000 tons. That shouldn't work — and if the rudder were the only system doing that job, it wouldn't. In this video, we break down all four systems that actually keep a large ship on course: the rudder and its hydraulic steering gear, bow and stern thrusters for slow-speed control, azimuth thrusters that eliminate the need for a rudder entirely, and the gyrocompass autopilot that keeps the ship within meters of its planned route across thousands of kilometers of ocean. Most people think a ship steers like a car — turn the wheel, the ship turns. The reality involves minimum rudder angles, track-keeping autopilots, and rotating propulsion pods that can push water in any direction. We also cover what happens when steering fails, why shallow water makes everything harder, and the incidents where the difference between a course correction and a catastrophe was measured in seconds. Subscribe to The Engine Deck for a new engineering breakdown every week.