Turning circle

Turning circle

When vessel alters her course under helm through 360˚and she moves roughly circular path called a turning circle

Factor affecting turning circle:

  1. Speed
  2. Depth of water
  3. Rudder angle
  4. List
  5. Propeller immersion
  6. Wind, current and tides(external forces)
  7. Draft
  8. Loaded/ ballast condition 

The turning circle of a loaded ship will be more as compared in ballast condition. (Click here)

The stopping distance of the loaded ship will be more than the ship when in ballast

The stern power of the ship is the same when loaded or in ballast. As the astern power has to over come much more momentum for stopping a loaded ship will take longer to stop and will therefore travel (track reach) much more than when in ballast before coming to a dead stop.

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