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Speed of Approach - Coggle Diagram
Speed of Approach
Judge Speed
Doppler Log
GPS / DGPS
Fixes by Radar or Visual bearing
Nor really accurate
Ship`s quickwater with engine astern
Behind vessel - Around 3kn
Moving with ship - Around 2kn
Reaches midsection - Dead
Observe passing objects
Differences
Speed over ground
How fast / slow she will reach the berth
Speed through water
affects ship`s response to rudder
Speed reduced
to bare steerageway
Use short bursts
with hard-over rudder