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Following and Quartering Sea (1/2) - Coggle Diagram
Following and Quartering Sea (1/2)
Serious control difficulties
Broaching
Turning broadside to the waves
Low frequency of encounter
3 possibilities
Overtaking Seas
Low frequency of encounter
Semistatic case
Zero freq of encounter
Following Seas
Low freq of encounter
Ship overtakes waves
Eda and Crane
Overtaking Seas
Yaw amplitude increases
with increased ship speed
Yaw amplitude decreases
decreases with shiplength
below Lw/L = 1
decreases slighly
Lw/L really high
Corrective rudder action
on onvertaking seas
very small effect
rudder forces are small