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Directional Stability - Coggle Diagram
Directional Stability
Negative
Rudder amidships
Swings increasing rate of turn
More rudder needed
for longer
to check swing
In channel
difficult to check swing
Geometry
Full-bodied
Open stern
Full sections forward
Trim by the HEAD
Neutral
Rudder amidships
no tendency to
increase or decrease rate of turn
Continues in present rate
until external forces take charge
Positive
Rudder amidships
Steadies Up
More unstable
When Pivot point shifts ahead