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Parallel Rule
Definition
A plotting instrument with two hinged rules used to transfer
bearings
on a chart.
More Navigation terms
Astern
Bearing
Byz
Chart Datum
COG
DR
Leeway
Leading Lights
NOAA
Running Fix
SOG
Transit
Wake
Height of Tide
Tidal Range
Spring Tide
Neap Tide
Rule of Twelfths
Drying Height
Under-Keel Clearance
Standard Port
Secondary Port
Tidal Diamond
Air Draught
Traffic Separation Scheme
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