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Total record count: 6269.

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Eng ID Term Definition
6261
port fairway
The main navigable channel in a harbour or its approaches, for vessels of larger size.
6262
quarantine
The isolation of patients with contagious diseases.
6263
gross underkeel clearance
The UNDERKEEL CLEARANCE allowing for a vessel’s static DRAUGHT only.
6264
net underkeel clearance
The UNDERKEEL CLEARANCE remaining after allowing for all margins relating to DEPTH, ship DRAUGHT and ship movement.
6265
margin to cater for ship movement
Margin to cater for SQUAT, HEEL, HEAVE, PITCH and ROLL.
6266
margin to cater for uncertainties of observed depth accuracy
Margin to cater for uncertainties of the charted water DEPTH. This margin considers uncertainties of tidal height in tidal areas, or height ... more
Margin to cater for uncertainties of the charted water DEPTH. This margin considers uncertainties of tidal height in tidal areas, or height with respect to the surface of still water in non-tidal areas, comprising tidal height during transit and manoeuvring ACCURACY, SOUNDING or dredging execution ACCURACY, and SILTATION of soundings.
6267
margin to cater for uncertainties of ship draught accuracy
Margin to cater for uncertainties in a vessel’s reported DRAUGHT, or DRAUGHT reading.
6268
static draught (or draft)
The vertical distance from the bottom of the keel to the water line when the vessel is not making way or subject to SEA and SWELL influences... more
The vertical distance from the bottom of the keel to the water line when the vessel is not making way or subject to SEA and SWELL influences. See DRAFT (or DRAUGHT).
6269
Knots
A nautical unit of SPEED. One knot is one NAUTICAL MILE per HOUR. The name is derived from the KNOTs in the LOG LINE.