Nav Standards Flashcards
Nav Draft
6ft
fixed height
7ft 10
unfixed height
9ft 10
Transducer offset
1.5
Define Nav Draft
The depth of water that serves as the threshold for safe operations by the CO.
Shoal Water
waters less than 6ft and waters 0.1 NM away (200yds)
Restricted Waters
Narrow channels, rivers, sounds, bays, harbors or harbor entrances and up to 1000 yds from shore.
Coastal Waters
Those that are between 1000 and 2nm offshore
Open Ocean
2nm from shore or shoals or other known hazards.
Interval for position accuracy Shoal water
3 min
Interval for position Restricted Waters
10 min
Interval for position for Coastal
15 min
Interval for Open Ocean position
30 Min
OPAREA 1
New Orleans Inner harbor and industrial canal from the entrance to lake pontchartrain up tp industrial locks.
OPAREA 2
Mississippi River from the ferry landing at English Turn MM75.4 to MM98.3