nautical units and maps Flashcards
1
Q
Fathom
A
equivalent of 6 feet
2
Q
fathom curves (bathymetric lines)
A
grouping of fathoms ex. 20 fathoms = 120 feet, 50 fathoms = 300 feet etc
3
Q
nautical mile
A
= 1.1508 miles , 6076 ft
distance of one natuical miles equals to one minute of latitude on a chart
4
Q
cable length
A
600 feet
5
Q
knot
A
= 1.1508 miles
6
Q
beaufort scale
A
0 knots = calm
22 -27 knots = strong breeze
48 - 55 knots = storm
64 knots and above = hurricane
7
Q
cardinal directions
A
degrees are measured starting north and traveling clockwise. North = 0 degrees east = 90 degrees south 180 degrees west = 270 degrees
