Nautical Terms and Navigation

Marine Biology

Boat Top View

Boat Side View

Other Nautical Terms• Line- Rope used to secure a vessel• Dock- Enclosed area used to secure a vessel• Cleat- device to secure a vessel to a dock with a

line• Draft- Depth of a vessel as it moves through the

water• Beam- Width of a vessel• Bumper- Device used to keep a vessel from

rubbing on a dock • Bouy- Markers used to indicate danger or

important point

Navigational TermsCardinal Points N, S, E, W

Inter Cardinal Points

NE, NW, SE, SW

Combination points

(22 ½ degrees)

NNE, ENE,

ESE, SSE,SSW, WSW, WNW,NNW

Find the Bearings of the following points (Note the variation of Magnetic North to True North)

Magnetic North

• True North• Magnetic North

• Variation in degrees depends on the latitude and longitude you are located at.

• Magnetic North shifts slightly annually.

• What would the course heading be for 270 degrees if the magnetic north was 5 degrees west of the true north?