Created by Dutch cartographer in sixteenth century. Most widely used nautical chart. In this chart, the spherical globe is projected onto a cylinder-shaped paper then spread out flat.
What is Mercator Projection
100
An accurate position determined without reference to any previous position, using visual, economic, or celestial observations.
What is a Fix
100
Position is determined by the aid of heavenly bodies such as the Sun, Moon, and selected stars and planets.
What is Celestial Navigation.
100
Uses lines of position obtained by the use of radio waves to determine a ships position.
What is Electronic Navigation
100
Common name for the 180th meridian.
What is International Date Line.
200
Large scale charts that show harbors and their approaches in detail.
What is Harbor Chart
200
Lines along which the vessel must be located and are obtained by taking visual magnetic or gyrocompass bearings to landmarks or objects whose position is known and printed on a chart of the area.
What is Lines of position.
200
Means determining position, and directing the movements of a ship by using landmarks, constructed navigational aids, and water depth readings. The primary means of of navigation when entering or leaving port and in coastal navigation.
What is Piloting.
200
Originally for detecting surface forces and aircraft. RAdio Detection And Ranging.
What is RADAR
200
Meridians and equators that each divide the globe into two halves.
What is Great circles.
300
Intermediate-scale charts used to navigate a vessel whose position may be determined by landmarks and lights, buoys, or soundings offshore.
What is Coastal Charts
300
A circular line of position.
What is a distance arc.
300
Determines the depth of water under a ships keel by measuring the time it takes a sound to reach the bottom and return to the ship.
What is fathometer (or echo sounder)
300
A system of radio signals broadcast by groups of transmitting stations of known position. Replaced by GPS.
What is LORAN (LOng RAnge Navigation)
300
Shortest point between two points on a globe.
What is a great circle.
400
Small-scale charts showing the approaches to large areas of the coast. These charts show offshore soundings, principal light and outer buoys, and any natural landmarks visible at a distance.
What is General ocean sailing charts
400
An optical distance- measuring device that operates by measuring the distance of an object of known height, such as the masthead on a ship.
What is stadimeter
400
Determining a position from the direction and distance theoretically traveled from a known starting point, normally the last good fix.
What is Dead Reckoning
400
Uses highly precise gyroscopes along with a computer to track the platforms motion with great accuracy. Used mainly by subs and Aircraft carriers but is being implemented into more vehicles because of increased compactednessinges
What is SINS (Ships Inertial Navigation System)
400
Other lines that are like the equator except not. The lines that are parallel to the equator.
What is parallels.
500
italicized figures scattered on the water areas of maps representing depth. Can be meters or fathoms.
What is Soundings
500
The distance to a land mark may be measured by using ____, ____, or a ____.
What is radar, stadimeter, sextant.
500
Drawn on a nautical chart from every new fix in the direction in which the ship is proceeding.
What is a course line.
500
Newest navigational system to be invented by U.S. of fricking A.
What is GPS
500
Iamignary lnies taht run truhogh the ploes aorund the erath