measurement of length equal to 1.6 kilometers or 5280 feet
What is statute mile (SM)?
100
a set of identification numbers and/or letters which are assigned to a geographic location or position based on a grid
What are coordinates?
100
a list of symbols and their meanings accompanying a chart, map, or illustration
What is a legend?
100
a navigation system which uses a large group of satellites to determine position
What is global positioning system (GPS)?
200
the intended route or direction to be followed
What is course?
200
horizontal direction in which the longitudinal axis of an aircraft is pointing
What is heading?
200
unit of measure for angles or arcs; 1/360 of the circumference of a circle
What is degree?
200
numbers shown on aeronautical charts that provide elevation information needed to clear obstruction; based on the highest natural or man-made point with a given grid square
What is maximum elevation figure (MEF)?
200
a precision instrument approach system designed to electronically provide a path for exact alignment and descent of an aircraft on final approach to a runway
What is an instrument landing system?
300
the average height of the surface of the sea; used as a reference for elevations in the US
What is mean sea level (MSL)?
300
unit of speed equal to one nautical mile per hour
What is knot?
300
a series of horizontal and vertical lines on a map or chart which intersect to create reference areas for location
What is a grid?
300
a series of short, parallel lines or stripes which are printed along the margin of a page
What are hash marks?
300
airborne and ground equipment used to measure the slant range distance of an aircraft (in nautical miles) from the navigation station
What is distance measuring equipment (DME)?
400
navigation of an aircraft from one visible landmark to another using only a chart
What is visual navigation?
400
the basic unit of air navigation; equal to 1.15 statute miles or 1.85 kilometers
What is nautical mile (NM)?
400
the distance north or south of the Equator measured by degrees from 0 to 90
What is latitude?
400
the ration between any given unit of length on a chart and the true distance it represents on earth
What is scale?
400
a radio navigation aid which provides 360 courses which extend outward from the station like spokes on a bicycle
What is very high frequency omnidirectional range (VOR)?
500
angular measurement in degrees, clockwise from 0 to 360
What is azimuth?
500
a navigation sortie in which the pilot flies low to the ground (500 to 2,000 feet) at a relatively high speed
What is low-level navigation?
500
an imaginary line on the earth (representing a course to be flown) that maintains a constant compass orientation between any two points and therefore crosses all meridians at a constant angle
What is a rhumb line?
500
the difference between degrees between true north and magnetic north; also known as magnetic declination
What is magnetic variation?
500
the horizontal bar on the course indicator or horizontal situation indicator which tells the pilot if he higher or lower than the transmitted (approved) glideslope