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AT Basics > Basic Navigation > Flashcards

Basic Navigation Flashcards

1
Q

What direction do latitudes run? What direction do longitudes run?

A

Latitudes - East & West

Longitudes - North & South

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2
Q

What is a great circle?

A

Circle whose plane goes through the center of the earth

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3
Q

How is a nautical mile defined?

A

One minute of longitude at the equator. 6076.1 feet

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4
Q

What is the Prime Meridian?

A

Line of Longitude counted a 0 degrees

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5
Q

What is the shortest distance between two points on the Earth’s surface?

A

Great Circle Route

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6
Q

What is a Rhumb line?

A

Line of travel where the heading stays the same.

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7
Q

A Nautical Mile is ____ Statue Miles

A

1.15

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8
Q

What 2 places in aviation is Statue Miles used?

A

Visibility & Dimensions of Class D airspace

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9
Q

1 Knot = ___ MPH

A

1.15

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10
Q

What do we call Coordinated Universal Time?

A

Zulu

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11
Q

What is the difference between Indicated Speed, True Airspeed, Ground Speed, & Mach Number?

A

Indicated Speed - Aircraft airspeed shows
True Airspeed - Relative speed if no wind
Ground Speed - Speed relative to surface
Mach Number - Ratio of True Airspeed to
Speed of Sound

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12
Q

How is time calculated?

A

Distance traveled / Ground speed

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13
Q

How is speed calculated?

A

Distance traveled / Time

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14
Q

How is distance calculated?

A

Ground speed x Time

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15
Q

How long will it take a plane to travel 100 miles at 120 knots?

A

120 knots is 2 miles per minute, so

100/2=50 minutes

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16
Q

How fast is an aircraft going if it travels 15 miles in 6 minutes?

A

6 minutes is 1/10 of an hour, so 15 divided by 1/10 (same as multiplying by 10) is 150 knots

17
Q

How far did an aircraft with speed 300 knots go in 45 minutes?

A

300 knots is 5 miles per minute, so 45x5=225
or
45 minutes is 3/4 of an hour and 3/4 of 300 is 225

18
Q

What is magnetic variation?

A

Difference between true north and magnetic north

19
Q

What is an agonic line?

A

Line where true and magnetic north are the same (No magnetic variation)

20
Q

What is an isogonic line?

A

Line connecting points with same magnetic variation

21
Q

What is magnetic deviation?

A

Errors in compass due to structure and equipment in aircraft

22
Q

What is dead reckoning?

A

Navigation based on speed, course, heading, and time

23
Q

What is pilotage?

A

Navigation by landmarks

24
Q

What is radio navigation?

A

Navigation using radio navigational aids

25
Q

What is area navigation (RNAV)?

A

Navigation using radio navigational aids or GPS to go on a direct course

26
Q

What is GPS?

A

Navigation using satellites and a receiver to establish position

AT Basics (30 decks)

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