LESSON 15

The Prime Meridian is also called ____ and _____.

0 degree meridian greenwich meridian

The equator is at ____ latitude?

0 degrees

An aircraft departs Denver at 9 PM (MST) and travels 3 hours, landing in Boston (EST), what is the aircrafts arrival time UTC?

0700

A nautical mile equals ___ statute miles?

1.15

100 nautical miles equals ___ statute miles.

115

A pilot has determined the true heading from OKC to kansas city is 20 degrees. The magnetic variation is 7 degrees E. What magnetic heading should be flown?

13 degrees East is least, West is best

2 PM on a 24 hour clock is?

1400

Each time zone is ___ degrees wide starting at the ___

15 degrees Prime Meridian

Time zones are established for every ____.

15 degress of longitude

An aircraft encounters a 20 knot crosswind and makes no heading correction, After 1 hour of flight how far off course would the aircraft be?

20 NM

How many time zones is the earth divided into?

24 beginning at 0 degrees longitude

How long would it take an aircraft at a ground speed of 130 knots to fly 650 NM?

5 hours

The north pole is at ____ latitude and the south pole is at ____ latitude.

90 degrees N latitude 90 degrees S latitude

A line that connects points of zero variation?

Agnotic line

Connects points of zero variation

Agonic line Only one!

IAS Indicated airspeed

Airspeed shown on the aircrafts indicator Used in pilot/controller situations

Coodinated Universal Time UTC

Also referred to as "zulu" time, based on a 24 hour clock

Method of navigation which permits aircraft on any desired flight path within the coverage of ground or space based navigation aids or within the limits of capability of self contained aids, or a combination of these.

Area Navigation (RNAV)

When can longitude be used as a scale to measure distance?

At the equator, 1 minutes equals 1 nm

How do you convert from LST to UTC?

Convert the time into 24 hour clock Determine appropriate conversion factor Easter +5 Central +6 Mountain +7 Pacific +8

How do you convert daylight savings time to UTC?

Convert to 24 hour clock, adjust for zulu time, subtract one hour

Positions on the earths surface are described in terms of?

Coordinates

Positions that describe a navigationall point on the earth's surface?

Coordinates

Navigation soley by means of computations based on airspeed, course, heading, wind direction and speed, goundspeed, and elapsed time?

Dead reckoning

Parallels and meridians are divided into ___ , minutes, and seconds

Degrees

Parallels and Meridians are divided into?

Degrees, minutes, and seconds

Compass heading is the magnetic heading corrected for?

Deviation Deviation is the error of a magnetic compass due to magnetic influence in the structure and equpitment in the aircraft, the deviation card is mounted near the compass.

Wind is stated with which 2 things?

Direction is coming from Velocity in knots

Statute Mile

Equal to .87 nm

Nautical Mile

Equal to 1.15 sm

The only line of latitude that is a great circle?

Equator

A pilot files waypoints on a RNAV route as if they were?

Ground based NAVAID

IAS is less accurate at?

Higher altitudes because the air is less dense

At high altitudes?

IAS is less accurate

Track

Is the actual path that the aircraft has flown over the earth's surface

Variation

Is the angular difference between true north and magnetic north

Drift angle

Is what any free object will do as the air moves downward with the speed of the wind Drift = Speed of wind

Points of equal difference between true and magnetic north?

Isogonic lines East is least/ West is best!

Parallels?

Latitude lines that run east to west

Cicles parallel to the equator are called?

Latitudes

Rhumb Line

Longer then a great circle route, it doesnt adjust its angle as it crosses meridians

The Prime Meridian is the reference line used to measure ____ ?

Longitude

Meridians?

Longitude lines that run north and south connecting the earth's poles

The purpose of parallels of latitude is for measuring degrees of latitude ___

North and south of the equator

The basic form of navigation which uses visual reference to landmark is?

Pilotage

Pilot flies landmark to landmark by visual references?

Pilotage Useful only in VFR weather Basic form of navigation for a beginning pilot

Coordinates?

Places where meridians and parallels cross

What does GPS need to function?

Proper reciever on the aircraft

Method of determining and maintaining a desired course or determining an aircrafts position by use of radio navigation aids on the ground?

Radio navigation

Mach number

Ratio of true airspeed to the speed of sound, expressed in decimal form

The Prime Meridian is the?

Reference point of lines of longitude sitting at 0 degrees longitude

TAS True airspeed

Relative to undisturbed mass, used in flight planning, referred to as "true airspeed"

True Course

Represents the intended path of the aircraft over the earth's surface

GS Ground speed

Speed of an aircraft in relation to the surface of the earth, its true airspeed corrected for effects of wind

Groundspeed is increased by ___ and reduced by ___

Tailwind Headwind

Great Circle Route

The shortest distance between two points on a shere, adjusts its angle as it crosses every meridian

Magnetic heading is true heading adjusted for?

Variation

The angular difference between true and magnetic north at a given location is called?

Variation

RNAV equiptment provides pilots with computed ___ on the direct route the pilot entered into the system.

Waypoints

GPS is accurate 24 hours a day and is unaffected by?

Weather

True airspeed is not affected by?

Wind

True heading is true course adjusted for?

Wind drift

Coordinated Universal Time UTC is also referred to as ___ time.

Zulu