API Navigation

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Author:
beardpapa
ID:
150672
Filename:
API Navigation
Updated:
2012-04-29 21:41:52
Tags:
API 12 25
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Description:
Navigation Knowledge
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  1. TPC
    • 1:500,000
    • Tactical Pilotage Chart
    • Lambert Conformal
  2. Lambert Conformal
    • Parallels: equally spaced concentric circles
    • Meridians: straight lines converging at poles
    • Scale: constant distance
    • Great Circle: Plot as straight lines
  3. Course
    intended flight path
  4. heading
    angular distance of the aircraft's longitudinal axis from a reference
  5. Track
    acual flight path over the ground
  6. Variation
    angular difference between true north and magnetic north
  7. isogonic line
    connects points of equal variation
  8. Mag Var Formulas
    • MC=TC - East Var
    • MC=TC + West Var
  9. Each time zone is centered on a meridian that is a multiple of ________ degrees.
    15
  10. On lambert conformal one nautical mile equals __________ and can be measured along a __________ line.
    one minute of arc , longitude
  11. All merdians of Lambert conformal charts are oriented toward (true/magnetic) north pole.
    true
  12. _________ is a chart made from a cylindrical projection.
    Mercator
  13. Primary and Secondary Compass Systems
    Primary: Remote Gyro Vertical Compass Card
  14. Secondary: Stand-by Compass (Wet Compass)
  15. Three types of Electronic Navigation
    Signals from Ground Stations (TACAN, VORTAC etc)

    Self Transmitted Signals (Radar, Doppler etc)

    Inertial Navigation System
  16. Tacan radials are (true/magnetic)
    magnetic
  17. For every ______ degrees celsius the temperature varies from standard, the altimeter will be in error ______%.
    11 , 4
  18. Enroute winds from a forecaster are ______ winds while surface winds received from ATC and Approach/Departure Control are ________ winds.
    true, magnetic
  19. Drift Angle
    the angle between true heading and track
  20. Air Vector
    TH/TAS
  21. Ground Vector
    TC/GS
  22. 10% Rule
    if the crosswind component is 10% of true airspeed, the Crab Angle should be 6 degrees.
  23. Crab Angle
    amount of correction an aircraft must be turned into the wind in order to maintain desired course
  24. The primary purpose of a jet log is _______.
    fuel management
  25. How do you find CAS?
    IAS corrected for instrument error
  26. How do you find GS?
    TAS corrected for head or tail winds
  27. In order to find TAS, what information do you need?
    PA, CAS, OAT
  28. What information do you need to find the Mach number?
    CAS and PA
  29. What information do you need to calculate inflight winds?
    TK, TAS, Winds
  30. What are the 4 steps in flight planning?
    • 1. True course and direction
    • 2. True heading and Ground speed
    • 3. Estimate time en-route using GS
    • 4. Use time to estimate fuel consumption.
  31. What is the main means of Navigation?
    Dead Reckoning
  32. What are the 4 factors of Navigation?
    Speed, Position, Direction, Time
  33. How many great circles are Latitude Lines, Which ones?
    1, Equator
  34. What is the prime meridian?
    The Great Circle that passes through Greenwich England
  35. What is the 180 meridian?
    International Date Line
  36. What are the main instruments used in Navigation?
    Clock, BDHI, and Airspeed Indicator
  37. What are the 2 secondary instruments used in navigation?
    Altimeter, OAT Gauge
  38. What is the Remote Gyro Vertical Compass Card?
    The BDHI. It is the primary means of direction.
  39. What are forms of Ground Based Radar?
    VORTAC and TACAN
  40. What are forms of space based radar?
    Satellite
  41. What are Longitude great circles referred to as?
    Meridians
  42. What are the two types of charts used in Air Navigation?
    • Operational Navigation Chart (ONC)
    • Tactical Plan Chart (TPC)
  43. What is a Lambert Conformal Chart?
    A conformal chart where the parallels are curved and the straight lines are the meridians
  44. What is used to measure True Course?
    Meridians
  45. What is the plotter used for?
    To measure direction
  46. What are Dividers used for?
    To measure distance
  47. How many degrees are in 1 hour of rotation?
    15
  48. How do you find IAS?
    Read it off of the cockpit gauge

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