15 / 20

The residual deviation after the compass swing procedure is…

  • A
    noted on a compass deviation correction card.
  • B
    almost zero, so can be disregarded for the flight.
  • C
    eliminated when the avionics are switched on.
  • D
    indicated on the magnetic compass by small red dots.

1. Compass swing – determines the amount of deviation, which is induced by other magnetic materials, electrical currents, airframe, etc. During this procedure, the aircraft is turned through a series of headings and the readings from the aircraft’s compass are compared to an accurate reference compass which is independent of the aircraft’s compass. This procedure is carried out on a specially prepared surface of an airfield, known as the ‘compass base’ or a ‘compass calibrated pad where a compass rose is painted.

2. Compass calibration – recording of the residual deviation found from the compass swing on a deviation card so that the pilot can calculate the real heading by subtracting/adding the recorded value from the card.

3. Compass compensation – correction of the deviation caused by the aircraft magnetism.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

  • Austro Control
    33
  • Spain
    20
  • United Kingdom
    18
  • Greece
    13
  • Germany
    12
  • Ireland
    6
  • Poland
    6
  • Hungary
    5
  • Malta
    5
  • Portugal
    5
  • Lithuania
    4
  • Italy
    3
  • Belgium
    2
  • Denmark
    1
  • Iceland
    1
  • Pakistan
    1
  • Romania
    1
  • Slovenia
    1
  • Switzerland
    1
Keyboard Shortcut Use Keyboard Shortcuts