Lesson Quicktakes cover the items that should be memorized from each of the wifiCFI Lessons. They do not cover all of the lesson details in-depth.
COMPASS ERRORS (VDMONA):
V = Variation.
D = Deviation.
M = Magnetic Dip.
O = Oscillation.
N = Northerly Turning Errors.
A = Acceleration Errors.
The angular difference between True and Magnetic North.
Caused by the Electro-Magnetic Fields of the aircraft.
Corrected with a Compass Deviation Card.
The further a compass travels North or South the more it dips toward the North or South Pole.
Turbulence causes the compass to bounce around in its housing of fluid.
NORTHERLY TURNING ERRORS (UNOS):
ACCELERATIONS ERRORS (ANDS):