Instruments

Question 1

Magnetic Compass

Answer 1

Magnetic Dip is one of the major causes of a compasses errors

Compass errors continue during banking turns or change the airspeed. causing the heading to be incorrect on the compass. Errors are greatest when banking and turning on north and south headings.
Lag correlates with North headings and Lead correlates with South headings. the error can be generally 30 to 35 degrees in the lower 48 states

Compass turns should be done on shallow banked turns.

the compass functions best during straight and level flight.

N North
O Opposite
S South
E Exaggerate

There is no lead or lag on headings of east or west.

A Acceleration
N North
D Deceleration
S South

May be important if the heading indicator stops working.

Question 2

Heading Indicator