AIRCRAFT MAGNETISM

Question 1

Compass swings should be carried out:

Answer 1

b. only on the compass swinging base or site.

Question 2

Aircraft magnetism caused by Vertical Soft Iron:

Answer 2

varies with magnetic latitude but not with heading.

Question 3

Aircraft magnetism caused by Hard Iron:

Answer 3

is not usually influenced by the earth’s magnetic field.

Question 4

The aim of a compass swing is:

1. to find deviation on the cardinal headings and to calculate coefficients A, B and C.
2. to eliminate or reduce the coefficients found.
3. to record any residual deviation and to prepare a compass correction card.

Answer 4

c. answers 1, 2 and 3 are all correct.

Question 5

6. Deviation due to coefficient A is mainly caused by:

Answer 5

d. a misaligned lubber line.