What is aircraft magnetism?

Answer 1

AIRCRAFT MAGNETISM

Magnetism is unavoidable present in aircraft in varying amounts, and can therefore also produce errors in the indications of compass (deviations). However, by analysis it is divided into two main types and also resolved into components acting in definite directions, so that steps can be taken to minimize the errors, or deviations as they are called, resulting from such components. The two types of magnetism can be further divided in the same way that magnetic materials are classified according to their ability to be magnetized, namely hard0iron and soft-iron.

Answer 2

Aircraft magnetism is the tendency of aircraft to become magnetized due to the influence of the Earth's magnetic field and electrical currents flowing through the aircraft. This can affect the accuracy of compasses and navigational equipment onboard the aircraft. Measures such as periodic degaussing are taken to correct any magnetization effects.