How Do Airplane Compasses React When Turning?

Do airplane compasses initially indicate a turn in the opposite direction of the actual heading? True or False?

a. true
b. false

Answer:

The statement is true. Compasses onboard airplanes will initially indicate a turn opposite to the correct direction because of the magnetic dip and declination.

When airplanes turn, the compass needle may initially point in the opposite direction of the actual heading due to the influence of magnetic dip and declination. This temporary error in indication is a common phenomenon in aviation navigation that pilots are aware of and account for in their flight planning and operations.

Magnetic dip refers to the deviation of the compass needle from the horizontal plane caused by the Earth's magnetic field. Declination, on the other hand, is the angle between magnetic north and true north. These factors affect how the compass needle aligns with the aircraft's heading during turns.

As the airplane continues its turn and aligns with the desired heading, the compass needle gradually corrects itself and shows the accurate direction of travel. This self-correcting process ensures that the compass provides reliable guidance to the pilot throughout the flight.

It is important for pilots to understand the nuances of compass navigation and be able to interpret the indications provided by the compass in different flight scenarios. By being aware of how compasses react during turns and maneuvers, pilots can maintain safe and efficient navigation during their flights.