What is the mnemonic used to remember compass errors related to acceleration and deceleration?

The mnemonic used to remember compass errors related to acceleration and deceleration is "ANDS." This helps pilots easily recall that during acceleration, a compass will indicate a turn toward the north (which can lead to a false reading), and during deceleration, it will indicate a turn toward the south. This is a critical concept for navigation, as it emphasizes the importance of understanding how speed changes can affect compass readings.

The use of this mnemonic simplifies the learning process for pilots by providing a straightforward way to remember the specific compass errors related to changes in speed. In contrast, other mnemonics, like "UNOS," are more focused on magnetic deviation and variation, while "HEAT" relates to different aviation scenarios, and "VFR" is about flight rules, none of which directly address the effects of acceleration and deceleration on the compass. In this way, "ANDS" is specifically tailored to assist with the nuances of compass behavior in relation to the forces acting on the aircraft, making it a vital tool for pilots during flight operations.