Designed to compensate for the weaknesses of the magnetic compass, the Earth inductor compass provided pilots with a more stable and reliable reference instrument. They were used in the Douglas World Cruisers in 1924 during the Around-the-World flight by the U.S. Army Air Corps.
The Earth inductor compass was designed to compensate for the magnetic compass's weaknesses, offering a more stable and reliable navigational aid. These instruments were utilized in the Douglas World Cruisers of 1924 during the U.S. Army Air Corps' around-the-world flight.