Before revision: They were used for course setting and reading, and as a check compass on aircraft fitted with a remote indicating compass.Grid compass description See also Astrocompass Compass Silva Compass Solar compass Marine sandglass References Bibliography Aircraft Instruments External links A Compass for ‘Sandpiper’ "A Job Thought Impossible" , the story of Chrysler Corporation's mass-production of previously hand-made compasses for World War II naval requirements.
After revision: Bearing compassThey were used for course setting and reading, and as a check compass on aircraft fitted with a remote indicating compass.Grid compass description See also Astrocompass Compass Silva Compass Solar compass Marine sandglass References Bibliography Aircraft Instruments External links A Compass for ‘Sandpiper’ "A Job Thought Impossible" , the story of Chrysler Corporation's mass-production of previously hand-made compasses for World War II naval requirements.