Multimedia Gallery
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Aviation in the interwar years tested the limits of human endurance, making complex tasks like navigation highly problematic.
Pilot John W. "Jack" Frost waving from the cockpit.
John A. Pedlar and Mildred Doran posing with M. R. Lawing.
GPS-guided precision delivery system.
Seen in regular service before the September 1, 1983, shoot down of Flight 007.
A navigator of Squadron VP-7 demonstrates a Kaster Spherant in the nose of a Douglas PD-1, December 1929.
The periscopic sextant eliminated the need for astrodomes.
Lt. Lester Maitland and Lt. Hegenberger with the Fokker C-2 Bird of Paradise.
Philip Payne, James DeWitt Hill, and Lloyd Bertaud with their plane Old Glory.
This Lockheed RC-121D featured periscopic sextant ports for celestial sightings, eliminating the need for astrodomes.
