Multimedia Gallery
- Navigation Methods: Radio Navigation
This is a typical radio range receiver used in the late 1930s on private airplanes.
Elder's note to "Mother" Tusch echoes the appeal of female aviators from the era to be treated just as the "boys."
Sidereal time, or “star time,” is based on Earth’s rotation relative to the stars, rather than to the Sun.
The certification set for the first-general aviation LORAN-C receiver.
The first picture of the Moon by a U.S. spacecraft, Ranger 7, in 1964.
First Ranger 9 photograph of the Moon.
Navigation cadets of the 477th Bombardment Group.
Gee receivers like this one were used extensively in the Allied bombing campaigns over Europe during World War II.
Used to provide radio time signals to ships and aircraft.
Aviator Ruth Elder and her co-pilot/instructor George Haldeman disappeared over the Atlantic creating a desperate scramble to determine their whereabouts.