See and Avoid
30 June 1956. Two airliners, a TWA Lockheed Constellation and a United Airlines DC-7 are eastbound, in uncontrolled airspace in the vicinity of the Grand Canyon. Both were flying under visual flight rules ostensibly to avoid the thunderstorms building in the area. At 1056 local, the DC-7 struck the Connie from above and behind, severing…