U.S. Air Force (Gov Program) (1949) — CTD-0053

DATE11 Feb 1949

LOCAL TIME—

LOCATIONUnited States

COORDINATES39.85°N, 84.08°W

Project Grudge replaced Project Sign, marking a shift from open investigation to debunking. Oriented toward concluding UFO sightings were conventional phenomena.

[ PRIMARY CITATION // WIKIPEDIA · CTD-0053 ]

WITNESSES & UNITS

U.S. Air Force

SENSORS & EVIDENCE

Institutional program record

Air Technical Intelligence Center, Wright-Patterson AFB

## RELATED FILES

ls /index?cat=gov →

1949-08-01U.S. Air Force (Investigation)United StatesCTD-0054 →1948-10-01Gen. Hoyt S. Vandenberg (Official Statement)United StatesCTD-0049 →1948-09-01Capt. Robert R. Sneider (Investigation)United StatesCTD-0047 →