Project 10073 Record Card — Colorado Springs, Colorado, 24 April 1952

This document consists of a series of military communications and a Project 10073 record card detailing an unidentified aerial phenomenon sighting in Colorado Springs, Colorado, on the night of April 24, 1952. A civilian witness, described as probably reliable but lacking technical experience, reported observing a single object at approximately 2215 hours. The witness, located in the backyard of 313 S Cascade, described the object as having a swept-wing configuration with no visible fuselage. The object exhibited a dark appearance with a luminous glow and maintained a straight and level flight path at an estimated altitude of 5,000 feet and a speed of 250 mph. The witness noted that the object was silent and appeared to be ten times larger than a standard jet aircraft. The sighting lasted between five and ten seconds before the object disappeared behind a roof line. The witness viewed the object through bare tree branches. Meteorological data for the time of the sighting indicated thin broken clouds at 6,500 feet and an overcast layer at 15,000 feet, with a temperature of 27 degrees Fahrenheit. The observer noted that stars were visible at the time. The report was processed by the 4602D Air Intelligence Squadron and forwarded to the Air Technical Intelligence Center (ATIC). Subsequent communications corrected the timing of the sighting to 2215 hours. The official conclusion recorded on the project card is that there was insufficient data for a definitive evaluation.