Project Blue Book Case File
Davis-Monthan AFB, ArizonaMay 1952
Summary
On May 1, 1952, a crew flying a B-36 bomber (a long-range aircraft used during the Cold War) observed two unidentified objects near Davis-Monthan Air Force Base in Arizona. The objects were shiny and metallic in color, circular in shape, and appeared over the aircraft at an estimated altitude of more than 20,000 feet. According to the crew's account, the objects overtook the B-36 at roughly two to three times the speed of the bomber, which was traveling at approximately 300 miles per hour.
The two objects approached from the northeast and maneuvered near the aircraft. One of them came close enough that crew members could see it positioned between the fuselage and the starboard (right) wing. After several minutes of pacing the B-36, one object executed a sharp 70-to-30 degree turn and moved away toward the horizon. The other object then shrank in size, descended without forward motion, and disappeared. The crew reported no sound from either object, and no contrail or exhaust trail was visible. After the encounter ended, the B-36 radioed the base and requested immediate landing permission.
An Air Intelligence officer at Davis-Monthan who was on the ground during the incident also observed the objects, as did an airman standing nearby and several other base personnel at scattered locations. The officer's account, documented in official reports, provided additional detail about the objects' behavior and size relative to the aircraft. Weather conditions at the time were clear, with excellent visibility. The Air Force evaluated this case as unidentified.
The full case file, held by the National Archives as microfilm T1206, Roll 9, is reproduced below across 11 pages.
Reported location
Davis-Monthan AFB, Arizona
Date of incident
May 1952
State / country
AZ / US
Page count
11 scanned pages
USAF evaluation
unidentified
Microfilm
T1206, Roll 9