Project Blue Book Case File
Riverside, CaliforniaFebruary 1956
Summary
On February 15, 1956, a US Navy pilot near Riverside, California reported seeing a cigar-shaped brown object with no apparent details. The object followed a straight and level course at about 30 degrees per second, then disappeared abruptly. The pilot was the only witness. The Air Force concluded the sighting was an optical illusion caused by oddly-shaped contrails from five known aircraft in the area. The observation lasted eight minutes.
Reported location
Riverside, California
Date of incident
February 1956
State / country
CA / US
Page count
3 scanned pages
USAF evaluation
unidentified
Microfilm
T1206, Roll 24