Lockheed Constellation
Aircraft / Project / Craft· 2 declassified document(s)
Also: Constellation
The Lockheed Constellation was a prominent propeller-driven airliner and military transport aircraft built between 1943 and 1958. Known for its distinctive triple-tail design and dolphin-shaped fuselage, it was widely used by both commercial airlines and the US military (as the C-69 and C-121). Crews aboard Constellations reported numerous UAP sightings during the mid-20th century, contributing significantly to the Project Blue Book files.
Commercial and military crews flying the Constellation reported numerous high-altitude UAP sightings during the 1950s and 1960s.