Edward Ruppelt

Edward J. Ruppelt (1923-1960) was the U.S. Air Force officer who directed Project Blue Book from 1951 to 1953 and coined the term "unidentified flying object." His 1956 memoir is widely considered the most important insider account of official UFO investigation.

A decorated B-29 bombardier in World War II, Ruppelt studied aeronautical engineering, was recalled for Korea, and was assigned to the Aerial Phenomena Group at Wright-Patterson, where he reorganized the moribund Project Grudge into Blue Book.

Ruppelt professionalized the work: standardized reporting forms, statistical analysis through Battelle, and investigations run without a predetermined verdict. He managed the great 1952 wave, including the Washington, D.C. radar events, and briefed the press through it. After leaving the service he wrote The Report on Unidentified Flying Objects (1956), which disclosed the destroyed "Estimate of the Situation," the Robertson Panel's existence, and the internal politics of belief and debunking. The book named and framed most of what the field knows about the era.

Ruppelt's stance was studiedly open: some cases were genuine unknowns worth science, most were not, and honesty mattered more than conclusions. His documented contributions are the term UFO, the era's best case files, and the book.

The 1960 revised edition of his book added chapters dismissing the subject, and he died of a heart attack months later at 37. Believers have long debated whether the reversal reflected pressure, illness, or sincere reassessment; skeptics read it as a fair mind finishing its journey. Both camps cite him constantly, which is its own tribute.

Ruppelt died in 1960. His book has never left print in the field's canon, and his files anchor the National Archives record.