Incidentally, the base had also headquartered two formal unidentified flying object investigations: Project Sign (1947–1948), which had come to favor the extraterrestrial hypothesis before being replaced with Project Grudge (1949–1951), which had a debunking mandate.
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Knowing that factionalism had harmed the progress of Project Sign, Ruppelt did his best to recruit open-minded, but objective and neutral personnel to staff Blue Book.
Manhattan Project | Project Runway | Project Mercury | Human Genome Project | The Blair Witch Project | Project Gemini | Project Greenlight | Project Nike | Medical sign | Project Blue Book | Federal Art Project | The Sign of the Four | sign | Project Orion | Men's Recovery Project | Eden Project | British Sign Language | World Justice Project | Wounded Warrior Project | The Octopus Project | The Alan Parsons Project | Project Xanadu | Gotan Project | German nuclear energy project | American Sign Language | Tony Hawk's Project 8 | The Spamhaus Project | The Sign of Four | The Mindy Project | sign language |