A "perfectly round disc" hovering above the Hanford atomic plant, Richland, Washington, was observed by four veteran pilots July 5, 1952. The four Conner Airlines pilots were interviewed by United Press when they landed in Denver, Colorado, and their story was put on the newswires that day.
Capt. John Baldwin (former Air Force pilot, with 7000 hours airline pilot experience at the time) said he was flying near the Hanford atomic plant at about 9000 feet. The UFO was noticed above the plane about 6:00 a.m. It was "just below a deck of wispy clouds about 10,000 to 15,000 feet directly above us," Baldwin said. He described it as "a perfectly round disc, white in color and almost transparent with small vapor trails off it like the tentacles of an octopus." fcf., September 24, .1959 FAA case below]
Capt. George Robertson, D. Shenkel (both former Air Force pilots) and Steven Summers confirmed Baldwin's report. "All of us have been flying a number of years," Baldwin said, "and we've seen all kinds of clouds and formations, but none of us had ever seen anything like this before."
At first, the UFO was hovering. Then it "seemed to back away" and tilt edge-on. "It became flat, gained speed and then disappeared quickly," Baldwin reported.