Southern Oregon, May 1949May 1949

On Friday, May 27, 1949, an experienced civilian pilot flying a private aircraft near Hart Mountain, Oregon made an unusual sighting. At 1425 hours (2:25 p.m. Pacific Standard Time), he observed what he first thought was a reflection of sunlight on a distant aircraft. As his plane drew closer, he realized he was seeing multiple objects flying in formation. The pilot counted between five and eight separate craft, each roughly twenty feet long or smaller, with an elongated oval or egg-shaped profile. They flew in a steady line formation, spaced about three to four object-lengths apart initially, then closer together, at approximately eight thousand feet above sea level.

The objects appeared to be made of unpainted metal and reflected sunlight conspicuously against the darker terrain. They traveled south-southwest at a speed the pilot estimated between 190 and 260 miles per hour, faster than conventional aircraft he knew and slower than jet planes. The objects remained at a steady altitude with no visible smoke or exhaust trails. Weather conditions that day were exceptionally clear, with visibility extending to distant landmarks. The formation flew parallel to the Hart Mountain bluffs and eventually passed out of sight on the horizon.

The Air Force investigated this report through interviews with the pilot, a highly credentialed former Navy lieutenant with over five thousand hours of flight experience. Investigators also checked weather records and attempted to verify whether conventional aircraft or military operations might explain the sighting. A weather official confirmed that the Burns, Oregon area was not a launch site for weather balloons or testing devices, and flight records from Seattle's air traffic control center could not be obtained because records were destroyed after ninety days unless unusual incidents were reported. The Air Force brought the case to the Air Materiel Command's research division, whose chief scientist stated that while the pilot appeared reliable and his observations seemed genuine, no conventional explanation could account for the phenomenon. The full case file, comprising 39 pages, is reproduced below as held by the National Archives.