American aviator, businessman, and politician. Kenneth Arnold saw "nine saucer-like aircraft flying in formation" at an altitude between 9,500 and 10,000 feet between Mount Rainer and Mount Adams in Washington moving at "the amazing speed of about 1,200 miles an hour." it was considered the first modern sighting of UFOs and gave rise to the term flying saucer. The report captured the attention of the nation. More
Letter: with parts typed, handwritten and illustrational, submitted to Commanding General, Army Air Forces, Wright Field; communication of flying saucers or flying disks. This letter was subsequently UNCLASSIFIED.