UFO Sighting Report — Nondalton/Iliamna, Alaska, 20 July 1966

This document details a UFO sighting that occurred on 20 July 1966 in the vicinity of Nondalton and Iliamna, Alaska. The report, compiled by the Alaskan Air Command and forwarded to the Foreign Technology Division (FTD) at Wright-Patterson AFB, describes a round, transparent, silvery object approximately 8 feet in diameter. The object was observed by multiple witnesses, including a professional pilot with 12 years of experience and the Chief of the Iliamna Flight Service Station. The object was reported to have the capability to hover, move against the wind, and climb or descend at rates comparable to a Cessna 180 aircraft. The sighting lasted for 10 minutes at Nondalton and 30 minutes at Iliamna. The witness in the aircraft attempted to intercept the object, but it moved away and was not seen to disappear before visual contact was lost. The Air Force investigation concluded that the description was consistent with a balloon, possibly a weather balloon, although no agency in the region claimed ownership of such a device. Photographic evidence in the form of 35mm slides was submitted, but the FTD analysis determined the value of the film to be negligible due to the lack of a discernible object on the slides. The document includes correspondence between the Alaskan Air Command and FTD regarding the request for technical details of the photography, as well as a separate, unrelated report from a civilian in North Carolina regarding a different sighting.