(Project Blue Book, U.S. Air Force, Washington, D.C.)
Source: Fold3.com, Lindon, Utah.
Quote from the document:
“BRIEF SUMMARY OF SIGHTING:
Shiny-metal color. Circular shaped. Seemed to close on B-36 then made sharp turns. Might have been fighters however description precludes this. Too bad altitude of B-36 is unknown.
Overtook B-36 at 3x B-36 speed. Hovered near B-36 then disappeared by getting smaller.”
Davis-Monthan Air Force Base, Tucson, Arizona (moaablogs.org)
Satellite photo of Tucson, Arizona (tageo.com)