Part 41 of a series reassessing the documentary record behind the 1933 Magenta narrative. TL;DR On 3 March 1953, Captain Roderick D. Thompson pursued and filmed an unfamiliar condensation pattern from an F-84. Three pilots saw the initial phenomenon; none resolved the object producing it. Ruppelt’s later endorsement was conditional on an approximately 80-mile chase. Thompson’s signed statement gives 50–60 miles and differs on several other flight details. Neither distance independently measur...