Dolan recounts 1964 Navy report of object tracked at 3,800 knots

What was said

"it detected a high alitude object moving at more than 3,800 knots. That's more than 4,000 miles per hour. Um, so, uh, the the radar track lasted for 21 minutes according to this report."

Dolan highlights a Tranche 5 document dated 19 November 1964 that he says describes a USS destroyer tracking a high-altitude object near Puerto Rico at speeds reported above 3,800 knots for 21 minutes. He says the report includes an F-8 Crusader pilot attempting an intercept before the object accelerated away, then later approaching again from behind, and that CIA analysis in the document weighed and rejected explanations involving US classified aircraft and Soviet capability at the time.