Article Title: SR-71 RSO recalls when an F-101 tried to race against his Blackbird. The Voodoo pilot gave up when he asked him how fast his F-101 could climb above 80,000 feet.
Article Excerpt: "...The following story comes from my Dad’s unpublished book, “The Very First” by Colonel Richard “Butch” Sheffield, SR-71 Blackbird Reconnaissance Systems Officer (RSO).
‘Sometime, early in the program, in January 1967, I believe, we aborted and landed at Buckley Air National Guard (ANG) Base near Denver. The base was home to an F-101 squadron. The F-101 was an interceptor assigned to defend the US in case of war. The fighter community considered it a “hot” aircraft. ..."
Reference Source: The Aviation Geek Club