Paul Crickmore recounts on Pg 128 of
Lockheed SR-71 - The Secret Missions Exposed a story of a SR-71 crew flying 974 in July '68 where they ran into storms in the Gulf of Tonkin with the tops of the clouds at
79,000ft! They overshot them at M=3.2 @ 80,000.
Now thats a Cb!
