That F106 was on display at the USAFA - the heat exposure am=nnealed
the aluminum structure so it no longer possessed design strength and
had to be grounded. I also heard the engine's RPM was cranked up way
over tech order limits - interesting because a 1% increase on a dual
spool engine can be a 5% increase in thrust. Supposedly went from 93%
up to 97%.
I also had a long phone conversation with an old squadron mate. He
mentioned he used to FCF F111s - and had one out to 2.7 in a shallow
dive from 50 grand. And I believe him - know him well. Don't bother
telling me it's past the red line; that's just a mark on a gauge.
Walt BJ