On Mar 17, 10:05*am, "bumper" wrote:


Finally an answer that makes sense! Thank you, thank you, thank
you!


This is also the reason captive nuts are common in instruments.
Without them the nuts would loosen for thermal entries one way, and
the screws would loosen if you turned the other way. Good pilots
just adapt and fly fast without turning. Less adept pilots resort to
loctite, stiffnuts, or periodic security checks.

Andy