Quote Originally Posted by mklotz View Post

Like most compromise solutions, trying to ease into metric by using the two systems side-by-side simply won't work. In fact, it can be downright life-threatening as Canada's Gimli glider incident proves...

https://en.wikipedia.org/wiki/Gimli_Glider
That was a very interesting read. And one I've never heard of before. During my mentoring, and passing this on to the next generation, this incident never was brought up. Probably because there were no Collins Radio component/systems failures. Interesting that they had multiple failures, and clearly a MEL (minimum equipment list) that did not include the fuel quantity indicators. And then much statistical "luck" occurred.

Marv, did you work for Rocketdyne? Probably lots of other aerospace in the LA area, but they were attached to Rockwell International, as well Collins Radio.