W-R-O-N-G! To say that we transition to mach at FL280 is a wrong simisism!

There's a reason FL280 is such a known number and that is because 290KIAS at temperatures close to ISA equals to .74M !

It's not a company standard or anything like that , that we "transition to mach" at FL280.... that's training department bs.

Therefore my friend, the word married is not misplaced at all. And therefore, it is my personal (you can interpret that as technique if you so will) belief that while using a 250/.70 profile, we only "transition to mach" at FL320 on days where temperatures are close to ISA.

I hope this helps clarifying things. I have no problem if numero uno wants something different, but don't quote me some bs statements that have nothing to do with reality. If you feel more comfortable with an extra 5 knots then say so, it's that simple.