Therefore what we mean is your best ANGLE of climb. What it often gets confused with (and specified as) is best RATE of climb as that is the only thing we have to measure
No...
Dictionary meaning of 'expedite'
verb 1. Process fast and efficiently.
2. Speed up the progress of
Synonym: hasten.
In a radar environment, 'expedite climb/descent' means we want
fastest rate.
I might be wrong here, but I don't think that
greatest climb angle necessarily gives the fastest rate of climb.
As for using the phrase
best rate of climb - - hmm best? is that best for efficiency, comfort, speed, preference? best is not clear.
In short, expedite = hurry/get a move on/shift yer ass/climb like a homesick angel/descend like brick
just my tuppence worth
VL