Originally Posted by
silverstrata
That is a 737 colloquialism, using ’degrees’ in the generic sense - eveyone says ‘degrees’ but we mean ‘units’. As you say, they are not real degrees - you would have to look on the trim-sheet to see the conversion between MAC and trim, as it is not linear.
I would have to assume that when Boeing publishes a technical description of a control system in a bulletin to one of their manuals whcih says "...2.5 degrees ..... 0.27 degrees per second ...." That the word "degrees" means precisely that: Degrees. And that if they had really meant "Units of Aircraft Nose Up" (or whatever the term is in the FCOM) they would have said exactly that.