Stab trim settings
Dear atc4usaf,
The user experience for stab trim is very different on the two airplanes in Q. In my opinion this would make the comparison - 'not so useful'. The 737 stab trim wheels rotate 'violently' making quite a racket (helps identify runaway trim when using older technology trim systems). On the 744 there is no moving wheel in the cockpit and quiet operation with an electronic LCD type display of the trim scale (runaway, i.e. motion when not commanded and vice versa, is monitored via electronics, and identified by an EICAS message).
The 744, due to its vast range of possible CG figures has 3 different T/O green band ranges to help avoid a gross mistake in trim setting. Despite this, if memory serves right, the range of the trim indicator on the 744 is less than that on the 737.
It IS a reasonably common practice to memorise nominal rudder trim settings for engine out situations, however learning the nominal pitch trim settings for different conditions on the 744 is not a common practice, nor is it practical.
Conversion of trim units to degrees? It's a question of convention. The actual angular stab value is of no significant use to the pilot - just like the actual RPM has no advantage as compared to N1 measured in percent.
Correct technique for trim is to trim off the pressure on the column as has always been on conventional (non fly by wire) airplanes.
Hope that helped, though it was a bit of a ramble.
cps