something to chew on--
1- props don't create torque - the motor (or engine) shaft torque ,can be measured )
2-watts simply are measurement the amount of power applied to the shaft
3- the torque roll is a reaction to applied force (from prop shaft)in opposite direction- on the prop
4 being an airscrew - the prop applies force (moves air) from front to rear and at an angle
When you add it all up - to hover 15 lbs takes 15 lbs of thrust --the prop had to slice the air is some manner to create a NET difference from above the blade to beneath them.
Short of using contrarotating props - that nasty old reactive force will still exist.
How efficiently you do this is up to your selection of prop and powerplant.
But make no mistake - the airscrew will always react (opposite force ) as hard as it acts. You can call that torque if you like but really -it is just reactive force.
Brer Newton had that one down cold


an electric motor driving a prop and a thrust stand (plus if you want it ,a reaction load meter) - will show you the relationships of
applied power measured in watts.
thrust -relative to power input
and reaction to thrust with various props -if you setup stand for measuring reaction .
but what the heck try different props-- that's the fun in flying models. I have a pot full of props from 32" long for 160cc down to 3" for tiny under one ounce electric models- I also swap props to find what I like best -