From the equation given above, an example:
ILS GS=3 deg, TAS=140 and HW= 30K,
Then Air GS =2.35 deg,
Any idea about the required pitch change to reduce Air GS from 3 deg to 2.35 deg (equal to change of the flight path 0.65 deg)?
It may not be necessarily equal to 0.65 deg pitch change, could be greater...