I hope this is the right place to post this, since I don't see many threads on private-pilot type questions, but I did a good search through the archive for an answer...
I am trying to fathom out the practical difference between this text book's explanation of rate of climb versus angle of climb. I have no problem with understanding the practical difference, i.e. one you gain more height in a given time,t, and the other you trade that off for more horizontal distance, i.e. a greater TAS.
What I don't understand is why rate of climb is defined has having the greatest excess power over the power required and maximum angle of climb is defined as having the greatest excess of thrust over the drag. Aren't they both pragmatically speaking a matter of excess thrust over the minimum required to counteract drag? Power would only come if to it when you're talking about climb performance in general, not highlighting the difference between angle and rate.