Originally Posted by
albatross
Good question. Why indeed?
Not a joke but feel free to laugh at me.
Now if and that’s a big IF what is being referred to is that 100% of Pitch up or down is 90 degrees then what % of 100 is 6.3 degrees?
So IF 90 degrees = 100% 1 degree is 100/90 or 1.111% so 6.3 degrees is 6.3 x1.111 should equal 6.999 % .( pretty darn close to 7 degrees of pitch)
That works for small angles. Percent slope as a fixed multiplier of angle (rule of thumb stuff). But it starts to break down above 5 or 10 degrees. The trig functions are not linear.
Percent slope may be useful for rate of climb. But even if someone's instruments are all marked in percent slope (doubtful), you can't add percent slopes (Flight path angle + AoA to get Pitch Attitude). You can add angles in degrees precisely.
Please, no. That table is just confusing.