Originally Posted by
Flubber
Math is close
... 5 * 250 = 1250. It also assumes no wind; using ground speed accounts for wind.
I think you are confusing degrees with percentages, the latter being what the OP asked for.
What if the desired percentage was 8.7%? What would be your FPM then?
BTW, your example is correct, when the goal is a three degree or 5.24% slope, which is most common for aviation.