I have been trying to work out how to calculate the following question.
You calculate that you need to achieve a climb gradient of 440 ft/ nm in order to clear a small hill. What is this expressed as a 'rate of climb' if your groundspeed is 90 knots?
The answer is 660ft/min.
The previous question that I worked out by doing height = distance x angle / 60.
Which asked approximately what height would you be on a three degree glideslope 3nm from the aerodrome. I converted 3nm to 18228 feet x 3 / 60 to give 911 feet. Which was ok.
I am not sure if this is using the 1 in 60 logic?
I am trying to work out how to get to the 660ft/min.
Thanks for the help.