If an instrument departure procedure requires a climb rate of 210 feet per NM, what is the required rate of climb in feet per minute at a ground speed of 140 knots?

To determine the required rate of climb in feet per minute when the instrument departure procedure specifies a climb rate of 210 feet per nautical mile and the aircraft is traveling at a ground speed of 140 knots, you can follow these steps:

1. Convert Ground Speed to Feet Per Minute: First, convert the ground speed from knots to feet per minute. One knot equals approximately 101.3 feet per minute. Therefore, multiply the ground speed in knots by 101.3 to get feet per minute:

[

140 \text{ knots} \times 101.3 \text{ feet/minute per knot} \approx 14,182 \text{ feet per minute}

]

2. Calculate Climb Requirement: Next, consider the climb requirement of 210 feet per nautical mile. Since 1 nautical mile is equal to 6,076 feet, the climb rate in feet per minute can be calculated by determining how many nautical miles the aircraft covers in one minute.

To find out how many nautical miles are flown in one minute at 140 knots:

[

\text{Distance covered in 1 minute} = \text{ground speed in knots} =