When departing from RWY 03, using an average groundspeed of 140 knots, what minimum indicated rate of climb must be maintained to meet the required climb rate to 9,900?

To determine the minimum indicated rate of climb required when departing from RWY 03 with an average groundspeed of 140 knots, it's essential to apply the necessary formulas to assess the climb performance.

The required climb rate is derived from the formula that correlates the altitude gain with the groundspeed during departure. Generally, for aircraft departing under typical conditions, regulations often state a required climb gradient. This is commonly around 100 feet of altitude gain per nautical mile traveled horizontally.

Given that there are 1.15 nautical miles in 1 statute mile, if the altitude to reach is 9,900 feet, we need to establish how quickly the aircraft must climb during the cruise phase. Using the average groundspeed of 140 knots, we can convert the groundspeed into feet per minute to find out how fast we need to climb to hit the required altitude.

Start by determining how long it takes to cover the distance needed for the climb. At a groundspeed of 140 knots (where one knot equals 1.688 feet per minute), the aircraft will travel approximately 140 nautical miles per hour or roughly 2.33 nautical miles per minute.

If the climb must reach 9,900 feet, calculating the necessary rate of climb