Enter the change in altitude (ft) and the change in horizontal distance (ft) into the Calculator. The calculator will evaluate the Average Rate Of Descent. 

Average Rate Of Descent Formula

ROD = CA / CD

Variables:

  • ROD is the Average Rate Of Descent (ft/ft)
  • CA is the change in altitude (ft)
  • CD is the change in horizontal distance (ft)

To calculate the Average Rate Of Descent, divide the change in altitude by the change in distance.

How to Calculate the Average Rate Of Descent?

The following steps outline how to calculate the Average Rate Of Descent.


  1. First, determine the change in altitude (ft). 
  2. Next, determine the change in horizontal distance (ft). 
  3. Next, gather the formula from above = ROD = CA / CD.
  4. Finally, calculate the Average Rate Of Descent.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

change in altitude (ft) = 3000

change in horizontal distance (ft) = 2000

Frequently Asked Questions

What is the significance of calculating the Average Rate Of Descent?

Calculating the Average Rate Of Descent is crucial in aviation and aeronautical engineering to ensure safe landing approaches and to design flight paths that minimize fuel consumption and maximize safety.

Can the Average Rate Of Descent formula be used for any type of descent?

Yes, the Average Rate Of Descent formula can be applied to any descent scenario where there is a measurable change in altitude over a horizontal distance, including aircraft, drones, and even theoretical calculations in physics and engineering projects.

How can errors in calculating the Average Rate Of Descent impact real-world scenarios?

Errors in calculating the Average Rate Of Descent can lead to unsafe landing approaches, increased fuel consumption, and in severe cases, accidents. Accurate calculations are essential for flight planning and safety.