Enter the velocity of the aircraft and the bank angle into the calculator to determine the aircraft turn radius.

## Aircraft Turn Radius Formula

The following equation is used to calculate the Aircraft Turn Radius.

ATr = V^2/ 11.26*tan(b)

- Where ATr is the aircraft turn radius (ft)
- V is the velocity of the aircraft (knots)
- b is the bank angle (degrees)

To calculate an aircraft turn radius, square the velocity, divide by 11.25, then finally multiply by the tangent of the bank angle.

## What is an Aircraft Turn Radius?

Definition:

An aircraft turn radius is the approximate radius that an aircraft would turn at given a velocity and bank angle.

## How to Calculate Aircraft Turn Radius?

Example Problem:

The following example outlines the steps and information needed to calculate Aircraft Turn Radius.

First, determine the aircraft velocity. For this example, the aircraft is moving at a speed of 150 knots.

Next, determine the bank angle. This aircraft is turning at a standard bank of 25 degrees.

Finally, calculate the aircraft turn radius using the formula above:

ATr = V^2/ 11.26*tan(b)

ATr = 150^2/ (11.26*tan(25deg))

ATr = 4285.20 ft