# Helicopter Coordinated Turn Calculator

 Speed $$kts$$ Bank Angle / Roll $$deg$$ Vertical Acceleration 1.15 $$G$$ Turn Radius 1242 $$ft$$ Turn Radius 0.24 $$mile$$ Rate of heading change 7.01 $$deg/s$$

## Description

This calculator estimates the G-level $$N_z$$, turn radius $$R$$, and yaw rate $$r$$ from a helicopter's speed $$v$$ and bank angle $$\phi$$ in a coordinated turn.

## Equations

The following equations are used to estimate the values.

$N_z = 1/\cos\phi$ $R = \frac{v^2}{G\tan\phi}$ $r = \frac{v}{R}$

For more details including the derivation of these equations see our article on coordinated turns.

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