Bell, 206A, 206B, 206B-3,206L, 206L-1, 206L-3, 206LT

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Descent/Approach and Landing
The following approach procedures are aimed at avoiding a rate-of-descent/airspeed combination that leads to high Blade-Vortex Interaction (BVI) noise. The high noise region is illustrated in Figure below as a function of airspeed and rate-of-descent. The noise abatement approach procedures are also shown on the figure.

Figure. High noise region and noise abatement procedures for Bell 206-series helicopters

1. Commence the approach by following one of the two procedures:

a. First establish a rate-of-descent of at least 500 fpm.
b. Then reduce airspeed while increasing the rate of descent to at least 800 fpm.

a. First establish a rate-of-descent of no more than 200 fpm while reducing the airspeed to approximately 55 knots.
b. Then increase the rate-of-descent to at least 800 fpm.

2. At a convenient airspeed between 50 and 80 knots, setup an approach glideslope while maintaining the 800 fpm or greater rate-of-descent.

3. Increase the rate-of-descent if the main rotor tends to slap, or if a steeper glideslope is desired.

4. Reduce the airspeed to below 60 knots before decreasing the rate-of-descent and commencing the flare.

5. Execute a normal flare and landing.

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