Fly-over waypoints

[jixeg737]

Hello together,

I have noticed that waypoints (indicated as fly-by waypoints in the ND) are actually treated as fly-over waypoints in the LNAV mode. See the snap in the attachment.

Is this behaviour correct?

Thanks for your information.

Kind regards

Jens

[Litjan]

No, usually the fly-by code works correctly, the plane will start the turn timely to smoothly intercept the new bearing. The plane will only revert to fly-over reintercept if the bearing change is too large (and the turn would need to start way too far ahead of the intercept point).

I could imagine that above behaviour is due to the FMS calculating with a very low speed (and calculating tight turns) and then the plane flies the routing with a much higher speed (causing it to overshoot the precalculated turns)?

 

Cheers, Jan

 

[jixeg737]

Hi Jan,

thanks for helping me.

Ok, for what should I look out in my next flight?

The planned speed the CDU displays and the actual speed?

Regards

Jens