Can anyone tell me how to use the vnav in the bell 407 using rxp gtn750. I am trying to get the autopilot (sas) to automatically step down the aititudes in the flight plan without having to do it manually, is this possible ?.

Not possible.  What is possible is to couple the 407's autopilot to vertical glide path during an RNAV (GPS) approach with LPV minimums.
 

Thanks for that Ryan.

I have been able to use vnav on the g1000 to do the fore mentioned, seems strange how its not possible with the rxp gtn750.  any reasons why its not possible ?.

could there be an addon or script to achieve this.

 

Would a real helicopter pilot in a Bell407 have to follow the altitude step downs on the flightplan  on a manual basis ?.

John.

Edited June 13, 20196 yr by Johnboy991

I'd go to the RXP subforum and ask...I'm not sure why it's not possible.  In real world it would be rare to have an ifr helo doing Sid/stars with vnav.

56 minutes ago, ryanbatcund said:

I'd go to the RXP subforum and ask...I'm not sure why it's not possible.  In real world it would be rare to have an ifr helo doing Sid/stars with vnav.

Agreed, but in the real world I'm not sure this would be something you'd expect in a single-engine helicopter like the 407.

Isn't IFR and full Sid/Star use more for the larger twin engine helicopters? Is the 407 ever used that way? Maybe it is for HEMS, I'm no expert in that area. I just think of advanced IFR being more for the the medium and heavy helos.

thanks for replies guys.

much appreciated.

John