Is there any method to change the default VNAV descent profile in the NXi from the default 3° to perhaps 2° or 1.7° ?   The default  3.0° produces too rapid of a FPM descent from cruise for non-pressurized aircraft like the Baron or Bonanza.  Please note that I asked about changing the default.  I am clearly aware of how to change the setting during a flight.

Edited December 20, 20214 yr by fppilot

2 hours ago, fppilot said:

Is there any method to change the default VNAV descent profile in the NXi from the default 3° to perhaps 2° or 1.7° ?   The default  3.0° produces too rapid of a FPM descent from cruise for non-pressurized aircraft like the Baron or Bonanza.  Please note that I asked about changing the default.  I am clearly aware of how to change the setting during a flight.

Apparently not.  I asked on the WT Discord site and the answer by Matt (WT programmer) was: "Not a user facing way that I'm aware of. Maybe in the maintenance menu in the real thing, but I believe it's set by the installer."

Given this, since the descent rate is a function of your ground speed (5 x GS for a 3 deg descent angle), slowing down is the only option I can think of for reducing the descent vertical speed if you don't want to actually change the angle during a flight.

Al

Edited December 20, 20214 yr by ark

Not sure if it actually works, but on the FPL page VNAV Profile makes You able to select the descend angle and change it..

3 degree glide path is standard though.  Why is it too steep?  If you're doing 100 knots it's roughly 500fpm.  200 knots 1000 fpm.  

When I'm flying irl we're doing anywhere from 500-1000 descent.  And we're definitely not doing 200 knots hehe.

3 hours ago, Wothan said:

Not sure if it actually works, but on the FPL page VNAV Profile makes You able to select the descend angle and change it..

 

6 hours ago, fppilot said:

Please note that I asked about changing the default.  I am clearly aware of how to change the setting during a flight.

Thanks anyway Wothan.....

3 hours ago, ryanbatcund said:

3 degree glide path is standard though.  Why is it too steep?  If you're doing 100 knots it's roughly 500fpm.  200 knots 1000 fpm.  

When I'm flying irl we're doing anywhere from 500-1000 descent.  And we're definitely not doing 200 knots hehe.

Well over the past 21 days I completed a consecutive series of flights from the west coast to the east coast in the RYTB (Robert Young Turbo Bonanza) and experienced more than significant tail winds on nearly each flight.  So the issue I faced was that at a 3° rate from cruise altitudes ranging from 10,000 to 13,000 ft I literally could not slow down enough with realistic engine management. Again at 3°.   So I was manually dialing back the VNAV angle on each flight to from between 1.7 and 2.0° . My advance flight planning showed me I would be dealing with the tailwinds during each descent.  So it would have been nice to dial back the default angle.

Today flying westbound for a change with a nominal headwind (18 ~ 25 knots) it was not much of an issue, but I still dialed the angle back to 2.0° in the Bonanza to attain a normal 500 to 600 fpm ROD.at around 160 to 170 knots ground speed.

I have gone through the two significant NXi publications and found no reference to changing the default.  Again everyone, default!  I clearly know how to situationally change the angle, but that is not retained after the NXi is powered off.

Edited December 21, 20214 yr by fppilot

26 minutes ago, fppilot said:

I have gone through the two significant NXi publications and found no reference to changing the default.  Again everyone, default!  I clearly know how to situationally change the angle, but that is not retained after the NXi is powered off.

I assume you saw my quote above from the WT programmer regarding the default VNAV angle.  So regardless of what is possible in the real world G1000NXi, it apparently is not currently possible in the sim version.

Al

Edited December 21, 20214 yr by ark

1 minute ago, ark said:

I assume you saw my quote above from the WT programmer regarding the default VNAV angle.

Al

I did, and thank you very much!

On 12/20/2021 at 7:57 PM, ark said:

So regardless of what is possible in the real world G1000NXi, it apparently is not currently possible in the sim version.

I understand.  And my blindness has woken up to the fact that when the flight plan page is brought up on the NXi MFD there is then a key on the bottom row that takes you directly to that VNAV Descent Profile setting, eliminating the need to progress through the entire flight plan from top to bottom to get there.  Much more convenient now that I have found that.