Anyone know if this can be done with FBW and simbrief plan installed?

I tried and I could not since no flight plan is loaded from the world map.

Yepp, if the sim doesn't know where you're going (where your TOD is), you can't fast travel.

On 2/2/2022 at 1:45 AM, Watsi said:

Yepp, if the sim doesn't know where you're going (where your TOD is), you can't fast travel.

Darn..thanks...those cross the pond flights are painful to do.

Yeah, the VNAV function is not implemented.  I kind of find this odd because as I understand it, they cant implement fully correctly without Asobo's improvements.  They also said if they cant do it to match the real function they will not do it (true with the ground and wx radar).  However, they have produced LNAV that does not fully function like the real aircraft.  Yes they are working on that but I have incrementally improved over the months.  I guess what I am saying is why not incrementally improve both LNAV and VNAV together, yes you may not have all the vars you need (yet) but you would have something.  And for what it's worth, throw in the default wx and ground mapping because one will never have a real life correctly implemented sim wx radar (that data will never be available). 

I am just a bit bummed when I see the advancements made in LNAV yet a geometric path in VNAV (with associated PFD displays) essentially untouched as both of these systems work hand in hand.  I do love FBW and have donated and will continue to do so.  

On 2/1/2022 at 10:48 PM, knich said:

Anyone know if this can be done with FBW and simbrief plan installed?

I tried and I could not since no flight plan is loaded from the world map.

You can SLEW all you want.  I do this sometimes when I get back to the cockpit late and need to descend fast, or back up from the approach, etc.

2 hours ago, Mike S KPDX said:

Yeah, the VNAV function is not implemented.  I kind of find this odd because as I understand it, they cant implement fully correctly without Asobo's improvements.  They also said if they cant do it to match the real function they will not do it (true with the ground and wx radar).  However, they have produced LNAV that does not fully function like the real aircraft.  Yes they are working on that but I have incrementally improved over the months.  I guess what I am saying is why not incrementally improve both LNAV and VNAV together, yes you may not have all the vars you need (yet) but you would have something.  And for what it's worth, throw in the default wx and ground mapping because one will never have a real life correctly implemented sim wx radar (that data will never be available). 

I am just a bit bummed when I see the advancements made in LNAV yet a geometric path in VNAV (with associated PFD displays) essentially untouched as both of these systems work hand in hand.  I do love FBW and have donated and will continue to do so.  

Lets see if how Fenix deals with these issues. Not a swipe at FBW they are doing great work with what they have and its pretty much the only AC i fly. Im just curious to see how the other guys are getting around these limitations.

Edit .. Today i did notice TOD for the first time in the flightplan today so it looks like its still being worked on.. But you know ... we are a ravenously greedy bunch when it comes to stuff like this.

Edited February 5, 20224 yr by Maxis

3 hours ago, Noel said:

You can SLEW all you want.  I do this sometimes when I get back to the cockpit late and need to descend fast, or back up from the approach, etc.

I hven't used SLEW...after you SLEW do the plane remain stable or does it go haywire?

5 hours ago, Mike S KPDX said:

as I understand it, they cant implement fully correctly without Asobo's improvements.

This is not the case, there is full potential for implementing pretty much any purely system-internal logic of the real aircraft.

5 hours ago, Mike S KPDX said:

However, they have produced LNAV that does not fully function like the real aircraft.

The LNAV is based on the IRL software design of the A320 FMS (specifically the Honeywell H3 software) and uses many of the exact same algorithms. It is based on deep technical references that we have used. Yes, it doesn't implement all functionality, but if you look at the experimental version specifically, it's already very close.

 

5 hours ago, Mike S KPDX said:

I am just a bit bummed when I see the advancements made in LNAV yet a geometric path in VNAV (with associated PFD displays) essentially untouched

Hmm. We have posted screenshots of VNAV being demoed a few months ago, and the VNAV branch has recieved constant work since last year (keep in mind it is at the moment in one continuously squashed commit):

https://github.com/flybywiresim/a32nx/tree/experimental-vnav/src/

It is not untouched, rather, many things, like the VPATH law, have already been implemented in their first version, hidden away until the rest is ready.

Development is often a discreet afair. You may not hear the fanfare others put out, but we are working hard on almost everything people want.

Edited February 5, 20224 yr by holland786

For those wishing for more (work in progress, as always) VNAV previews:

à

50 minutes ago, holland786 said:

Development is often a discreet afair. You may not hear the fanfare others put out, but we are working hard on almost everything people want.

We want fast travel or faster sim rate .  🙂

2 minutes ago, knich said:

We want fast travel or faster sim rate .  🙂

Doesn't mean either are easy to support. Working on stuff does not mean you will get it immediately.

Sim rate is already supported. You just need to have sufficient FPS.

36 minutes ago, holland786 said:

Doesn't mean either are easy to support. Working on stuff does not mean you will get it immediately.

Sim rate is already supported. You just need to have sufficient FPS.

Wasn't suggesting anything is easy.  Just ask Asobo...lol.  I primarily fly the FBW as it is fantastic!

I was simply requesting/hoping for feature in future.  Nothing more.

Yes sim rate maxes at 4 but it goes to 64x with default plane.  Was hoping for faster rate for long ocean flights.  But will try the SLEW.

1 hour ago, knich said:

Wasn't suggesting anything is easy.  Just ask Asobo...lol.  I primarily fly the FBW as it is fantastic!

I was simply requesting/hoping for feature in future.  Nothing more.

Yes sim rate maxes at 4 but it goes to 64x with default plane.  Was hoping for faster rate for long ocean flights.  But will try the SLEW.

The difference is that the default plane has no complex systems to run with stable control loops and physics simulations. Ours does, so it does not like high simrates much - higher simrate = higher rate of information coming into the systems.

 

We have made improvements to this in the past, so it is possible this will be further improved in the future 🙂

 

 

19 hours ago, holland786 said:

This is not the case, there is full potential for implementing pretty much any purely system-internal logic of the real aircraft.

thank you for the clarification, I recall that I read on the FBW discord that there were some items that could not be structured within the sim.

The LNAV is based on the IRL software design of the A320 FMS (specifically the Honeywell H3 software) and uses many of the exact same algorithms. It is based on deep technical references that we have used. Yes, it doesn't implement all functionality, but if you look at the experimental version specifically, it's already very close.

Very true, we both agree it is very close, great job.

Hmm. We have posted screenshots of VNAV being demoed a few months ago, and the VNAV branch has recieved constant work since last year (keep in mind it is at the moment in one continuously squashed commit):

https://github.com/flybywiresim/a32nx/tree/experimental-vnav/src/

It is not untouched, rather, many things, like the VPATH law, have already been implemented in their first version, hidden away until the rest is ready.

Development is often a discreet afair. You may not hear the fanfare others put out, but we are working hard on almost everything people want.

My apologies, 'untouched' was inappropriate use by me.  My intent was describe that we have seen the development of the LNAV via the many releases and steps along the way.  In other words we could see and use the incremental development.  However, I dont think we have seen a similar deployment to the public for the VNAV work.  It appears there has been much work behind the scenes for this and bravo on that effort, thank you very much again.

 

21 hours ago, knich said:

I hven't used SLEW...after you SLEW do the plane remain stable or does it go haywire?

Yes, very stable!  It really is the easy solution if for whatever reason you're out of position.  This being said I'm using the 787 HD mod mostly.