Working Title CJ4 VNAV Descent and RNAV Approach

[@thecorporatepilotdad]

One of the aircraft I fly in real life is a Citation XLS+ with the same avionics. I have been making KZbin tutorials since September and this by far is THE BEST thing to happen to FS2020. I love how functional the FMS is and the fact that VNAV WORKS! Simply amazing!

[@ItzChickenYall]

Hey I watch your videos! It really helps alot

[@mxcollin95]

I watch your videos too and have learned a lot so please don’t quit making them. 👍

[@thecorporatepilotdad]

@@mxcollin95 I haven’t quit but did slow down. KZbin revenue isn’t rewarding enough to go at the rate I was at. Videos have been stolen which forced me to make certain high-effort videos available to channel members only to help with both of those issues.

[@Sy-T007]

Fantastic, this is by far the best aircraft in MFS thanks to this mod

[@julian7058]

Wonderful video. It gave me a little chuckle when the runway was all the way to the left once you peeked over the instrument cluster.

[@Jeff-ct2xe]

I need to study more on VNAV as it's way harder than I thought. I wish the FMC would take my flightplan from Simbrief and just put in all the constraints, etc.

[@Fynus]

I believe the constraints are encluded in the NavData. I am using the Navigraph Beta and most constraints are in there

[@stenne9615]

What a great job you're all doin. I love this aircraft. Many thanks to you all for what you bring to us.

[@robertnorman8184]

Great intro for me to the WT mod. I just graduated to a PC from XBox so now have much more functionality. Looking forward to exploring the WT CJ4 and appreciate the fine description of VNAV Descent. New Subscriber!

[@2007johnrbanks]

Excellent tutorial VNAV -RNAV!

[@epilot-r3g]

Real heroes make tutorials with citations, thank you !!!!

[@EdMeyer22]

Thanks for this - you made it easy to understand for me

[@jhogoboom]

Great videos. Incredible mod and really appreciate all the work!!!

[@virtualDon]

Great demo! FWIW, the charts say "RNAV RY 15 final approach offset 2.79 degrees", possible to avoid overflying the monuments on the other side of the Potomac.

[@TheRealPlato]

Thanks, looks like the problem I was encountering was having selected altitude higher than the vnav constraints!

[@evidenceplz]

Thank you dev. You are great! :)

[@mxcollin95]

Good stuff! 🤙

[@davidkalinowski2623]

I have a question about the FMS. I've been watch you tube videos on using VNAV on the FMS. It shows the flight plan legs text in different colors to show what's active etc. Also the MFD shows the TOD where the VNAV starts decent. I usually do my flight plan through MSFS, however once I'm in the game the FMS text is just white and I can not select or change any inputs. What am I doing wrong? Is there anything out there as in a tutorial for using the FMS? Thanks!

[@jg8104]

For the next update, would it be possible to implement the feature in the FMS to turn off the water display on the PPOS map? When I flew the Premier, I never turned on only water display since It’s really not that useful and more of distraction unless you’re also displaying geopolitical borders, and especially if I was displaying WX radar or EGPWS (which I’m keeping my fingers crossed that at some point can be added to this CJ4) the blue water color doesn’t combine well with radar returns or TAWS displayed. I actually usually never turned on any of these background map features of the PPOS map except for airspace when departing VFR from an uncontrolled airport and getting my IFR clearance in the air, then I would turn on the airspace display on the PPOS map which was very useful (to make sure I wasn’t flying into Class B, C, D airspace until I received my clearance). I’m not sure if adding the option to display airspace on the PPOS is a possibility, but I would think you could pull it from the G3000 code like you mentioned was a possibility for EGPWS display. I would love to hear your thoughts on what you think might be possible and what’s not! Thanks again for the great work already done!!!

[@davidh7280]

This is superb! Beats the 32Nx, which still ignores constraints in managed altitude mode, which ruins the Airbus sim? The CJ4 is looking really good now and more like a true simulation.

[@Aleksandar6ix]

The start of descent is pretty aggressive... What about using VS manually to capture the donut then activating vnav descent? Much more comfortable for the passengers. Similar tactic is used when reaching cruise altitude in FLC.

[@thumbliner]

Again, thanks a lot.

[@torgeirpedersen6521]

Thank You great, Christmas gift.

[@marcw.5492]

Nice video ! very good detail here... What if you dont get TOD what does that indicate ? Also did the GPS data provide the complex altitudes ? And I keep seeing PATH with a line thru it. More learning curves. Iterestingly the Citation X FMS in XPLANE doesnt seem to allow the entry of altitudes like this, and frequently I cant select the VNAV button. But the VNAV is really cool ! Its stuff I thought was very standard for any Auto Pilot navigation - In DCS I have to press A then select Return or Land, then control speed - maybe thats just not realistic.

[@paulblart8243]

Hello, I'm new to the jet world and I'm flying at Citation XLS+ with the proline 21. I'd like to find a flight simulator that accurately represents the avionics. Does this come standard with flight simulator? Which version of the game are you using? Any help would be greatly appreciated.

[@RetiredFE]

Outstanding tutorial..Thanks.

[@PilotDaveAviation]

Thanks for the video

[@patches8291]

Great work! Thank you!

[@jg8104]

Awesome work!! I flew a premier jet for a while which has the proline 21 and FMS3000 and your VNAV implementation for descent is like the real thing!! I saw the list of future enhancements. Will missed approach procedures ever be in the nav database? Also a real EGPWS (not just showing topography like it currently does) would be a welcome feature. Thanks again for the work!!

[@K20017]

Yes, missed approaches are in the nav database and will be implemented and it's on our list. GPWS is gonna be tough to do but the guys working on the Garmin have devised a way to display the current terrain relative height in the blotchy type format you'd see from a terrain database. So we've been looking into it.

[@jg8104]

@@K20017 Awesome. Thanks again for the work. I feel guilty flying it for free. You have made it payware quality. What’s cool about the ability to turn any runway into having an LPV like approach is it’s actually somewhat realistic to the real avionics. I remember from flying the Premier that you can select “Visual Approach” in the FMC and it will give you a three degree glide slope down to any runway. I can imagine EGPWS would be difficult. TCAS would also be great. I’m being greedy but a realistic WX radar would be icing on the cake (although you mentioned possibly using some code from the work done on the G3000 to add EGPWS so couldn’t the same thing be done with the WX radar code already implemented in the G3000?) Anyway I have been waiting since FS9 for some addon company to release a close to “study level” single pilot rated private jet. If I had my pick of which jet I would want (both in MSFS and real life) it would be the CJ4 so I am just ecstatic about this project!!! I’m currently flying a CJ3+ and while the G3000 is very cool, there’s something about the Proline 21 that I’ve always found really attractive. I think it’s having the large compass arcs on both the PFD and MFD allowing for endless combinations of displaying hazard avoidance systems like TCAS, EGPWS and WX radar on each display (even when the PFD is not in PPOS mode). Anyway thanks again!!!

[@paulblart8243]

When you use approach mode on an RNAV approach do you have to have VNAV active for it to capture the GP? So, if you were in ALT mode only with APPR armed will it still capture the GP?

[@HazyJ28]

What's the difference between the stock CJ4 and the WT Mod version?

[@s.labrasca7369]

Where is this CJ4 simulator Proline 21 available?

[@Birdman445]

Great Video! Question... I can’t figure out how to set and display minimums? Thx

[@NewJerseyJay]

I downloaded and installed the update.. went into MSFS 2020 and all I had was rings around the windscreen.. I didn't have a cockpit or anything.. I installed it into my community folder so I don't know what the deal is.

[@jhogoboom]

I had a similar problem. Turned out I downloaded an earlier version of the mod. Make sure you download the most current version. Re-installed v0.9 yesterday and it worked fine.

[@Ernestodimart]

So if you correctly insert altitudes in FMS in possible visual landing using VNAV like RNAV?

[@hiortintexasracing]

Do you always press Approach BEFORE the TOD ? I had a problems were VNAV start the decent at TOP (I had not engaged Approach. (Great tutorial !)

[@markrussell4328]

Can someone please help me where I can find and download the mod? Thanks

[@sergey79]

Where do you enter minimums?

[@HazyJ28]

What about ATC though? Won't they bitch and cancel my IFR flight plan if I deviate from the altitude they assigned me?

[@oldRighty1]

If ATC assigns you a different altitude, then you would enter that manually and use FLC or VS, not VNAV.

[@AboutOliver]

Fantastic!

[@peteracain]

Damn fine work. Is there any progress page showing ft deviation from vpath?

[@K20017]

There isn't on the real unit, all you'd see are the FMA readouts and the pink snowflake.

[@peteracain]

@@K20017 ok thanks. Once again great work

[@tent405]

OK! I think I'm slowly figuring out VNAV. But one quick question: what is MAX DIFF MODE? I got it after doing a warp, and it messes up my middle display section.

[@K20017]

That message shouldn't be there and we should have removed it but it's a bug when you seem to spawn the aircraft in the air. Unfortunately the only fix I've found is to restart the flight.

[@ReefAndReptileAutomation]

Can VNAV be used for Ascending also? Or is it strictly for decent? Thanks for the hard work! Wish the rest of the planes had this much put into them!

[@K20017]

It can be used to a climb but it's only useful if you have a "AT OR BELOW" fix. Because the CJ4 climbs so fast, any sort of "AT OR ABOVE" fix is of no concern. However, a VNAV climb doesn't follow a path, it's really just a tool that helps you level off at fixes.

[@ReefAndReptileAutomation]

Ok I’ll give it a try thanks! I just tried to do an RNAV approach and it said VGP in green. However the plane remained at altitude and never followed the GP?

[@K20017]

@@ReefAndReptileAutomation Bug we are now discovering and investigating.

[@martynbrinton]

Not sure what I'm doing wrong. I created (in LittleNavMap) a flight plan that I loaded into MSFS and took off, levelled out at 6000ft. I changed several legs to increase my altitude using /7000A, then a leg to /6000A. It didn't climb to the 7000ft. I did it manually and it didn't descend to the 6000ft. Thought I understood it, but clearly not! I didn't see any of the indicators like the snowflake.

[@K20017]

@@martynbrinton There's no actual path in a climb and VNAV isn't really used that way in a climb, it's only used to level off. If you want to climb, you would just set a higher altitude in the preselector and press FLC.

[@grillodon]

Is there a way to load a coroute from the FMC? And if yes, In which folder should I save it?

[@K20017]

Not yet

[@johnmercer8412]

How do you decide the altitude limits for each point?

[@K20017]

It's pulled from the navdata or you can input them based on charts.

[@rainmaker1011]

How do I scroll via thw FPL in MFD, fix by fix? Thx

[@K20017]

Go to PLAN view in MFD and then click on MFD ADV button on the FMS

[@paulf2184]

Link to latest version doesn't work. It's been truncated somehow. Is VNAV working in V0.7.3? (Edit: Found the answer 2 secs later. V0.8 Beta) Looking forward to giving this a go.

[@K20017]

Fixed.

[@aidanmochan306]

Awesome will have to try this out later. Does VNAV work on the climb too or just Descent?

[@K20017]

Both

[@simoneguanziroli3310]

what is the difference with "above" or "below"?

[@Mantorix]

Above / Below altitudes are constraints. So basically you are telling the plane that it has to be at / below / above a certain altitude while transitioning through this fix. Typical scenarios are mountains or hills (for above) or crossing restricted airspace (below/above). Plain below is quite rare afaik.

[@awash-mg8ce]

Does it also have the cruise detent in .080

[@K20017]

Cruise doesn't have a detent, it's just the range from idle to CLB You'll understand how FADEC works quickly when you use it.

[@awash-mg8ce]

@@K20017 Cool I'm at clb and it's at .74M

[@egg-iu3fe]

this guy sounds like bighead from silicon valley hbo

[@ludocusters3792]

you talk too much to yourself, and you forget having a "non pilot" audience that wants to understand and learn. But keep going, you will learn

[@wellzy999]

Yeah.. i didn't understand any of that.

[@SternenOlli]

GREAT WORK THANK YOU VERY MUCH !!