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Asobo Cessna Citation Longitude Flight Dynamics Modifications Project Version 1.95

July 27, 2022: SU10 Beta will be out for quite some time before it becomes an official update (August 23 is the planned release date). Until it is officially updated for all game customers, I will not be posting updates to try to...

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July 27, 2022: SU10 Beta will be out for quite some time before it becomes an official update (August 23 is the planned release date). Until it is officially updated for all game customers, I will not be posting updates to try to make the package compatible with the beta release. In the meantime, check the Longitude modification forum as there are some solutions to the white screens problem and some other minor issues that may have come up. 

IMPORTANT, READ FIRST
Installation / Mod Package Notes: 

  • You must have the deluxe premium edition of MSFS 2020 with the stock Longitude model to use this Mod. This mod is not a stand-alone aircraft. If you install without, you will see game crashes.
  • You MUST only install one or the other of the two package folders included - the Standard or the OnAir - NOT both, or you will have conflicts or game crashes. Installation is drag and drop into your Community folder - installation elsewhere will not work. If you don't know how to do this, there are many resources available to show you how to do this.
  • After the SU7 update, if you haven't done so already, you must also update the premium and deluxe premium content from the in-game content manager or you will not be able to use the Longitude (and other aircraft) properly.
  • With some limited exceptions, this mod doesn't address ANY major avionics modifications to the PFD or MFDs or general cockpit functionality. Unless you can clearly demonstrate otherwise, any bugs or issues with the cockpit functionality are not related to this mod. Please DO NOT inquire about avionics or instruments faults or bugs that you find with WT G3000 or the game's default avionics - I can't help you. These are not the subject of this mod. If installed correctly, the mod is fully compatible with the Working Title G3000 mod package. If you have problems with WT G3000, please inquire with the publishers of that mod - I have no affiliation with them.
  • You must have Modern flight model enabled to use this mod. It will not work properly with Legacy flight model settings.
  • To confirm correct installation, when in the livery selection menu for the Longitude in MSFS2020, the default Asobo Longitude livery will display the following in the variant area "FDE Fix V1.90" or "FDE Fix V1.90 OnAir" depending on the install version you choose. This will help you quickly identify whether installation of the package was successful and identify package version - this version information will only show up under the default Asobo livery listing and not other liveries, however the performance modifications will be applied to all liveries you have installed.
  • The mod does not work with all third party liveries. Some third party liveries are old/out of date and never did or no longer follow proper file structure / installation guidelines and are not compatible. As a result you may see instability or crashes when you do attempt to use these liveries. 
  • If your install doesn't work initially, before posting here or on the forum, please close the sim and remove the mod from the community folder. Start the sim and completely reinstall your default Longitude from the Content Manager under your Profile area to ensure you have the latest version. Verify the stock / default Longitude is present and works correctly. Close the sim. Re-download the package here and then re-install the mod as directed (downloads from this site can become corrupted, so that can be a cause of problems with the mod). Restart the sim and verify installation. If this doesn't work, PM me. 

 

Asobo Cessna Citation Model 700 Longitude Performance and Flight Dynamics Modifications Project Version 1.95
Featuring Optional OnAir Virtual Airline Compatible Installation Package

Please check out the chatter and follow the progress of this project on the offical MSFS 2020 Forum:
https://forums.flightsimulator.com/t/cessna-citation-longitude-flight-dynamics-modification-project

  • -Restored thrust reverse toggle control after SU7 patch update - thank you Nezz
    -Activated fuel transfer pump function using in cockpit fuel transfer switch (approx. 6 gallons per minute (20 pounds / 30 seconds) per spec). This was inop previously.
    -Fuel Transfer and Boost Pump Advisory CAS (implemented basic logic)
    -revised fuel low warning to spec (500 lbs / 75 gallons or less per side)
    -revised glideslope pid to match stock a/c (better or not - can’t tell, but best to match the Asobo code if there’s not discernible reason to deviate)
    -revised nav hold pid
    -updated some minor panel.xml code to match post SU6 Asobo changes
    -“fuel valve closed” CAS caution logic
    -“spoilers disarmed” CAS caution logic
    -Fuel Boost Pump 1 CAS advisory
    -Fuel Boost Pump 2 CAS advisory
    -APU Gen Off CAS Logic updated (only triggered when APU% above 80)
    -Fuel Pressure CAS warning deprecated (couldn’t trigger in my testing but others have?)
    -Revised pitot heat CAS based on temperature (vs altitude) - Ubergeek
    -ISA deviation now displayed in MFD - Thank you Nezz
    -Green Trim range color now displayed in MFD - Thank you Nezz
    -Added Icing Caution CAS if Pitot or Airframe accumulates more than 10% icing coverage.
    -Revised Autothrottle PID to reduce autothrottle overshoot at high Mach number.
    -Minor electrical circuit pathway changes (real world circuit diagram and electrical bus assignments is proprietary, so this just constitutes some minor improvements based on pure guesswork).


Please see version notes in the included install_readme file for a list of all changes made since project inception and a list of open items / known issues.

Installation:

  • Download the .zip file and extract to desktop or other location of choice.
  • Install either the standard or OnAir folder in your Community folder (not both)
  • Start the sim and enjoy the modded Longitude.
  • Please read and follow the installation instructions in the included Install_ReadmeV1.95.txt file carefully.




The Cessna Citation Model 700 Longitude Performance and Flight Dynamics Modifications Project:
After reading user comments on the forums regarding the Cessna Citation Longitude model from Asobo concerning major autopilot problems, inaccurate weights, fuel load, fuel consumption, handling, etc... and due to my own poor experience and frustration with Asobo's starting efforts, I started work on revising a wide variety of parameters in the configuration files borrowed from the Cessna CJ4 model to match the specifications for the Longitude. I modified the default layout.json file for the Longitude to bypass the encrypted configuration files and point to copied versions of non-encrypted files from the CJ4. These files have all been heavily modified and with a fair amount of guesswork I've been able to produce a working version of the Longitude that is more docile in handling and produces performance numbers that much more closely match the real-world specs. I'm not a Longitude pilot, so my modifications are based on comments on forum topics from those who fly the type, and generous contributions of real world C700 aircraft performance charts, flight manuals, and checklists from fellow flight-sim enthusiasts who fly IRL for a living. Input from type-rated pilots with knowledge of the aircraft handling and flight envelope will always be greatly valued.

NOTE: My adjustments are generally focused on performance and handling. Any issues with the G5000 suite and avionics in general are not the subject of this modification (check out the Working Title G3000 modification package for a major upgrade to the default avionics for the Longitude). If Asobo chooses to decrypt the xml files associated with the type, a motivated person could presumably further modify the avionics suite much like has been done with the CJ4 and other un-encrypted aircraft.

I have modified a great many variables and parameters in the available configuration files. I would greatly appreciate feedback on handling, control sensitivies, or other performance related parameters from knowledgable sources so I can continue to improve and update these modifications. If I missed something or you find a performance "glitch" please let me know.

Contribution credit and acknowledgements can be found in the Install_ReadmeVX.XX file included. 

Details
Kompatibilitet
Sim Update 10 0 6
Oprindelig udgivelse
November 18, 2020
Sidst opdateret
9 month(s) ago — 1.95

Version

1.95

Filstørrelse

165.88 KB

Downloads

82,786

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Citation Longitude

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Timeline

  • Opdateret til version 1.95

  • Opdateret til version 1.90a

  • Opdateret til version 1.90

  • Opdateret til version 1.85

  • Opdateret til version 1.84

  • Opdateret til version 1.83a

  • Initial File Release


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© dakfly0219 - All rights reserved. Enhver genindlæsning eller videredistribution af denne fil uden forudgående skriftligt samtykke fra forfatteren er forbudt. Denne Flight Simulator 2020 Mod blev skabt af dakfly0219 and shared in Aircraft » Aircraft Enhancements til Microsoft Flight Simulator.


1214 Kommentarer

Made the Change, copied the panel.cfg file,...THANKYOU VERY MUCH !!!!

Thanks Dillon that fix worked for me also. Thank You

Temp fix for display issue for SU10. Copy and paste this into your panel.cfg file located in your mod's panel.FDEFix folder, replacing the original entries:

[VCockpit01]

size_mm=1280,800

pixel_size=1280,800

texture=PFD_Screens

background_color=42,42,40

htmlgauge00=NavSystems/AS3000/PFD/AS3000_PFD.html, 0,0,1280,800

[VCockpit02]

size_mm=1280,800

pixel_size=1280,800

texture=MFD_Screens

background_color=42,42,40

htmlgauge00=NavSystems/AS3000/MFD/AS3000_MFD.html, 0,0,1280,800

[VCockpit03]

size_mm=480,640

pixel_size=480,640

texture=TSC_Screens_1

background_color=42,42,40

htmlgauge00=NavSystems/AS3000/TSC/Vertical/AS3000_TSC_Vertical.html?Index=1, 0,0,480,640

[VCockpit04]

size_mm=480,640

pixel_size=480,640

texture=TSC_Screens_2

background_color=42,42,40

htmlgauge00=NavSystems/AS3000/TSC/Vertical/AS3000_TSC_Vertical.html?Index=2, 0,0,480,640

[VCockpit05]

size_mm=512,350

pixel_size=512,350

texture=AttitudeDisplay

background_color=42,42,40

htmlgauge00=NavSystems/AS1000_BackupDisplay/AttitudeSpeed/AS1000_AttitudeSpeedBackup.html, 0,0,512,350

[Vcockpit06]

size_mm=230,45

pixel_size=230,45

texture=Hourmeter

emissive=0

htmlgauge00=Generic/Misc/HourMeter/HourMeter.html, 0, 0, 230, 45

[VPainting01]

size_mm            = 2048,512

texture            = RegistrationNumber

location         = exterior

painting00=Registration/Registration.html?font_color=black, 0, 0, 2048, 512

[VPainting02]

size_mm            = 512,128

texture            = RegistrationNumber

location         = interior

painting00=Registration/Registration.html?font_color=white,   0, 0, 512, 128

It's official, mod is incompatible with SU10. The displays no longer work with this mod.

Hi:

Thanks for your hard work. Just wondering, after SU10 I know you will try to make this mod. compatible however with that, will you be adding any new mods/updates/features/improvements?

Thank you

is there any ways not to have synchronized fms ?

Exelente trabajo. Muchas gracias...

image

DestructZero

3 month(s) ago / Takket af dakfly0219

For those of you seeing white screens with the SU10 Beta, check out Nerbulus' posts at the end of this thread. https://forums.flightsimulator.com/t/cessna-citation-longitude-flight-dynamics-modification-project/325768/2795

image

fafaf

3 month(s) ago / Takket af dakfly0219

I am having trouble with power in the longitude. Is anyone else having this issue? Other than that this addon is amazing.

Not working anymore in Sim Update 10 Beta

image

kingbelowme

3 month(s) ago / Takket af dakfly0219

Hey Dakfly! long time downloader first time poster. I just read that they finally opened the encrypted files to you guys in the beta SU10. Hopefully you can get a full crack at it now... My 2 cents, you got to make the reverse thrust much more powerful. I was in a C750 the other day and man the power of those reverse thrust slows you down extra quick. So if ya could adjust that a tiny bit.... but otherwise nice work! FYI The sim performance in SU10 is the worst yet. I don't even know if I want to fly that version, a 20-30 FPS loss

Is this mod working with the newest msfs version?

image

Emotionfan

3 month(s) ago / Takket af dakfly0219

Hello, what is the differnce between "FDE Fix V1.90" or "FDE Fix V1.90 OnAir"? Just two different livery-designs?

Hello everyone, I can no longer push the heading, Mach or QNH to standard buttons, and all my buttons and switches highlight and when hovered over. I haven’t flown it in a while, so I don’t know when this happened. Does anyone have a remedy for these issues? I uninstalled and reinstalled mod, but to no avail. Longitude is my primary aircraft, and I’d like to get it back to where it was the last time I flew it.

How do i get the Citation Longitude anyways

I've flown the Longitude with this mod probably 300 times, but over the last few weeks something has changed. In the past, I would set the AT to 250 initially, take off, activate FLC, and climb. When the plane got to about 245-255 knots, it would settle in. Perfect. But over the last few weeks, it blows past 250 and I find myself going into overspeed. I'm not doing anything differently of which I am aware. Did something change? Can I do anything other than to apply the speedbrake as I have had to do? Thanks for your help.

What’s the difference between standard or on air.? Plz I’m not being mean but why does this have to be difficult why can’t there be one folder

I think the engines are very weak. I had to give almost full power with fully extended flaps, as well as at FL400 and even in descent, fuel consumption is also high, the control stick constantly breaks into reverse (this does not happen on the standard model), very slow takeoff, especially from full loading, as well as the aircraft is not affected by turbulence and shaking, even with FSRealistic, this is present on the standard model. I read the pilot's review of this aircraft, he seems to be pleased, I am not. I hope you finish it, I'll leave a link. thank.

https://aviationweek.com/business-aviation/aircraft-propulsion/pilot-report-flying-cessna-citation-longitude

Amazing work guys! Where can we get your livery? N703DL?

image

MRL22

5 month(s) ago / Takket af dakfly0219

Love this plane now! Nice work!




Roadmap
Disse varer er i øjeblikket på listen og vil snart blive behandlet!
Backlog
Forslag, fejl og idéer til fremtiden.

  • Version 1.95 January 11, 2022

    -Restored thrust reverse toggle control after SU7 patch update - thank you Nezz
    -Activated fuel transfer pump function using in cockpit fuel transfer switch (approx. 6 gallons per minute (20 pounds / 30 seconds) per spec). This was inop previously.
    -Fuel Transfer and Boost Pump Advisory CAS (implemented basic logic)
    -revised fuel low warning to spec (500 lbs / 75 gallons or less per side)
    -revised glideslope pid to match stock a/c (better or not - can’t tell, but best to match the Asobo code if there’s not discernible reason to deviate)
    -revised nav hold pid
    -updated some minor panel.xml code to match post SU6 Asobo changes
    -“fuel valve closed” CAS caution logic
    -“spoilers disarmed” CAS caution logic
    -Fuel Boost Pump 1 CAS advisory
    -Fuel Boost Pump 2 CAS advisory
    -APU Gen Off CAS Logic updated (only triggered when APU% above 80)
    -Fuel Pressure CAS warning deprecated (couldn’t trigger in my testing but others have?)
    -Revised pitot heat CAS based on temperature (vs altitude) - Ubergeek
    -ISA deviation now displayed in MFD - Thank you Nezz
    -Green Trim range color now displayed in MFD - Thank you Nezz
    -Added Icing Caution CAS if Pitot or Airframe accumulates more than 10% icing coverage.
    -Revised Autothrottle PID to reduce autothrottle overshoot at high Mach number.
    -Minor electrical circuit pathway changes (real world circuit diagram and electrical bus assignments is proprietary, so this just constitutes some minor improvements based on pure guesswork).

  • Version 1.90a October 26, 2021

    Restores lighting effects omitted from 1.90

  • Version 1.90 October 26, 2021

    -Improved/corrected coefficient of lift settings to reduce unexpected / unrealistic accelerated stall warnings and stall warnings during takeoff and approach / landing.
    -Further improvements made to rudder to improve rudder performance in low speed flight.
    -Flaps modified to simulate more accurate flaps down stall onset speeds with small improvements to approach performance.
    -Incorporated further rudimentary engine overspeed and overheat protections (now it's very difficult to overheat or overspeed the engines).
    -Corrected flaps setting indicator in external view HUD to show correct flaps angle for Flaps 2.
    -Cabin pressurization altitude corrected to real world settings (5000 feet up to FL400, 5950 at FL450)
    -Removed all irrelevant PFD annunciators introduced in SU6.
    -Corrected, Modified, or Added annunciators and respective logic flows.

  • Version 1.85 August 02, 2021

    -Restored External view Head Up Display instrumentation after SU5 update
    -Corrected flaps setting indicator in HUD to show flaps percentage (previously was showing 0% for all settings).
    -Improved rudder performance for heavy crosswind takeoff and landing and more docile rudder handling in flight.

  • Version 1.84 May 28, 2021

    updates installation, resolves induced drag increase from FU4, increases steering angle at low speeds.

  • Version 1.83a March 10, 2021

    -Fixes omitted removal of ai.cfg reference in layout.json. Version name stays 1.83 for all other references.

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