Asobo Cessna Citation Model 700 Longitude Performance and Flight Dynamics Modifications Project Version 1.84
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:
- Simplified installation allowing drag and drop installation into community folder. No overwrites of Asobo official content required.
- Adjusted (increased) nosewheel steering turn angle limit to improve low speed taxi and ground handling.
- Adjusted the induced drag scalar to correct high altitude performance after Asobo SU4 (update to 126.96.36.199)
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.
- 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_ReadmeV1.84.txt file carefully.
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 V1.84" or "FDE Fix V1.84 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 will only affect the default Asobo livery listing and not other liveries, however the performance modifications will be applied to all livery versions.
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 also fly IRL for a living. Input from type-rated pilots with knowledge of the aircraft handling and 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 start modifying and improving 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.
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|April 23, 2021||
|Longitude Flight Dynamics Modifications Project||
|December 06, 2020||
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This Flight Simulator 2020 Mod was created by dakfly0219 and shared in Aircraft Liveries » Cessna Citation for Microsoft Flight Simulator.