Version 1.21 is an interim fix that corrects autopilot IAS hold limit and increases roll authority for autopilot.
https://flightsim.to/file/3655/asobo...ct-version-1-0
A couple of nice looking cockpit reworks.
Beige and black.
http://www.allflightmods.com/microsoft-flight-simulator-2020/msfs2020-aircraft/cessna-citation-longitude-cockpit-livery-black-beige/
Light grey.
https://fs-2020.org/d/87-cessna-citation-longitude-cockpit-refresh
Do you know if it works with the Workingtitle G3000 mods (which also affect the longitude?)
FAA ZMP
PPL ASEL
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No, sorry I don't know.Originally Posted by ryanbatc
Not sure what they did to the flight dynamics but I could not get the model to settle into a proper decent rate on approach without the stall warning (voice annunciation) going off. If I kept the power set to avoid that parameter, I'd have floated over the airport every time. They need to fix this issue!
[SIGPIC][/SIGPIC]
An impressive upgrade for the Cessna Citation Longitude.
https://flightsim.to/file/3655/asobo...ct-version-1-0
Version 1.40 Changes:
-All new exterior lighting upgrades from Uwajimaya including:
- Increased brightness/visibility of taxi and landing lights
- Added separate volumetric landing lights to give reflections inside clouds without being overwhelming
- Added alternating red/white beacon lights. In the real a/c, the white beacon is part of the recognition lights. Current FS2020 limitations prevent real-life behavior of recognition and pulse lights.
- Placed the source for the logo light on top of the engines rather than in the horizontal stabilizer.
- Lighting enhancements files are included in the main install folder - no separate folder or installation needed.
-Improved approach and landing performance to be much closer to spec for all a/c landing weights. Vapp to 500 ft and Vref+3 (or higher) to Vref at 50 ft is now possible with a flat approach attitude.
-Refinements to control force requirements (heavier) based on IRL pilot feedback.-Further improved time to climb performance closer to IRL specs.
-Revisions and fixes to bring stall annunciation speeds to near spec in all flaps configurations.
-Reduced auto-throttle hunting / surging behavior during climb-out.
-Further refinements to fuel consumption / thrust / N1 adjustments at cruise altitudes - optimized to be within 1% of Cessna spec fuel burn at FL430 and ISA conditions between M0.8 and M0.84.
-Further improved ground handling during taxi and takeoff.
-Fixed exterior pilot avatar display issue.
-Fixed engine exhaust plume display issue.
-Other small fixes and adjustments.
A nice flight video showing a trip from Heathrow to Schiphol.
A patch for recent MSFS release.
Version 1.41 Changes:
- Patches version 1.40 to permit compatibility with Asobo December 22, 2020 software updates.
https://flightsim.to/file/3655/asobo...ct-version-1-0
A hotfix for the MSFS current release.
https://flightsim.to/file/3655/asobo...ct-version-1-0Version 1.42 Changes:
- Resolves issue caused by Asobo Dec 22, 2020 update to ai.cfg file that prevents NAV mode from properly holding course line and producing undesired left and right autopilot roll commands while in NAV (and sometimes HDG) mode.
A number of changes in this upgrade. Read comments section.
https://flightsim.to/file/3655/asobo...ct-version-1-0
Version 1.50 Changes:
- Modified thrust and drag curves to allow accurate fuel consumption for Mach cruise between M0.74 to M0.80, where the Longitude operates most efficiently. Fuel consumption is optimized for cruise at 43,000 feet at ISA conditions - fuel burn numbers are now within 1% of Cessna spec at FL430 for all speeds between M0.74 and M0.84 and for most weights and loadings.
- Engine N1 and N2 limits implemented (96.79% N1 and 98.62% N2 in ISA conditions). In essence this is a crude attempt at implmenting one small aspect of the FADEC system that controls Longitude's engines. However, this does have the further benefit of limiting aircraft N1 (and therefore available thrust) in a variety of conditions, more accurately representing how the aircraft performs IRL. Please note this does have the disadvantage of introducing significant "dead space" in upper throttle lever angle / throw range when at cruise and some slight "bobbling" of fuel flow when at or above maximum throttle setting. This has been added to the open items list.
- Limited ITT to 955C at max takeoff thrust at rest on the ground in ISA conditions. As a trade-off, this further reduces maximum temperature while a/c in flight at maximum continuous thrust, a known issue within Asobo's turbine engine modeling.
- Adjusted center of gravity to more closely match real world figures and limits at various a/c weights and loadings.
- Adjusted Autopilot vertical speed hold to smooth autopilot commanded pitch changes.
- Adjusted autopilot altitude hold - reduced excursions from selected flight level while in cruise due to turbulence or other effects to within acceptable limits (+/- 65 ft of target altitude).
- Adjusted autothrottle speed hold - improved accuracy of autothrottle esp. during climbs - will now hold within 1 to 3 knots of target speed setting during climb and descent. Also reduced autothrottle induced hunting/surging behavior.
- Modified electrical bus tie to revert to default behavior (will be Off by default) to avoid problems with ground and APU power not working correctly when bus tie can't be closed.
- Increased intensity (brightness) of landing lights.
- White vertial stabilizer and belly beacon synchronized with wing and tail strobes.
- Reduced spoiler drag to a more realistic level.
- OnAir Virtual Airline compatible version included (must be installed in place of standard version if installation of OnAir compatible version desired - see installation notes below).
A small update, v1.51.
https://flightsim.to/file/3655/asobo...ct-version-1-0
Version 1.51 Changes:
Update to correct an issue with the revised CG limits in Version 1.50 affecting some aspects of aircraft handling.
A major upgrade.
https://flightsim.to/file/3655/asobo-cessna-citation-longitude-flight-dynamics-modifications-project-version-1-0Asobo Cessna Citation Model 700 Longitude Performance and Flight Dynamics Modifications Project Version 1.60
Featuring Optional OnAir Virtual Airline Compatible Installation Package
Version 1.60 Changes:
- Increased N1 maximum limit slightly and adjusted Mach drag curve between M0.78 and M0.80 to improve climb performance when using high speed or cruise climb profiles. Now the a/c will climb at 270 or 300 KIAS (using FLC mode) until intercepting approx 455 TAS and by switching over to VS hold (the Asobo Mach hold for the Longitude is bugged so FLC won't work correctly with Mach hold) to manually maintain this airspeed until reaching cruise altitude you can reach FL430 at MTOW in approx. 23 minutes, and at 32K lbs takeoff weight, in approx 16 minutes. This will approximate real world time to climb performance very closely. These changes will, however, allow for a higher N1 value (by about 1%) than is allowed by the FADEC in real life, and at low altitude and full throttle, the engine will exceed N1 redline slightly so watch your throttle. At cruise altitude (above FL400) and maximum continuous thrust, allowed N1 in ISA conditions is just under 90%. To maintain fidelity in your simulated flights, please consider keeping N1 values below 90% at cruise altitude.
- -Credit to GBTAW (Tim Wright) for finding a solution to the landing gear alerting function. This has now been corrected to eliminate erroneous "landing gear" audible alerts. The "Landing Gear" audible alert will no longer sound when at idle thrust in flight or at flaps 2 setting and landing gear up. Will only alert when flaps 3 is selected and landing gear is not down.
- Lighting improvements from Uwajimaya
-adjusted brightness of beacons
-adjusted timing of red/white flashes for further accuracy- Adjusted VS hold selection increments to 50 ft from 100 ft.
- Incorporated a handful of new parameters to increase engine ITT temperature while in cruise. This is an imperfect adjustment, but the a/c will now run at approx. 600 C in cruise vs. 400+ in prior versions. This has no effect on handling or behavior other than to get a little closer to real world values.
- Further adjustments to drag and thrust values to get ever closer to fidelity with Cessna test performance data for cruise at FL430.
- Included a cameras.cfg file with a slightly higher default view point over the glareshield.
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.
More improvements...
https://flightsim.to/file/3655/asobo...ct-version-1-0
Version 1.75 Changes:
- Fix is incorporated for problem with reverser sound coming on during flight while at high speed idle. Was achieved by adjusting minimum idle N1 value to 28%, without any knock-on effects on aircraft performance.
- Fixed low N1 power band (between 2x% and 60%) to provide more thrust control at low N1 values resulting in improvements to taxi and pattern power settings.
- Fixed issue with engine spoolup time being too quick and resulting in oscillations around target N1 value.
- Added altitude alert callouts from 500 feet to 50 feet when descending on approaches. 500, 400, 300, 200, 100, and 50 are modeled. Additional callouts may be possible by using third party mods available and may be included in subsequent release.
- Adjusted high angle of attack lift coefficients to produce more reasonable stall performance.
Some significant changes.
https://flightsim.to/file/3655/asobo...ct-version-1-0
Version 1.80 Changes:
- Significant changes to engine parameters to achieve improved, "on the numbers", climb performance at various aircraft weights. Aircraft should follow Cessna spec climb profiles (300 IAS to intercept Mach 0.8 - 457 to 460 KIAS for high speed climb, for example). The aircraft should be able to intercept M0.8 and hold this speed for a climb of approx. 23 minutes to FL430 at MTOW and 16 minutes to FL430 at a takeoff weight of 33k lbs. Climb profile used in Cessna's testing for high speed climb is 290 KIAS to 10k feet (unrestricted climb), 300 KIAS to intercept with M0.8 (at approx. FL300) and hold M0.8 to cruise altitude.
- Adjusted engine thrust output as a function of N1 to bring this much closer to real world published N1 / performance results. The range of N1 values needed to maintain specific airspeeds, in particular at cruise, is quite narrow. This update improves performance to replicate this more narrow band of N1 vs thrust performance.
- Adjusted PID values for autothrottle to improve speed capture and hold speeds in general and with narrower N1 / thrust banding. There will be more/faster throttle lever movements and adjustments, especially at lower altitudes and airspeeds. This is somewhat experimental at this time.
- Adjusted aircraft lift paramaters to bring aircraft closer to real world V-speeds.
- Further adjustments to stall speed boundaries and aoa limits. However, achieving realistic stall performance at the manufacturer tested speeds has not been possible without disrupting other significant aspects of aicraft performance - the sim doesn't read all values in the lift coeffiecient aoa table entries which makes this effort somewhat limited.
- Slightly increased elevator authority to increase pitch control, especially at lower speeds like during takeoff and approach.
- Corrected flaps lift coefficient after Asobo update from Feb. 16, 2021.
- Corrected missing altitude alert callouts in OnAir version.
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.
- Please read and follow the installation instructions in the included Install_ReadmeV1.80.txt file carefully.
Three upgrades since last notice.
https://flightsim.to/file/3655/asobo-cessna-citation-longitude-flight-dynamics-modifications-project-version-1-0
Version 1.82 Changes:
- Fixes an Asobo bug in the panel configuration files borrowed from the Aviator's Livery (used to address the gear warning and to implement the altitude call-outs) that was causing users of version 1.81b, who after having reinstalled the default Longitude and installing 1.81b, to no longer be able to see the external / tail registration number for the Longitude, or for any Longitude third party Liveries. If you are not having issues with your prior version of the Longitude mod, through version 1.81, you don't need this update, but this fix will be carried forward into future updates to ensure stability and to avoid this bug recurring.
Version 1.81b Changes:
- Should resolve the issue for those who have had problems with installation of 1.81 with the Longitude no longer showing up in the aircraft selection menu. There are no changes other than updating the layout.json file. If you have not experienced issues with this, there is no need to download and install this version. If you have problems seeing the Longitude or have CTD issues after installing 1.81b, try removing the mod, then delete the default Longitude from within the sim using the content manager, then reinstall the default longitude using the content manager, then reinstall the mod as instructed.
Version 1.81 Changes:
- Reverts flaps lift coefficient back to prior values in response to Asobo's March 02, 2021 hotfix correcting Asobo's UK update error. This update will restore proper take-off, approach, and landing speeds after the Asobo hotfix.
A hotfix and upgrades.
https://flightsim.to/file/3655/asobo-cessna-citation-longitude-flight-dynamics-modifications-project-version-1-0
Version 1.83 and 1.83a Changes:
- 1.83a fixes an omitted reference update to the layout.json which caused the autopilot behavior to revert to the default Longitude. If you've already downloaded 1.83, you may simply replace the layout.json file in the official Longitude folder with the new one included in the 1.83a package. Otherwise 1.83a and 1.83 have identical files, file names, and version naming - no other changes have been made. If you are installing from 1.82 or earlier versions, simply install 1.83a as normal.
- Restores compatibility with March 9 2021 Asobo update. The mod should work for all users once the Asobo update is installed.
- Important note 1: As of the March 9 update, older versions of Working Title G3000 suite are not compatible with the default Longitude or with the modified version (I have not tested their most recent version). Revert to default avionics (remove Working Title G3000 modifications) until Working Title has an update available that is compatible.
- Important note 2: Asobo have implemented a mach meter and mach hold setting indicator in the PFD speed tape. They have also fixed the Mach Hold functionality to work properly as altitude changes. These are welcome fixes / improvements. However, the barber pole in the speed tape is now further bugged and is now tied to the Mach meter transition speed (transition between True Airspeed indication and Mach). This is set to Mach 0.78 in the mod (0.79 in Asobo's latest update). This means that once transitioned to Mach readout above approximately Mach 0.78, your airspeed will be in the red. There is no clear fix for this other than doing away with the mach meter except when above Mmo overspeed (Mach 0.84). I've elected to leave this alone for now so we have a functional Mach meter and hope that Asobo will correct in a future update.
Upgrade to 1.85 for SU5.
Aug. 2, 2021: New Update Available - Fully compatibility with SU5
- 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.
https://flightsim.to/file/3655/asobo...ct-version-1-0
Recent upgrade to v1.90A. Fully compatibility with SU6
https://flightsim.to/file/3655/asobo-cessna-citation-longitude-flight-dynamics-modifications-project-version-1-0
- Restores aircraft lighting effects omitted from V1.90
- 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 for the following:
-Low Fuel caution
-Fuel Imbalance caution
-Jet Starter advisory
-Anti Ice advisory
-Pitot Heat caution
-ITT Engine Temp warning
-N1 Overspeed warning
-Engine Fire Warning
-Generator Off caution
-Battery Off caution
-Parking brake annunciators
-Oil Pressure Low annunciators
-Oil Pressure High caution
-Oil Temperature Low annunciators
-Oil Temperature High caution
-Cabin Pressure caution
-Cabin Differential Pressure caution
-Wear Oxygen Mask caution
-Gear Unsafe Warning
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