


=================
Sierra C24R (MSFS 2020 / 2024) V1.2.6 / V1.2.7
August-31-2026
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New Feature:

1. Added a full cabin climate control system, along with a portable panel-mounted temperature and tank timer unit that displays Fahrenheit and Celsius and can remind you when to switch fuel tanks. The tank timer can be disabled while still using the temperature display, or the entire unit can be hidden from the panel through the EFB options.

2. Added our True Sim custom binding software to the EFB, allowing keyboard and joystick buttons to be assigned to custom aircraft controls, including switches, knobs, and levers using button-based controls. We also added a special binding that can install or remove all exterior covers with a single toggle instead of changing each cover individually through the EFB.


Updates:

1. The C24R now includes additional TruSim technology, bringing the attitude indicator and HSI to life with more realistic instrument behavior.

2. The C24R HSI has been updated to include a functional TO/FROM flag.

3. The attitude indicator has been upgraded to the Sigma-Tek S-TEC 5000 B Series and now includes a functional GYRO warning flag.

4. The CGR-30P Estimated at Destination functions now allow the pilot to select between DEST and WPT by pressing and rotating the knob. The Estimated Distance, Estimated Quantity, and Estimated Time pages will display calculations for either the selected waypoint or final destination based on this selection.

5. The aircraft now rocks more noticeably left and right while the starter is cranking, with the effect increased to better represent the vibration of the four-cylinder engine during startup.

6. Main battery capacity increased to 25.0 amp-hours, with backup battery capacity updated to 7.0 amp-hours for more accurate electrical endurance.

7. Updated the LesIsMore G5 and GTX 345 instruments by Les O'Reilly with additional features and improvements. Updated operator manuals for both instruments are included with the additional product documentation. The GTX 345 update includes expanded functions such as altitude monitoring and a "LEAVING ALTITUDE" alert system.



Bugs:

1. Fixed a GNS 530/GNS 430 indexing conflict that could cause the two GPS units to conflict over autopilot control in MSFS 2020.

2. Fixed a typo in the checklist where "quartz" was incorrectly written as "quarters."


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Sierra C24R (MSFS 2020 / 2024) V1.2.5
January-1-2026
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Bugs:
1. GNS 530 / 430 knob animation sync fixed: Corrected an issue where certain knob animations on the GNS 530 and GNS 430 could “cross-contaminate,” causing controls on one unit to animate the opposite unit. Each unit’s knob animations are now properly isolated and behave independently.

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Sierra C24R V1.2.4
8-4-2025
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Bugs:
1. The G3X GNS530 panel autopilot was broken due to a code configuration issue in the last version V1.2.3. Fixed.
2. All three G3X panel interior models were exported without some of the standard gauges (engine hour, ELT, ect..) Fixed.

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Sierra C24R V1.2.3
7-7-2025
=================

Updates:
1. The glass on the G3X, G5 and the GTN bezels was updated to prevent bad contrast.
2. Added Relative Wind feature to G5 HSI mode.
3. G3X Update - Navigraph Plugin to Version 2.0.4

Bugs:
1. The prop blurred effect was not animating and just looked static for any rpm. Fixed.
2. The steam attitude pitch card accuracy is now fixed.
3. Using the TDS GTN750 and you are in an active gps nav mode then changed to heading mode the aircraft will pitch slightly or sometimes a lot which is a bug and is now fixed.
4. G5 Fixed - 2024 Font issues.
5. G5 Fixed - 2024 Phase of Flight Issues. (added Event Bus Support)
6. G5 Fixed - 2024 HSI GPS Distance display not displaying. (Internal Sim Bug work around)
7. G3X Fixed - 2024 - Map Layer Flickering.

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Sierra C24R V1.2.2 (Xbox Only!)
6-5-2025
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Updates:
1. Updated the PMS50 GTN750 to the current version!

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Sierra C24R V1.2.1
4-12-2025
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Bugs:
1. The GTN650/750XI from TDS was not showing the data on the HSI for the Steam Panel. Fixed.

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Sierra C24R V1.2.0
4-8-2025
=================

Updates:
1. G5 units got a major update. See text file called "LimG5UpdateChangesMarch.txt" for specific updates included in the info folder. 
2. Flight Dynamics update. Improved rudder and aileron control and Reduced drag. 
3. We temporarily removed the custom registration liveries called N8888 until Asobo fixes the 2024 sim to use this feature.
4. Avionic options are all included on a single panel for the G5 and Steam panel. Use the EFB tablet to change between the GNS530, GTN750 or the GTN750XI. Or change the G5 to the Steam panel. If you are in the steam panel you can also change between CGR's and the steam engine gauges. So overall you have 3 sets of options. Visit the options page on the tablet and see the new changes there. 
NOTE: Any paint mod will fully work but will be missing some livery names and/or have wrong names. We suggest to notify the developer to update accordingly.

Bugs:
1. The VOR gauge from the steam panel was not showing the LOC flag correctly and is now fixed.

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Sierra C24R V1.1.5
12-14-2024
=================

Updates:
1. All panel circuit breaker decals are updated and new decals for the steam panel.
2. Reduced parasite drag scalar for more accurate cruise speed.
3. Passenger head and eye animation is now faster.
3. New installer for the FLYSTORE now includes options to install to 2024.
4. Includes some updated code to fix the dark LCD screens bug for 2024.


Bugs:
1. Some of the equipment text labels on the tablet were reversed. Fixed.
2. Compass glass was using the windshield as glass. Fixed.
3. Passengers were black at night with the cabin light on. Fixed.


New Features:
1. Three new steam panels. GNS530, GTN750 and GTN750Xi.
2. Three new custom registration liveries called N8888. The custom number will show on the fuselage and on the panel registration placard. 
(Select one of the three N8888 liveries and then change the registration number from the tab called tail number under the sims customization UI page.) 

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Sierra C24R V1.1.4
10-6-2024
=================

Updates:
1. Texture memory size optimized for PC/Xbox performance by 50-70%. 

Bugs:
1. Tablet text for some passengers are no longer upper case.
2. Passengers and luggage can now be seen from the exterior camera from a further distance. This was V1.1.3 only.
3. The instrument light and knob position save state is fixed.

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=================
Sierra C24R V1.1.3
10-4-2024
=================

Updates:
1. New HD animated passengers.
2. New seat textures.
3. Com/Mic transmit buttons now work for the GMS340 audio unit.
4. Wind sound got updated for more realism.
5. HTML gauge animations forced on when the sims options/general options/accessibility/ "menu animations" is off. 
6. The Ammeter on the pilot lower panel will not show positive charge when the battery is fully charged. We added custom code since the sim does not provide a realistic ammeter variable.

Bugs:
1. Crash effect was not working due to a bug when you have crash enabled. Fixed.

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Sierra C24R V1.1.2
09-30-2024
=================

Updates:
1. Chocks added to the save state.
2. We now include a PDF on how to move your community folder for PC users that have the path too long error. See the folder called "ERRORS INFO".


Bugs:
1. Spawning in the air is fixed.
2. The TDS GTN650Xi buttons and knobs hotspots are all now working correctly.

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Sierra C24R V1.1.1
09-28-2024
=================

Updates:
1. More engine detail sound with window or door open.
2. Sound volume lower for throttle, Prop, and fuel boost pump.
3. Both the GTN750(Xi) and GTN650(Xi) have brightness control from the instrument light control.
4. Heat exhaust effect was added the the engines exhaust pipe.
5. The G5 units now have larger text for VR users and overall improved ability to read the font.


Bugs:
1. The tail cover stitches and decal now hide when the cover hides.
2. Horsepower percent fixed on the CGR30-P engine display was only fixed for the GNS530 and all G5 panels are now fixed.

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Sierra C24R V1.1.0 
09-27-2024
=================

Updates:
1. Gear down has more drag.
2. Flight dynamics update. Important airframe data was missing from the master flight_model.cfg file.
3. Directional Gyro was removed from the electrical system.
4. Idle rpm is now slightly under 700 RPM.
5. G-force velocity and crash velocity was updated.

Bugs:
1. Horsepower percent fixed on the CGR30-P engine display.
2. Turning the instrument lights to off the CGR30 engine units no longer displayed. Fixed.
3. Resolved the conflict between the avionics master switch and the avionics circuit breaker switch. 
4. Removed the small white (sugar cube) mesh box between the front seats.
5. Resolved low idle voltage from 10v to 12.2V.
6. The GTN650 and GTN650Xi knobs and buttons are fixed.

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