Changelogs
Update - v3.3 on February 17, 2026
-Updated SAS/AP WASM module
-Updated CowanSim PMS package (replacement required)
-Now supports NAV-mode autopilot integration with G3X Touch
Note: G3X FPL to Internal - CDI Source to GPS (click CDI to change)
-Fixed rotor lateral and longitudinal trim (2024)
-Main panel option persistence added (saved from last flight)
-Added option to toggle Night Vision Goggles (2024 Key: Z)
-Moved weight stations for option selection in tablet (2024)
-Corrected several tooltips displaying inaccurate information
-Added panel colliders to all panels for improved VR interaction and immersion
-Fixed issues starting on oil rigs (2024 FLT file added)
-Fixed search light emissive tied to panel potentiometer
-Door interaction and blade slap sounds fixed
-Fixed cyclic collider for VR controllers
-Lowered search light power consumption
Update - v3.2 on October 06, 2025
-Enhanced SAS/AP and Force Trim system
-Autopilot modes now require SAS to be engaged
-HeloSAS updated to use trim inputs instead of direct actuators, matching real-world operation
-Rewritten SAS/AP manual for improved clarity
-Fixed issue causing NAV mode to randomly disengage
-Fixed doors remaining open in multiplayer (updated variable names)
-Rotor animation refined for smoother performance
-Fixed skid mirror not hiding when weight removed
Update - v3.1 on September 27, 2025
- Manual updated
- Updated in sim checklist
- PMS package README updated
- SAS/AP system enhancements
- Fixed NAV/GPS mode selector
- Fixed TO/FROM flags on the HSI
- Fixed radar altimeter not working
- Fixed FLT files for starting in flight
- Fixed transponder and ADF power starting cold and dark
- Doors removed from weight calculations for cross-simulator and multiplayer compatibility (add/remove click spots remain functional)
- Fixed ELT and other decal-based materials flickering
- Adjusted weight station positions for installed options
- ATTENTION PMS GTN650/750 USERS (PC)
- The PMS GTN requires an extra package to be installed into the community folder.
- CowanSim PMS GTN650/750 package can be found in the main product folder.
- PMS GTN 650/750 base package can be found at https://pms50.com/msfs/
Update - v3.0 on September 19, 2025
-Upgraded G3X vertical units to the G3X Touch
-Added CowanSim Advanced SAS Autopilot System
-Added SAS Autopilot System Manual to package
-Added Force Trim Release (FTR) and trim hat support
-Improved floats with realistic buoyancy and floating behavior
-Corrected VR loading position (map reset for proper centering)
-Resolved glass/window flickering issue
-Removed doors from weight calculations for cross-simulator and multiplayer compatibility (add/remove click spots remain)
-Updated in sim checklist
-Updated weight positions for options
-Fixed search light draining power
-Various bug fixes and performance improvements
-Using the PMS GTN750/650 requires an extra package to be installed into the community folder.
-PMS GTN650/750 packages are in the main product folder and at https://pms50.com/msfs/aircrafts/
Update - v2.1 on June 01, 2024
MSFS 206B3 v2.1 – 5/30/24
_________________________
-Glass panel G3X screens are brighter and can be adjusted with the “INST. LIGHTS” potentiometer.
-Rotor blade twitching when stopped fixed.
-SU15 governor code requirements updated to fix any governor issues.
-Added VR to camera and minor camera default view changes.
-Fixed small bugs with the weight and balance options.
-Decreased the moment of traverse inertia to help with the sluggish feeling.
-Fixed rain on instrument glass.
-Lowered the sounds volume.
Update - v1.0.3 on May 02, 2023
https://cowansim.com/changelog-msfs-206b3
Update - 1.02 on January 17, 2023
UPDATE: 1-16-23
-ADF needle is now working in GPS mode
-Beacon light fixed and some other lighting tweaks
-Radar altimeter fixed: tone and light when decision height is reached and fully functional
-Now able to hide the headsets individually
-Headset roll animations
-Added option for female pilot: Select through “MSFS General Options” then “MISC”. Select “Pilot 2” for female OR “Pilot 1” for male.
-New copilot model added. Activate in “Weight and Balance” settings by adding 100+ to copilot weight.
-Added down wash effects: dust/sand/dirt/water
-Several flight model tweaks
-HSI slave/free flux gate switch that was missing was added along with full functionality and indicator animation.
-Smoothed out jagged edges on modeling: center window column, switches, door seals and frames, windows and many other parts.
-Added missing sounds for the G430 and other small things
-New camera settings provided by BelGeode (Drew Bolton) - Thanks!
-Updated several textures and fine details with PBR
-Got the trim ball working but still a little off. For some reason the default code does not like helicopters much.
-Known issues:
-Still need needle split for RPM N2 and Nr
-When full sun and at certain angles pixelated shadows may appear
-TOT not simulating correctly. Slow rise on start and incorrect values when running.
-Hardware throttle impossible to turn of governor after triggered, this prevents rolling down the throttle with hardware after the governor kicks in. You have to use a mouse or VR controller by rolling to max and then rolling down. This is top of the list to get fixed with the next update. Thankfully we don't fly with the throttle in helicopters, that is what the governor is for. But this is still important to us and will be fixed immediately after a solution is found.
Thank you for the support,
Josh
CowanSim.com
-------------------------
UPDATE: 12-27-22
-Several small fixes
-Fixed FPS issue with LED lights
-Fixed PBR on 13 liveries
-------------------------
Initial Release 12-23-22
Update - 1.0.2 on January 17, 2023
UPDATE: 1-16-23
-ADF needle is now working in GPS mode
-Beacon light fixed and some other lighting tweaks
-Radar altimeter fixed: tone and light when decision height is reached and fully functional
-Now able to hide the headsets individually
-Headset roll animations
-Added option for female pilot: Select through “MSFS General Options” then “MISC”. Select “Pilot 2” for female OR “Pilot 1” for male.
-New copilot model added. Activate in “Weight and Balance” settings by adding 100+ to copilot weight.
-Added down wash effects: dust/sand/dirt/water
-Several flight model tweaks
-HSI slave/free flux gate switch that was missing was added along with full functionality and indicator animation.
-Smoothed out jagged edges on modeling: center window column, switches, door seals and frames, windows and many other parts.
-Added missing sounds for the G430 and other small things
-New camera settings provided by BelGeode (Drew Bolton) - Thanks!
-Updated several textures and fine details with PBR
-Got the trim ball working but still a little off. For some reason the default code does not like helicopters much.
-Known issues:
-Still need needle split for RPM N2 and Nr
-When full sun and at certain angles pixelated shadows may appear
-TOT not simulating correctly. Slow rise on start and incorrect values when running.
-Hardware throttle impossible to turn of governor after triggered, this prevents rolling down the throttle with hardware after the governor kicks in. You have to use a mouse or VR controller by rolling to max and then rolling down. This is top of the list to get fixed with the next update. Thankfully we don't fly with the throttle in helicopters, that is what the governor is for. But this is still important to us and will be fixed immediately after a solution is found.
Thank you for the support,
Josh
CowanSim.com
-------------------------
UPDATE: 12-27-22
-Several small fixes
-Fixed FPS issue with LED lights
-Fixed PBR on 13 liveries
-------------------------
Initial Release 12-23-22
Initial File Release on January 04, 2023
End User License Agreements
CowanSim 206B3 for MSFS is licensed to you by Cowan Simulation. By purchasing this item, you agree to their End User License Agreement.
Cowan Simulation LLC – End User License Agreement (EULA)
Product: CowanSim 206B3 Effective Date: July 31, 2025
1. Grant of License
This End User License Agreement (“Agreement”) is a legal contract between you (“End User”) and Cowan Simulation LLC (“Licensor”) for the CowanSim 206B3 software product, including all related files, documentation, models, textures, sounds, and data (“Product”).
• You are granted a non-exclusive, non-transferable, non-sublicensable, limited license to install and use the Product solely for personal, non-commercial entertainment within Microsoft Flight Simulator.
• All rights not expressly granted are reserved by Cowan Simulation LLC.
2. Ownership
The Product is licensed, not sold. All intellectual property rights—including, but not limited to, copyright, trademarks, trade dress, and proprietary technology—remain the sole property of Cowan Simulation LLC.
3. Restrictions
You may not: a. Copy, distribute, or reproduce the Product, in whole or in part, except for personal backup purposes. b. Resell, rent, lease, loan, sublicense, or otherwise make the Product available to any third party. c. Modify, reverse engineer, decompile, disassemble, or create derivative works from the Product. d. Extract, convert, or use any part of the Product outside of Microsoft Flight Simulator. e. Circumvent, remove, or tamper with any copy protection, encryption, or digital rights management (DRM) features.
f. Upload, share, or otherwise distribute the Product, in any form, to file-sharing sites, marketplaces, or any distribution platform without prior written permission from Cowan Simulation LLC.
4. Updates & Support
Cowan Simulation LLC may, at its sole discretion, provide updates, bug fixes, or improvements. Updates are subject to the terms of this Agreement. Technical support is provided on an as-available basis.
5. Termination
This license is effective until terminated. Cowan Simulation LLC may terminate this Agreement immediately if you fail to comply with its terms. Upon termination, you must destroy all copies of the Product in your possession.
6. Disclaimer of Warranties
The Product is provided “AS IS” without warranty of any kind, express or implied, including but not limited to merchantability, fitness for a particular purpose, or non-infringement. You use the Product entirely at your own risk.
7. Limitation of Liability
In no event shall Cowan Simulation LLC be liable for any damages, including but not limited to loss of data, loss of profits, or business interruption, arising out of the use or inability to use the Product, even if Cowan Simulation LLC has been advised of the possibility of such damages.
8. Governing Law
This Agreement shall be governed by and construed in accordance with the laws of the State of Illinois, United States of America, without regard to conflict of laws principles.
9. Entire Agreement
This Agreement constitutes the entire agreement between you and Cowan Simulation LLC regarding the Product and supersedes all prior or contemporaneous understandings.
By installing or using the CowanSim 206B3, you acknowledge that you have read, understood, and agree to be bound by this Agreement.
© 2025 Cowan Simulation LLC. All Rights Reserved.
2 Reviews