Current Version:
For Microsoft Flight Simulator
CowanSim R66 v3.5 (2/13/26)

Compatibility Notice:

This product is designed for MSFS2020 but is compatible with MSFS2024. If starting cold & dark (engine/s off), use Shift + C to enter the cockpit on PC and if you’re on Xbox use LB + B. The EFB (tablet) can be used to adjust options, though some overlap issues persist. An official version tailored specifically for MSFS2024 will be released following the completion of its development. The MSFS2024 version will include new features exclusive to the 2024 release.

🚨 ATTENTION PMS GTN650/750 USERS (PC) 🚨

• 👉 DELETE the OLD PMS CowanSim packages from your Community folder (if used)
• 👉 INSTALL the NEW PMS CowanSim packages (required)
• 👉 (already included in your product download)
• ❌ Old PMS CowanSim packages = REMOVE THEM
• ✅ New PMS CowanSim packages = USE THESE

CowanSim R66 – Fly Light. Fly Smart. Fly Anywhere.

Experience next-generation helicopter realism in Microsoft Flight Simulator with the CowanSim R66, a light turbine utility helicopter built for versatility, agility, and immersion. From private flying to utility missions, the R66 delivers the perfect balance of power and control.

The CowanSim R66 is the result of thousands of hours of development, pilot feedback, and refined coding. Every system, animation, and performance detail was crafted to bring this helicopter to life with realism and reliability in mind. This latest version introduces the new SAS Autopilot System for reduced workload, smoother handling, and precise control in every phase of flight.

For more detailed guidance, please consult the included manual, which covers hardware bindings and other essential instructions. The manual is located in the package folder, and an online version with checklists is also available for convenience, including for Xbox users: https://cowansim.com/manuals-checklists/

Advanced SAS Autopilot System

Take full advantage of the newly developed Stability Augmentation System (SAS) and integrated autopilot modes, designed to reduce pilot workload and improve handling.

• – Force Trim Release (FTR) and trim hat support
• – Attitude hold with proportional trim adjustment
• – Heading hold (HDG)
• – Navigation modes (VLOC and GPS)
• – Speed hold (SPD)
• – Altitude hold (ALT)
• – Vertical mode (VRT) for ILS and GPS approaches
• – Autopilot disconnect for quick reversion to SAS

Interactive Cabin and Features

• – Pilot and copilot visibility toggle
• – Passenger visibility toggle
• – Cargo options: baggage and crates
• – Removable doors and optional accessories
• – Persistence system saves your loadout, weight and balance, and options
• – Realistic rotor visuals with blur effects
• – Side storage basket
• – Animated passengers
• – In-cockpit interactive checklist

Realistic Flight and Systems Simulation

• – Cold-and-dark or ready-to-fly starts
• – Accurate startup and shutdown sequences
• – Realistic systems and procedures
• – Functional circuit breakers
• – Bindable throttle control
• – Fully compatible with MSFS hardware bindings
• – Dynamic weight and balance options
• – In-sim checklist and detailed manual included
• – Solo controls optional
• – Emergency floats
• – Optional upper window
• – Individually removable doors
• – Optional windshield visor
• – Working A/C

Audio and Immersion

• – Wwise fully dynamic sound pack
• – Rotor slap, blade speed, and environmental effects
• – Spatial 3D sound for cockpit and external views
• – Vibration and environmental immersion
• – Working rain and wiper effects
• – Exhaust blur FX
• – Night lighting throughout cockpit and cabin

Performance and Visual Detail

• – 51 included paint jobs (liveries)
• – High-detail 4K PBR textures
• – Custom 3D instruments
• – 3 panel variants (G530, GTN, GX3, Analog)
• – PMS GTN 650/750 integration
• – TDS GTNXi 650/750 integration
• – VR-ready for maximum immersion
• – Professional paint kit in Photoshop and GIMP formats
• – Blender model provided for 3D artists
• – Accurate 3D modeling
• – Detailed night lighting
• – Free future updates

The CowanSim R66 brings the agility of a light turbine helicopter into Microsoft Flight Simulator with new SAS autopilot functionality, handcrafted detail, and refined performance. Designed for pilots who demand realism, flexibility, and precision.

Built with passion. Tuned for realism. Ready for your mission.