What's new.

New

• Audible turbine ignition. You now hear the distinctive igniter clicks right at the beginning of each engine start, then the clear light-up as combustion catches.
• Complete independent per-engine spool-up. From there each engine plays its full turbine spool-up. Start or shut down either engine on its own and hear each one spool up completely.
• Matched cold-start layer. Engine 1's cold-start cranking layer now matches Engine 2 for consistent realism on both sides.

New

• Interruptible startup sequence. The turbine spool-up can now be aborted at any moment by switching the starter off, matching real EC135 behaviour. No more committed startup once you flip the switch.
• Fully independent dual engines. Engine 1 and Engine 2 are now completely separated. Asymmetric start, asymmetric shutdown, single-engine taxi: each engine plays its own sound layer.

Installer

• New installer with editable Community-folder path picker and improved auto-detection.
• Clean Apps and Features integration for proper Windows uninstall.

Fixed

• Turbine startup sound now plays reliably from cold start. Under certain audio configurations the FWX startup sound in v1.44 could fail to engage, causing MSFS to fall back to the default sound.
• AI helicopters (AI Traffic) now correctly receive the FWX sounds.

Improved

• Significantly leaner installation (278 MB instead of 433 MB) and faster installer.

New

• Installer now shows an explicit Package Reorder dialog. On some Steam installations the FWX package has to be loaded above the stock EC135 package, and the dialog now explains this step so it can't be missed.
• Updated product description and requirements mention the load-order note up front.

Fixes

• Addressed the load-order case reported by some Steam users where the FWX audio was not audible after installation.

New

• Full cockpit and exterior turbine audio for the EC135 in MSFS 2024.
• 13 active engine WAVs, 20 non-engine WAVs, custom startup sequence.
• Tuned pitch variation for a smoother, more realistic turbine response under torque changes.
• ButtKicker-safe, no internal cockpit bass rumble.

Installer

• New installer with editable Community-folder path picker and improved auto-detection.
• Clean Apps and Features integration for proper Windows uninstall.

Unchanged

• Sound and impulse characteristics identical to v1.52. This release only refines the install experience.

Maintenance

• Maintenance release. Minor internal adjustment, no functional changes compared to v1.51.

New

• Auto-close: the Haptic Engine now exits automatically when MSFS 2024 is closed. No more background processes after you quit the sim.
• Stability and performance refinements across rotor reads and device output.

New

• Rotor impulse generation in sync with the helicopter.
• Reliable pause handling in MSFS 2024.
• Starts automatically when MSFS launches.
• GUI with live pulse strength, rattle threshold and device dropdown.
• Works with any 4-blade rotor helicopter in MSFS 2024, not restricted to the EC135.

Contents

• Turbine Sound Enhancement Mod v1.52 (complete, independent per-engine turbine spool-up on start)
• Haptic Bass Shaker Mod v1.53 (sound and impulse characteristics unchanged)
• One-click installer with editable Community-folder path picker, separate uninstall entries for each component

Contents

• Turbine Sound Enhancement Mod v1.49 (interruptible startup sequence, fully independent dual engines)
• Haptic Bass Shaker Mod v1.53 (new installer, sound and impulse characteristics unchanged)
• New installer with editable Community-folder path picker, improved auto-detection, clean Apps and Features integration, separate uninstall entries for each component

Contents

• Turbine Sound Enhancement Mod v1.46 (startup sound reliable on all systems, AI helicopter sounds correctly assigned, leaner installation)
• Haptic Bass Shaker Mod v1.52 (maintenance release, no functional changes)
• Combined installer with separate uninstall entries for each component

Contents

• Turbine Sound Enhancement Mod v1.44 (with Package Reorder dialog)
• Haptic Bass Shaker Mod v1.51 (with auto-close and stability refinements)
• Combined installer with separate uninstall entries for each component

New

• First bundled installer combining Turbine Sound Enhancement Mod v1.41 and Haptic Engine v1.42.