Details

Published by

FWX AVIATION
Sold by

FWX AVIATION
Size
326.54MB
Available since
2026-03-27
Version
2.0.12
PID
21039

FWX EC135 Real Turbine Sound Mod: the sound pack that completely replaces the stock EC135 sounds in Microsoft Flight Simulator 2024

The EC135 finally sounds like a turbine. This mod replaces the aircraft sound completely, inside and out, with recordings of a real EC135.

The stock EC135 sounds are flat and characterless. After the swap you hear two turbines that spool up separately, shut down separately, and let you abort a start.

What is this sound pack? A sound pack that completely replaces the stock EC135 sounds, inside and out, with recordings of a real EC135. It changes nothing about flight behavior and nothing about the visuals: the simulator flight model and the look of the aircraft stay untouched. It affects the EC135 only, every other helicopter stays untouched. Uninstalling restores the stock sounds.

Two turbines that do not run in lockstep

The engines are separate. You notice it immediately, because the two turbines do not run alike.

Uneven start: the second engine does not spool up like the first
Uneven shutdown: each turbine runs down on its own
Single-engine taxi, audible as one turbine running alone

Abort the spool-up, like on the real aircraft

The start sequence can be aborted. You can stop the spool-up at any point, and the sound follows you.

Seamless from the starter into the running turbine, no gaps, no cuts
Smooth load changes instead of audible pitch jumps

Power you can hear

Rotor speed stays constant, the aircraft takes care of that itself. So what you hear is not the rotor speed but the work the turbines are doing: when the flight calls for more power, they work harder to hold that speed, and that is exactly what you hear at the very same moment. When less power is needed, they audibly ease off while the rotor speed stays up.

More power: the turbines audibly dig in, the rotor speed stays the same
Less power: the sound falls back just as clearly, the rotor speed stays up
Climb, hover, descent: every load state sounds different, because the turbines have a different amount of work to do
Turbine sound across every phase of flight: cold start, spool-up, idle, flight, shutdown

From the outside: the Fenestron and two turbines

The Fenestron, the shrouded tail rotor of the EC135, is what makes it recognizable. That exact sound is brought out in the exterior mix, not just carried along.

The unmistakable tone of the Fenestron on a flyby and in the hover
The characteristic twin-turbine whine
Rotor downwash, flyby and hover fully reworked
Dedicated sound files for every exterior view

VR compatible

The sound works no matter which view you fly in: in the cockpit, in the exterior view and with a VR headset on.

Reviewed by SimFlight, Threshold and MSFS Addons.

What it cannot do

It affects the EC135 only, every other helicopter stays untouched
It changes nothing about flight behavior and nothing about the visuals
It produces no vibration, that is what the FWX Rotor Blade Haptic is for

Works with your other add-ons

Compatible with ChasePlane and FSRealistic
No impact on frame rate
Works alongside the FWX Rotor Blade Haptic without hindering it

Installation and uninstallation

Click-through installer, pick the folder, done
You can uninstall in two ways: through our own FWX application or through the Windows program list
Uninstalling restores the stock sounds

Note: package order in the package library

It can happen that the package order has to be set by hand for the sound to take effect. This refers to the settings in the simulator under the package library. The installer walks you through it with a confirmation dialog. If you set it by hand, do this once:

Open General Options, Advanced Options, Package Order Tool
Enable the tool and clear the "Scenery packages only" checkbox
Search for "135"
Move the FWX Sound Pack below the Nemeth Design EC135
Restart the simulator

Updates

Free updates, new sound content at no extra charge.

Also available as a bundle

More information: finnwestx1.com

Requirements

- Microsoft Flight Simulator 2024 (PC, Steam or MS Store)
- Windows 11
- Nemeth Design EC135 (Local Legend 21, free with MSFS 2024)
- One-time Package Load Order setting, the installer guides you through it

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