FSX / P3D Patch / Update

FSX Ivchenko AI-25TL Engine Smoke Effect

Ivchenko AI-25TL engine smoke effect recreates the characteristic exhaust haze seen on pre-1985 Progress-built powerplants, appearing progressively from about 80% N1 for a more authentic climb and cruise look in FSX. Version 3.0 refines RPM-dependent plume behavior with more realistic exhaust-gas physics and smoother visual transitions.

No ratings yet Rate 55 downloads since 2016 637.52 KB Scanned clean · Jul 2026 Added
Flight Simulator X Prepar3D
Patch — installs over the original

From the Ukrainian company "Ivchenko Progress" until 1985 produced AI-25TL engines began to smoke off ~ 80% N1 performance. Since 1985 have been manufactured optimized engines without notable exhaust smoke. With this rpm dependent effect, you can go back to the origins of this engine. This version (v3.0) was optimized for a physical behavior of the exhaust gases closer to the reality. Installation instructions inside. By Uwe Stengel.

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Free for all simmers · 637.52 KB · Scanned clean Jul 2026

File information

Filename
l-39exhaust_v3.zip
File size
637.52 KB
Added
Virus scan
Clean ClamAV · Jul 2026
Access
Freeware
Content rating
Everyone

Download speed: Free tier is capped at 0.5 Mbps. PRO members download at full line speed.

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How to install this mod

FSX / P3D Patch / Update

  1. Extract the downloaded archive

    Use 7-Zip (free) or WinRAR to extract the ZIP to a temporary folder. Don't install while still zipped — the simulator can't read inside ZIP files.

  2. Place files per the readme

    Most FSX add-ons go into one of: SimObjects\Airplanes\, Addon Scenery\, Effects\, or Gauges\.

  3. Always read the included readme

    Every mod ships with a readme.txt or README file. It tells you exactly where files go, what dependencies are needed, and any quirks specific to this add-on.
Still stuck? The readme included with the file is the authoritative source for this specific mod. Visit our Flight School tutorials or ask in our Q&A forum.

What’s inside this archive

The archive l-39exhaust_v3.zip has 16 files and directories contained within it.

File Contents

This list displays the first 500 files in the package. If the package has more, you will need to download it to view them.

Filename/Directory File Date File Size
Effects08.06.140 B
fx_engsmoke_l39.fx08.06.141.48 kB
fild_id.diz08.06.14525 B
l-39exhaust_v3.gif08.02.145.94 kB
Lotussim_L-39C_exhaust_00.jpg08.02.1491.04 kB
Lotussim_L-39C_exhaust_01.jpg08.02.14178.30 kB
Lotussim_L-39C_exhaust_02.jpg08.02.14185.65 kB
Lotussim_L-39C_exhaust_03.jpg08.02.14275.47 kB
readme.txt08.06.143.56 kB
SimObjects08.06.140 B
Airplanes08.06.140 B
Lotus L-3908.06.140 B
Panel08.06.140 B
LotusL39Cexhaust.cab08.02.14699 B
flyawaysimulation.txt10.29.13959 B
Go to Fly Away Simulation.url01.22.1652 B

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