Is there a freebie vapour trail add-on anywhere, please ??

[TransportSteve]

Hello fellow flightsimmers,

The one think I noticed sadly lacking in my FSX is a vapour trail for all of my larger aircraft. Does anyone know if there is such a thing available anywhere, please, preferably freeware ??

Thanks.

Transport Steve.

[Radio Homer]

this normally happens to me when im at about 19000 + sometimes works better when its cold or warm but 9 times out of 10 i always get the trails when im higher than 19000

[Boikat]

The vapor trail seems to be added by the sim during flight, depending on altitude and weather conditions. With "clear skies" it's around 28.000.  If you want a constant vapr trail, you can create a [smokesystem] entry in the aircraft.cfg file, and use the stock smoke effect, and you can have a "vapor trail" whenever you toggle the "i" key.

For the default 737-800, the smoke entry would look like this:

[SMOKESYSTEM]
smoke.0=-10.00, -17.50, -2.0, fx_contrail_l
smoke.1=-10.00,  17.50, -2.0, fx_contrail_l


Unless you lost your "fx_contrail_l.fx" from your effects folder, that should work.  Just press the "i" key when you want the contrails.

[Jake Bourdon]

Hello fellow flightsimmers,

The one think I noticed sadly lacking in my FSX is a vapour trail for all of my larger aircraft. Does anyone know if there is such a thing available anywhere, please, preferably freeware ??

Thanks.

Transport Steve.

Not that I know of. sorry.

-Jake

[Daube]

Aren't the trails supposed to appear automatically above a certain altitude ?
I believe all aircrafts have it...

[dave3cu]

Steve,

Contrails are a default feature (effect) on all turbine engines. As mentioned, default contrails should appear on all turbine engines somewhere around 30000', depending on weather conditions

From the FSX SDK re: aircraft.cfg entries

[generalenginedata]

max_contrail_temperature=

Ambient temperature, in celsius, in which engine vapor contrails will turn on. The default value is about -39 degrees celsius for turbine engines. For piston engines, the contrail effect is turned off unless a temperature value is set here.

Adding or editing the entry in the aircraft.cfg file with a higher temp. will cause the contrails to appear at lower altitude.

I suppose you could also create a custom weather theme with a -40C temperature layer starting at a lower altitude.

[TransportSteve]

Many thanks guys, especially, to Boikat and dave3cu for your input, I will study this information very carefully and see if I can make it work, I'm glad it's a default built-in programme.

Cheerz.  Transport Steve.