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Is there a freebie vapour trail add-on anywhere, please ?? (Read 1318 times)

Mar 28^th, 2011 at 2:48pm

TransportSteve Offline
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UK

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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.

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Reply #1 - Mar 28^th, 2011 at 6:13pm

Radio Homer Offline
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B737-800!

Posts: 74

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

Here to help and get help!!!

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Reply #2 - Mar 28^th, 2011 at 8:25pm

Boikat Offline
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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.

"I reject your reality, and substitute my own" Adam Savage, Mythbusters

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Reply #3 - Mar 29^th, 2011 at 4:41pm

Jake Bourdon Offline
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You're Not Living.
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TransportSteve wrote on Mar 28^th, 2011 at 2:48pm:

Not that I know of. sorry.

-Jake

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Reply #4 - Mar 29^th, 2011 at 6:57pm

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

Got bloom ?
Got mountains ?
Got damage ?

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Reply #5 - Mar 29^th, 2011 at 7:02pm

dave3cu Offline
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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
Quote:

[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.

« Last Edit: Mar 29^th, 2011 at 11:28pm by dave3cu »

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation. Igor Sikorsky

I intend to live forever....so far, so good. Steven Wright

You know....you can just rip up a to-do list.

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Reply #6 - Apr 1^st, 2011 at 2:58pm

TransportSteve Offline
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I Like Flight Simulation!
UK

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Posts: 25

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.

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