Simviation Forum - Perpetual Afterburner

Jan 9^th, 2009 at 2:48pm

Bubblehead Offline
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I've got a couple of aircraft, the F4 Phantom in particular which has its afterburner on even when the aircraft is idling ready for take off. On full throttle it is also on and when drop down on the throttle, the burner is still on full blast. Is there any adjustment I can make in the aircraft.cfg that will make the after burner respond to the throttle position?

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Reply #1 - Jan 9^th, 2009 at 7:34pm

Daube Offline
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This usually happens with planes that have the aftrburner as a light effect.
Some other aircrafts have the afterburners into gauges. The best for you would be to find an aircraft like this, look into its aircraft.cfg to check what gauges are handling the afterburners, and copy this stuff into the aricraft.cfg of the planes you want.
For example, if I remember right, the F-5 from Tim Conrad has such a gauge afterburner.... in fact there are two gauges, one that show the afterburner, and one that tells when the afterburner should work or not. The names of those gauges are quite explicit, you will recognize them very easilly.

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Reply #2 - Jan 10^th, 2009 at 9:05am

Meck Offline
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Maybe ShaneG will pop up here and help you out?! If not have a search for similar threads here in the FSX section - Shane has made some pretty good explanations about that topic 2 or 3 months ago... Just thinking of the Airbus with burnerflames Wink

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Reply #3 - Jan 10^th, 2009 at 9:33am

idahosurge Offline
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I had the same problem with the FSX update of KO's F-16 and I found out that one of the light switches would turn the afterburner off. Try playing with the light switches and see if you can get it off.

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Reply #4 - Jan 11^th, 2009 at 11:50pm

RacingLad Offline
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I´ve got the same problem with Bear Studios MiG-17 where the afterburner lights when you open the thottle above 35%. I sent them an e-mail about it and they said that it had to do with some "light effect" thingy and that he intended to fix it in an upcoming patch. It has quite a few bugs but still a good addon. Hopefully, all the bugs will be squashed when patched. Wink

But if I can fix it myself I would!

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Reply #5 - Jan 12^th, 2009 at 1:37am

MeekRN Offline
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cant you just get rid of that guage? and get rid of the afterburner effect.

I personally like some of the F14 guages, i just dont have the guts to try to use them on other planes. like these.
this one is radar that shows other traffic and airports and nav aids

this one is a coll nav and com panel

this is a nearest airport list

once you choose an airport it gives you info on it quickly

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Reply #6 - Jan 16^th, 2009 at 12:10am

Bubblehead Offline
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I'm the originator of this thread. My F14 and my "Grizzly" planes both have good working afterburners, that is, it starts off with the burner off and as you increase throttle, the "oriffice" and the "flame comes on. My F4 Phantom however shows the burner flame even while taxiing for take off.

I printed the burner sections (light.11-18) of the three planes and compared. I then replaced the F4 section with that of the F14. The result was that flame disappeared altogether. I was uable to find a "[Gauge] section in the aircraft.cfg. Is there any other area in the fsx.cfg or aircraft.cfg which contain commands pertaining to the afterburner?

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Reply #7 - Jan 16^th, 2009 at 3:50am

CAFedm Offline
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Hope this might be of some help...the Grizzly is my project, how it was made to work was to employ a gauge (courtesy of a very generous & talented individual) that controls the afterburner via throttle position. The gauge was compiled with the model (e.g., using FS2004's MakeMDL) therefore no reference to it will be found by looking at the aircraft files. There are similar type gauges available, the one here:

http://www.simviation.com/cgi-bin/syb.cgi?section=military&file=AB_F16_.zip

might do the trick...the aircraft model need not be recompiled, but essentially what needs editing are two things. First, the panel.cfg, where a new gauge entry is added and uses the gauge's name. This is how the gauge is recognized and works with that aircraft. Second, the visible afterburner effects themselves are still called for in the aircraft.cfg, within the [lights] section. Reason the swapped F-14 effects might not have shown on the Phantom was because the new effects may not have been renamed in the [lights] section (e.g., the original may have used effects named "flankerburner" while the other aircraft uses effects named "F-16_flame"). Of course, the control gauge and effects files also need adding to their appropriate folders in FS. The instructions obviously will be more specific but that's one way to add a throttle-able afterburner effect. Hope it all works out for you!

Brian

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Reply #8 - Jan 16^th, 2009 at 6:38am

ShaneG Offline
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Meck wrote on Jan 10^th, 2009 at 9:05am:

Maybe ShaneG will pop up here and help you out?! If not have a search for similar threads here in the FSX section - Shane has made some pretty good explanations about that topic 2 or 3 months ago... Just thinking of the Airbus with burnerflames Wink

I had to go WAY back to find those threads. Grin

Do you have a link to the plane? It would be easier if I just add them for you, or if this is the one you have: F-4B and F-4E Package

http://simviation.com/simviation/static.php?ID=64&page=14

Then see this thread here: http://www.simviation.com/cgi-bin/yabb2/YaBB.pl?num=1219953950

With the one I've listed here, simply backup the original aircraft.cfg, and panel.cfg and use the ones I have in that thread. Wink

« Last Edit: Jan 16^th, 2009 at 8:25am by ShaneG »

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Reply #9 - Jan 17^th, 2009 at 1:17am

RacingLad Offline
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ShaneG wrote on Jan 16^th, 2009 at 6:38am:

Meck wrote on Jan 10^th, 2009 at 9:05am:

Maybe ShaneG will pop up here and help you out?! If not have a search for similar threads here in the FSX section - Shane has made some pretty good explanations about that topic 2 or 3 months ago... Just thinking of the Airbus with burnerflames Wink

I had to go WAY back to find those threads. Grin

Do you have a link to the plane? It would be easier if I just add them for you, or if this is the one you have: F-4B and F-4E Package

http://simviation.com/simviation/static.php?ID=64&page=14

Then see this thread here: http://www.simviation.com/cgi-bin/yabb2/YaBB.pl?num=1219953950

With the one I've listed here, simply backup the original aircraft.cfg, and panel.cfg and use the ones I have in that thread. Wink

Hello Shane...

Anything you can do for Bear Studios MiG-17? Same problem as above except the burner lights up when 35% throttle is applied.

Also the cockpit takes like 60 secs. to close even though I hear the canopy closing and that green band with "doors closed" message appears.

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Reply #10 - Jan 17^th, 2009 at 9:37am

ShaneG Offline
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For the Mig-17, look for this section in the aircraft.cfg :

[TurbineEngineData]
fuel_flow_gain    = 0.006       //Gain on fuel flow
inlet_area    = 4.2895    //Square Feet, engine nacelle inlet area
rated_N2_rpm = 16728       //RPM, second stage compressor rated value
static_thrust       = 11000       //Lbs, max rated static thrust at Sea Level
afterburner_available = 6 //Afterburner stages available?
afterburner_throttle_threshold = 0.80       //Percent of throttle range where a/b begins Play with this number to get it where you want it. Wink

And for the exit, look for this section:

[exits]
number_of_exits=1
exit_rate.0=1.0 ;Percent per second Adjust this number to get what you are after. Wink

Is this a payware or freeware airplane? Huh

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Reply #11 - Jan 17^th, 2009 at 4:05pm

RacingLad Offline
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ShaneG wrote on Jan 17^th, 2009 at 9:37am:

For the Mig-17, look for this section in the aircraft.cfg :

[TurbineEngineData]
fuel_flow_gain = 0.006 //Gain on fuel flow
inlet_area = 4.2895 //Square Feet, engine nacelle inlet area
rated_N2_rpm = 16728 //RPM, second stage compressor rated value
static_thrust = 11000 //Lbs, max rated static thrust at Sea Level
afterburner_available = 6 //Afterburner stages available?
afterburner_throttle_threshold = 0.80 //Percent of throttle range where a/b begins Play with this number to get it where you want it. Wink

And for the exit, look for this section:

[exits]
number_of_exits=1
exit_rate.0=1.0 ;Percent per second Adjust this number to get what you are after. Wink

Is this a payware or freeware airplane? Huh

It´s payware. Quite pricey and it has quite a few bugs... No word out for a patch.

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