Heya Marlin,
The sonic boom visual and audio effect is part of the Military Jet Carrier Effects package by Rob Barendregt and Doug Dawson available here at SimV:
http://www.simviation.com/cgi-bin/syb.cgi?section=military&file=RCBco-11.zipInstalling the visual and audio effects are very simple -- just place 2 gauge lines in your aircraft Panel.cfg file and copy/paste the RCBCO folder into your FS 2004 main Gauge folder. I figure that you already have Doug Dawson's FSUIPC.
The method that I use to locate X,Y,Z coordinates on an aircraft -- it's a manual process; but not too difficult --
First load your FS 2004 default flight and change the aircraft to the one you wish to work on. You don't have to run the engines -- just make sure that the aircraft is on battery power and that the Nav lights are on.
Next Save this as a new flight (I always call mine "Light Test"). Now minimize FS 2004 and Save a Backup of your Aircraft.cfg file just in case. Open the Aircraft.cfg file for the aircraft that you wish to work on using Windows Notepad. In the Aircraft.cfg [Lights] section add these lines at the top so that your list looks like this:
[LIGHTS]
//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing
//6=taxi light, 7=recognition light, 8=wing light, 9=logo light
// Type (X Axis) (Y Axis) (Z Axis)
light.0 =4, 25.00, 0.0, 1.58, fx_vclight
light.1 =3, -27.136, 0.0, 10.06, fx_navwhi
light.2 =3, 14.911, -5.088, 1.922, fx_navred
Now you have 3 columns lined up so that you can see that the first numbers are for the X Axis, second numbers are for the Y Axis, and the third set of numbers are for the Z Axis.
Red is a color that I can see most clearly so I add another Red Nav light at the end of the list in the Aircraft.cfg [Lights] section:
light.XX =3, 25.00, -6.0, 2.0, fx_navred
As before, light.XX= denotes the last number on your list of lights plus one. If you have light.13= as your last line on the [Lights] list then light.XX= light.14
This is what I call a "Marker Light". You can go back to FS 2004, view your aircraft and see the position of this light. To move this light around just minimize FS 2004 and change the numbers under the X,Y,Z columns in the [Lights] section of the Aircraft.cfg.
X Axis = Adding to the number under the X Axis column moves the "Marker Light" towards the nose of the aircraft -- subtracting moves the light towards the tail.
Y Axis = Adding to the number under the Y Axis column moves the "Marker Light" towards the right (starboard) and subtracting moves the light towards the left (Port side).
Z Axis = Adding to the number under the Z Axis column moves the "Marker Light" upwards and subtracting moves the light downwards.
Now comes the fun part. When you change the numbers under the [Lights] section just Maximize FS 2004 and view your aircraft -- Note that you will see the light appearing at the OLD coordinates. To view the light in your new updated position just Pull up the FS2004 main menu and select Flight --> Select Flight --> Light Test. This will reset the FS 2004 flight and now you can see the red light in the NEW position.
Once you get the light positioned where you want it, minimize FS 2004 and bring up the Aircraft.cfg file again.
Now make a note of the X,Y,Z coordinates of the red nav light you have been using for your "Marker Light".
These are the X,Y,Z coordinates! If you are finished then you can go back under the Aircraft.cfg [Lights] section and delete the red Nav light that you added earlier and Save the Aircraft.cfg file.
Now you can go back to FS 2004, change the saved flight to your default flight and then delete the "Light Test" saved flight.
This method is a bit tedious but it can be used to determine X,Y,Z coordinates for light placement (if you want to add more lights to your aircraft), Effects placements (if you want to add smoke and afterburner effects), as well as Weight and Balance (personally I like to modify the aircraft Weight and Balance so that it's more realistic).
As always if you need further help just post or IM me here at SimV!