robcap, as far as I can tell launch assistance is not documented.
I worked launch assist and tailhook settings by trial and error using 2 lights to position each of them, basically launch_bar_pivot is the position of the attachment on the aircraft and is the same as for contact points and tailhook ie location fore and aft of CoG - left or right of CoG = always 0.0 in this case last set is above or bellow CoG.
launch_bar_lug = 10.423, 0.0, -7.42 is the position of the cat shuttle on the deck and is read the same way, not sure which aircraft settings you quoted but with those figures it looks like it could be one I did for a British style of launch with a strop rather than the close coupled US tow bar thing.
It is very much a trial and error, apply your setting get on the cat launch loc on your carrier in spot view, launch and watch how it behaves sometimes it will be somewhere near ok but very often some or all of the gear disappears through the deck or some other strange happening occurs.
Make your start with a set off a similar aircraft and work from there, sometimes it will work but not that often, if you are not bothered about watching in spot view it does not matter.
We did not put launch assist on the Swordfish as FSX launches it way past its max speed
[launch_assistance]
launch_bar_pivot = 5.433, 0.0, -2.522
launch_bar_lug = 10.423, 0.0, -7.42
Can you give me some info on what these numbers represent? I can find info on the tailhook in the SDK, but not on the launch_assistance.
Any help, or link, would be appreciated.
Thanks, Rob