Gear retraction timing in AI aircraft

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John Young
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Gear retraction timing in AI aircraft

Post by John Young »

I've been having great fun building AI aircraft over the past couple of months as a change from scenery design. There's much to learn but I am getting there. I have a question though, that I would dearly love the answer to, particularly if there is a workable solution. With a flyable aircraft, the user obviously decides when to retract the undercarriage with a key or button push. With AI aircraft, gear retraction often takes place a long time after take-off. By the time that happens, My LOD_30 has kicked in and that has no undercarriage in the model so the gear just disappears instantaneously. For an aircraft like a Spitfire or a Lightning scrambling, that very dramatic animation is lost. Is there anything that can be added to the aircraft.cfg, or anywhere else please, that would cause the gear to retract at a much earlier stage and thus make use of the animation?

Thanks in anticipation,
John
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MIKE JG
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Re: Gear retraction timing in AI aircraft

Post by MIKE JG »

AFAIK, the retraction/extension sequence is contolled via the FS9 AI engine. You can alter the time it takes for the animation to run but that's all that I know how to change.
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John Young
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Re: Gear retraction timing in AI aircraft

Post by John Young »

Thanks Mike. Yes I know how to change the duration or the order of leg retraction in the aircraft.cfg file, but it's the time when the retraction starts that I would like to influence. As you say, that's probably a function of the AI engine and presumably is not accessible for change, particularly for individual aircraft.

John
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Dark Morelia
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Re: Gear retraction timing in AI aircraft

Post by Dark Morelia »

You could certainly build it into a model using xml to control the animation, not sure what you'd use as a trigger though.
Radio altitude? flap percentage? airspeed? or a combination.

So it's possible, but I doubt it'd be worth the effort.
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nickblack423
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Re: Gear retraction timing in AI aircraft

Post by nickblack423 »

John, you could certainly xml code the gear as Drew said. You could link it to speed or height above ground level, so that once the aircraft reaches a certain height the gear wil come up, however you would probably want the gear to come up very quickly after take off but still come down a long time before landing so a speed link would probably be better.

The only thing I can suggest is to actually add a simple gear model to your LOD_30 that still retracts. This way you will still get the effect you desire. It only needs to be a few polys.

Nick
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John Young
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Re: Gear retraction timing in AI aircraft

Post by John Young »

Thanks for the XML suggestion. I think Nick's solution is probably the easiest to achieve so a simple gear retraction in LOD_30 it shall be.
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