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Post by flynby on May 14, 2010 16:17:52 GMT
Downloaded this aircraft and using it as AI. After takeoff, I notice it starts to "rock" back and forth for a bit, then stops, then starts again.
This is about 2-3 minutes into the flight.
Is there some kind of correction I could make in the aircraft.cfg to stop this? Or is this maybe a frame rate problem?
Using FSX w/acceleration and XP with SP-3 and Ttools.
Everything else perfect. I do realize this is not AI aircraft, but do not find anything else that works or even shows up.
Thank you in advance.
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Post by aerofoto - HJG Admin on May 14, 2010 20:08:00 GMT
Our current B707/720 aren't intended to be used as AI models .... even though I'm aware of some folk having done so successfully and albeit with quite a severe FPM impact.
What you're observing, if you're observing "MAY" be on account of this fact.
Beyond this .... there are no such problems at all with any of B707/720 (or other models) in either FS2004 or FSX .... that I'm aware of !
Mark C
AKL/NZ
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Post by Dan K. Hansen on May 18, 2010 19:57:58 GMT
Several issues come into play here.
First of all as Mark very correctly stated, Flyable aircraft are NOT suited for AI, if nothing else then for the very heavy impact on FPS.
Secondly. HJG aircraft have a highly finetuned fde which takes care of all environment factors inclusive aircraft geometry.
The AI engine is more or less independent of this, it's highest concern is to get an object from A to B given departure time, arrival time, and speed (to put it simple)
In the airport surroundings the AI engine uses the flight dynamics for the aircraft.cfg in order to get it up and down, and getting into the the general traffic issues given by the ATC engine, but still trying to keep the time. Out in the "open" (away from the airport sector) the AI engine is mostly concerned with the beforementioned speed and times. Hence speeding up/slowing down all the time to keep the timeplan. If the aircraft is made for a certain speed at a specific flightlevel to stay level and the AI engine goes either over or under this, a sensible aircraft like the HJG (or indeed most other flyable aircraft) will react to this by trying to either speed up (nose down) or slow down (nose up) by using trim and still trying to keep the given flight level, and still trying to live up to the demanded flight times (like having the AP set on IAS-hold).... so far so good.
On top of this there are several ways to actually create these flightplans.
Most are made by using the old TTools program known from FS9, others are made from the TraffictoolDataBase (included in the SDK). ... Others again made from a mix. Some are converted FS9 plans, others are genuine FSX plans etc. etc. You get the picture.
Each approach/program uses different methods of trying to compensate for the turn-around period needed in FS for being able to make roundtrips in various ways ... For example WOAIs flightplans more or less sets all the aircraft to a speed of 200 KIAS..... others add a fixed amount of minutes to the given flightplan time others again uses real world times and just "hopes" that turnaround time, taxiing, weatherconditions, ATC etc. etc. etc ...doesn't ruin the flightplan too much.
So you see there are many things that influences an aircrafts behaviour in the traffic file. But I'm pretty sure that your "wobbling" effect is due the way the AI engine impacts the aircraft.
May I suggest that you use one of the exellent models available from the usual places specifically made for AI-use instead of a flyable model. If you prefer a flyable model like HJG's I suggest you user a standard B737 or B747 airfile instead of the HJG provided, but then you will of course not be able to fly it yourself and getting the right reactions. Especially Dee Waldrons AI aircraft or the AIA models
I hope that this somewhat answers your question.
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