Hi Gijs,
a few days ago Jester, simstick and me tried to get the pushback working 
over the MP-protocol. In principle it worked. But the problem is the 
time lag between th different users.  To avoid ugly oscillations it was 
necessary to use a very elastic junction between pushbak und 787, which 
looks (and is) very unrealistic. I think many users would rate this as a 
bug. At aerotow the elastic tow is not so noticeable.

I think for simulating pushback (or skydiver; anything where a 
non-elastic junction is needed), we need another concept. The "FDM" of 
the airliner in pushback (or the FMD of the skydiver while lifting) need 
to be switched off and the the pushback (or of the jump-plane) need to 
do all the simulation. Therefore we need to set position and orientation 
of another aircraft over the MP-protocol instead of transmitting 
forces.  For the skydiver nearly anything is there. We just need one 
Nasal listener on the skydiver side, which listens for setting 
position/orientation/speed by the FDM and overwrites this with the 
values (+ offset) of the jump-plane. And we need something similar at 
the jump-plane to set the position of the skydiver inside the jump-plane 
(without the skydiver would follow the jump plane in some distance (due 
to the time lag)).
For the pushback we need something similar. Additionally the pushback 
need to know the gear positions of the airliner to simulate it properly. 
But all this should be possible in Nasal.

Best regards,
Maik


Gijs de Rooy schrieb am 21.12.2007 16:06:
> Ok, let's try the 787-8 than.
>
>  
>
> Gijs
>
>
>
> ------------------------------------------------------------------------
> > Date: Fri, 21 Dec 2007 15:54:41 +0100
> > From: [EMAIL PROTECTED]
> > To: flightgear-devel@lists.sourceforge.net
> > Subject: Re: [Flightgear-devel] Pushback
> >
> > 787-8
> > --- Gijs de Rooy <[EMAIL PROTECTED]> schrieb:
> >
> > > > The 737 is JSBSim - it only works with YASim.> >
> > > HHS> > still in work:
> > > http://www.hoerbird.net/galerie.html> But already
> > > done: http://www.hoerbird.net/reisen.html
> > >
> > >
> > >
> > >
> > > Well, what aircraft do you recommend?
> > >
> > _________________________________________________________________
> > > Bekijk Yes-R's real life soap op MSN Video!
> > >
> > 
> http://video.msn.com/video.aspx?mkt=nl-nl&tab=m1192527562294&vid=8aff5b76-b78d-4b55-8b64-ef7e1d73aab2&playlist=videoByUuids:uuids:50b732c2-c105-41e9-adf0-36bd627d4eaa,0813da8c-031b-423f-a79d-35d925aee805,5cce447e-948d-43af-9862-45bb6bb9d6d8,6a39138c-f562-4254-be70-9d93343650f8,f9b8d78f-05a4-4c74-8e4b-28d20a4037ab&from=NLNL_Yes-R>
> > 
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> > >
> >
> >
> > still in work: http://www.hoerbird.net/galerie.html
> > But already done: http://www.hoerbird.net/reisen.html
> >
> >
> > __________________________________ Ihr erstes Fernweh? Wo gibt es 
> den schönsten Strand? www.yahoo.de/clever
> >
> > 
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