leee wrote:
> On Saturday 10 Oct 2009, Pete Morgan wrote:
>
>> Roy Vegard Ovesen wrote:
>>
>>> On Saturday 10 October 2009 22:33:01 Curtis Olson wrote:
>>>
Really, this is all in how the autopilot is tuned and
configured.
FlightGear doesn't model realistic control
On Wednesday 14 Oct 2009, Alan Teeder wrote:
> > -Original Message-
> > From: leee [mailto:l...@spatial.plus.com]
> >
> > > Did you try scheduling your autoplilot´s height-error to
> > > pitch demand gain with 1/V (speed inverse) ?
> > >
> > > Alan
> >
> > Re-read the end of the paragraph a
> -Original Message-
> From: leee [mailto:l...@spatial.plus.com]
> >
> > Did you try scheduling your autoplilot´s height-error to pitch
> > demand gain with 1/V (speed inverse) ?
> >
> > Alan
>
> Re-read the end of the paragraph after the one you quoted above ;-)
>
> LeeE
Red Face (me
On Monday 12 Oct 2009, Alan Teeder wrote:
> > -Original Message-
>
> For the faster and more
>
> > maneuverable military jets though, I found that I really needed
> > guaranteed higher rates to both ensure a crisp response and
> > avoid instabilities. For example, I could tune an
> > altit
> -Original Message-
For the faster and more
> maneuverable military jets though, I found that I really needed
> guaranteed higher rates to both ensure a crisp response and avoid
> instabilities. For example, I could tune an altitude-hold cascade
> that would work fine at speeds up to 40
On Sunday 11 Oct 2009, Roy Vegard Ovesen wrote:
> On Sunday 11 October 2009 14:04:19 Kishore wrote:
> > Not having a common time base reference for the various
> > subsystems can lead to varying performance based on the
> > underlying hardware on which flightgear is run. The
> > PID/Autopilot tunin
On Sunday 11 Oct 2009, Alan Teeder wrote:
> > -Original Message-
> > From: leee [mailto:l...@spatial.plus.com]
> >
> > > ie if u stick in a new value to the FDM then it will react..
> > > That sucks in my oioiion.. I how have to create my own craqo
> > > to make the model. that sucks to me.
On Sunday 11 October 2009 14:04:19 Kishore wrote:
>
> Not having a common time base reference for the various subsystems can lead
> to varying performance based on the underlying hardware on which flightgear
> is run. The PID/Autopilot tuning for a given model should not vary based on
> the hardwar
On Sunday 11 Oct 2009 4:30:08 pm Curtis Olson wrote:
> > I think that your premise that autopilots need to run at very high frame
> > rates is not realistic.
> >
> > When I first got into autopilots and simulation, back in the 60´s, all of
> > our models had as the final element a 0.1 second low pa
On Sun, Oct 11, 2009 at 3:39 AM, Alan Teeder wrote:
> First, thanks for the quick into to Flightgear´s autopilot.
>
> I think that your premise that autopilots need to run at very high frame
> rates is not realistic.
>
> When I first got into autopilots and simulation, back in the 60´s, all of
> o
> -Original Message-
> From: leee [mailto:l...@spatial.plus.com]
> >
> > ie if u stick in a new value to the FDM then it will react.. That
> > sucks in my oioiion.. I how have to create my own craqo to make
> > the model. that sucks to me..
> >
> > pete
>
> You really need to chill a bit
On Saturday 10 Oct 2009, Pete Morgan wrote:
> Roy Vegard Ovesen wrote:
> > On Saturday 10 October 2009 22:33:01 Curtis Olson wrote:
> >> Really, this is all in how the autopilot is tuned and
> >> configured.
> >>
> >> FlightGear doesn't model realistic control surface deflection
> >> rates so it's
> From: Roy Vegard Ovesen [mailto:roy.v.ove...@haugnett.no]
>
> Control surface deflection rate can be limited by inserting a low-pass
> filter
> between the output of the final PID-controller and the control surface.
> THis
> is done in the autopilot config file.
>
For JSBSim aircraft, you also
Roy Vegard Ovesen wrote:
> On Saturday 10 October 2009 22:33:01 Curtis Olson wrote:
>
>> Really, this is all in how the autopilot is tuned and configured.
>>
>> FlightGear doesn't model realistic control surface deflection rates so it's
>> possible to command an instantaneous deflection of the c
On Saturday 10 October 2009 22:33:01 Curtis Olson wrote:
>
> Really, this is all in how the autopilot is tuned and configured.
>
> FlightGear doesn't model realistic control surface deflection rates so it's
> possible to command an instantaneous deflection of the control surfaces.
Control surface
On Sat, Oct 10, 2009 at 3:23 PM, Heiko Schulz wrote:
> If you mean this sudden banking when after reaching a new wayoint: yes. It
> is known and is still on the bug-list on flightgear.org anywhere.
>
> There were some aircraft authors who had a workaround with nasal- to my
> knowledge the 787 For
>
> This is a problem across the whole system and a mega
> fault.
>
If you mean this sudden banking when after reaching a new wayoint: yes. It is
known and is still on the bug-list on flightgear.org anywhere.
There were some aircraft authors who had a workaround with nasal- to my
knowledge t
t;,
albeit c_++, py or indeed nasal..
This is a problem across the whole system and a mega fault.
pete
> -Original Message-
> From: Pete Morgan [mailto:ac...@daffodil.uk.com]
> Sent: 10 October 2009 20:18
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-d
er 2009 20:18
To: FlightGear developers discussions
Subject: Re: [Flightgear-devel] Autopilot and violent roll
Actually my motion platform is at the momnet I am taking it one step at
a time.. ie so far its banking left to right by around 10 degree's which
kinda exagarrated the sim and is usef
Actually my motion platform is at the momnet I am taking it one step at
a time.. ie so far its banking left to right by around 10 degree's which
kinda exagarrated the sim and is useful..
Anyone as a pilot at the moment can tip the aircfaft to lbank.. However
this jerk needs solving.. SO what y
I haven't looked at these autopilot configurations (at least not for a long
time) but off the top of my head, I think this can all be fixed by tuning
the autopilot.
For instance, lowering the max aileron deflection from (-1 ... 1) down to
maybe (-0.1 ... 0.1) might be an interesting thing to start
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