Hi,
> The FDM interface treats CAS and IAS identically -- the calibration
> error, as you point out, is poorly defined and will vary between
> installations. All FDMs simply report a single "calibrated airspeed"
> value; if other code wants to model the vagaries of a given ASI, then
> it's welco
On Thursday, April 18, 2002, at 09:19 PM, Curtis L. Olson wrote:
> Anyone up for a 0.7.10 release sometime soon?
Oh, oh, ME! I will need to beat on my interface between our (at work)
proprietary FDM and FlightGear's display first. I've let it languish
since the 0.7.9 release, anything I sho
David Megginson writes:
> Curtis L. Olson writes:
>
> > I'm flying the stock JSBSim C310 ... Linux debian, nvidia card,
> > gcc-2.95.4, compiled with threaded scenery paging enabled, yadda,
> > yadda ... Am I just suffering from heat stroke now that we had an 80
> > degree day after a long M
* [EMAIL PROTECTED] (Curtis L. Olson) [2002.04.19 21:24]:
> Anyone up for a 0.7.10 release sometime soon? If anyone wants a real
> time wasting discussion, what do people think about switching from
> 0.7.10, 0.7.11, 0.7.12, etc. to going 0.8, 0.9, 1.0, 1.1, 1.2, 1.3,
> that way it looks like our
Jim Wilson writes:
> "Curtis L. Olson" <[EMAIL PROTECTED]> said:
>
> > Anyone up for a 0.7.10 release sometime soon? If anyone wants a real
> > time wasting discussion, what do people think about switching from
> > 0.7.10, 0.7.11, 0.7.12, etc. to going 0.8, 0.9, 1.0, 1.1, 1.2, 1.3,
> > that w
"Curtis L. Olson" <[EMAIL PROTECTED]> said:
> Anyone up for a 0.7.10 release sometime soon? If anyone wants a real
> time wasting discussion, what do people think about switching from
> 0.7.10, 0.7.11, 0.7.12, etc. to going 0.8, 0.9, 1.0, 1.1, 1.2, 1.3,
> that way it looks like our developmen
"Curtis L. Olson" <[EMAIL PROTECTED]> said:
> I agree that has to be a typo, I'll change it to "=".
>
> Curt.
>
>
> Jonathan Polley writes:
> > Just did a CVS update and rebuild. There is a warning in sgVec3Slider.css
> > (line 579) that should probably be fixed:
> >
> > if (fabs(y) <
A fair amount has changed in cvs today. If you are tracking cvs, make
sure you update both your FlightGear cvs tree and your base package
cvs tree ... otherwise you will have problems.
The view manager code is really shaping up, David made some nice
changes to the C172 3d model, I fixed a crash
I agree that has to be a typo, I'll change it to "=".
Curt.
Jonathan Polley writes:
> Just did a CVS update and rebuild. There is a warning in sgVec3Slider.css
> (line 579) that should probably be fixed:
>
> if (fabs(y) < 0.001f)
>y == 0.001f;
>
>
> should probably be
>
>
Just did a CVS update and rebuild. There is a warning in sgVec3Slider.css
(line 579) that should probably be fixed:
if (fabs(y) < 0.001f)
y == 0.001f;
should probably be
if (fabs(y) < 0.001f)
y = 0.001f;
Jonathan Polley
_
John Wojnaroski wrote:
> Indicated Airspeed (IAS)
> Calibrated Airspeed (CAS)
> Next comes Equivalent Airspeed (EAS)
> Finally TAS
>
> Bottom line question for the FDM' rs: Would you take a few moments
> to comment/explain how your models handle the various airspeeds.
The FDM interface tre
Julian Foad writes:
> configure.in includes a fix to make it work with both versions of
> the auto-tools:
>
> if OLD_AUTOMAKE
> INCLUDES += -I$(top_srcdir)
> else
> INCLUDES = -I$(top_srcdir)
> endif
>
> But
> (1) If "=" is good enough in the new version, isn't it good enough
> in both versions
- Original Message -
From: John Wojnaroski
To: [EMAIL PROTECTED]
Sent: Thursday, April 18, 2002 3:02 PM
Subject: Airspeeds?
Hi,
On the subject of airspeeds:
Indicated Airspeed (IAS) is calculated based on the difference between
stagnation pressure in the pitot tube and the static pres
Julian Foad writes:
> This is what you get if the wrong version of automake/autoconf is used.
>Unfortunately the old and new versions are not compatible. SimGear needs the old
>version. The automake/autoconf supplied with CygWin automatically detects which
>version to use, and it might be po
This is off the top of my head with a healthy mix of speculation.
But, I believe you can override the 'install' command in the
Makefiles. Often it is just "cp" or the is often an actual "install"
program or similar "install.sh" script. This means that in theory,
you ought to be able to write a s
Julian Foad writes:
> Doesn't everyone have the same problem that I have: that after
> re-building plib and/or SimGear, even after a one-file change, the
> "make install" copies all of the header files to the install
> directory, putting the current date stamp on them, even though they
> hav
Doesn't everyone have the same problem that I have: that after re-building plib and/or
SimGear, even after a one-file change, the "make install" copies all of the header
files to the install directory, putting the current date stamp on them, even though
they have not changed. This causes almos
configure.in includes a fix to make it work with both versions of the auto-tools:
if OLD_AUTOMAKE
INCLUDES += -I$(top_srcdir)
else
INCLUDES = -I$(top_srcdir)
endif
But
(1) If "=" is good enough in the new version, isn't it good enough in both versions?
(Not necessarily: maybe the meaning has c
This is what you get if the wrong version of automake/autoconf is used. Unfortunately
the old and new versions are not compatible. SimGear needs the old version. The
automake/autoconf supplied with CygWin automatically detects which version to use, and
it might be possible to get these auto-
David Megginson wrote:
> 1. They're hard to use from inside the 3D cockpit, at least until Andy
>gets mouse clicks working on his wrap-around panel; and
I'm still here, I promise! Hopefully I'll have a good whole day this
weekend to devote to flight gear stuff. For those interested in
exc
Curtis L. Olson writes:
> I'm flying the stock JSBSim C310 ... Linux debian, nvidia card,
> gcc-2.95.4, compiled with threaded scenery paging enabled, yadda,
> yadda ... Am I just suffering from heat stroke now that we had an 80
> degree day after a long MN winter? Has anyone else seen this
Update, after flying a while longer, the panel has now suddenly
started updating again. This is definitely something transient that
goes and comes.
Curtis L. Olson writes:
> I've seen this problem before (or something very similar) and I'm not
> sure what to make of it, and I'm not sure how to
I've seen this problem before (or something very similar) and I'm not
sure what to make of it, and I'm not sure how to reproduce it, other
than to go for a really long flight.
Starting out my flight everything worked great, but I've been airborn
for about 2 hours now. I went away for a while and
I recently upgraded from SuSE 7.2 to 8.0 and since then I get strange
error messages when I try to run autogen for SimGear (and also
FlightGear):
---
Host info: Linux i686
automake: 1.5 (15)
Running aclocal
Running autoheader
Jon Berndt writes:
> > JSBSim isn't reporting the flap position -- it's a JSBSim-specific bug
> > (you should still see the flaps move with YASim).
>
> Bug? This would surprise me as the aero effects are there. Could be that
> we just haven't gotten around to providing a property for it for
Frederic Bouvier writes:
> > What do you mean, exactly, by a "cutting" disk?
>
> We can see the interior of the c172 when viewing the front of the
> plane in the external view
Right -- I forgot to edit the ac file. I'll check in the fix right
now.
All the best,
David
--
David Megginso
Does anybody knows where can I find some information on how "native" fgfs I/O protocol
works ?
Is it possible to use PIPE against SOCKET in sharing data with other process ?
Thanks.
Sergio Roth
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htt
> > 3. Flaps in c172JSBsim still doesn't animate.
>
> JSBSim isn't reporting the flap position -- it's a JSBSim-specific bug
> (you should still see the flaps move with YASim).
Bug? This would surprise me as the aero effects are there. Could be that
we just haven't gotten around to providing a p
David Megginson writes:
> Martin Dressler writes:
> Click the left mouse button once before you leave view mode. This
> isn't really a problem with the 3D cockpit (which will likely be the
> default as soon as we can make the instruments clickable), since it's
> easy to see where you are looking.
From: "David Megginson" <[EMAIL PROTECTED]>
> Frederic Bouvier writes:
>
> > You forgot to correct your model to avoid the "cutting" propeller disc
!
>
> What do you mean, exactly, by a "cutting" disk?
>
>
We can see the interior of the c172 when viewing the front of the plane in
the
external vie
Martin Dressler writes:
> 1. Autopilot in Heading hold mode hold heading some degrees of the
> red marker.
Yes, it's been bad for a while and needs looking into.
> 2. When you switch your mouse from view mode it doesn't centre view
> and it is realy hard to find your panel again.
Click the
Frederic Bouvier writes:
> You forgot to correct your model to avoid the "cutting" propeller disc !
What do you mean, exactly, by a "cutting" disk?
All the best,
David
--
David Megginson
[EMAIL PROTECTED]
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Flightgear-devel mailing list
[EMA
1. Autopilot in Heading hold mode hold heading some degrees of the red marker.
2. When you switch your mouse from view mode it doesn't centre view and it is
realy hard to find your panel again.
3. Flaps in c172JSBsim still doesn't animate.
4. I get different airspeed on panel and HUD (126 kt /
From: "David Megginson" <[EMAIL PROTECTED]>
> magnification, it was obvious what had happened. A new checkin is on
> the way.
You forgot to correct your model to avoid the "cutting" propeller disc !
-Fred
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On Thu 18. April 2002 13:17, you wrote:
> > Yes, I think the tach probably should only read 100-200 rpm while the
> > engine is cranking, before it catches. Maybe Alex (or David) could
> > watch this on their next flight?
>
> On the C172s I've used, the prop starts about as fast as a car engin
Jim Wilson writes:
> > Yes, that needs to be fixed, but I'm still trying to understand it
> > (even my own preflight inspections of a real C172 prop aren't helping
> > me yet).
> >
> If you look down at the propeller in the model from above (with the
> nose appearing pointed up on the scre
> I agree that this was how it was originally coded, but something has
> changed in the last week or so and the propellor definitely spins an
> order of magnitude slower than reported rpm.
Did someone get rps and rpm mixed up?? ;-)
smime.p7s
Description: application/pkcs7-signature
David Megginson writes:
> > Yes, the propellor spins way to slowly compared to engine rpm. This
> > might be intentional so that it maintains 'smooth' animation. But, it
> > is maybe just a little noticably too slow ...
>
> Actually, the propeller spins at *exactly* the reported RPM. The
>
To say it with other words, you made the blade flat and rotated along its
main axis,
while it should be twisted like an helix. When it rotates, the two front
edge should
catch the air to put it to the back of the plane.
-Fred
- Original Message -
From: "Jim Wilson" <[EMAIL PROTECTED]>
To
David Megginson <[EMAIL PROTECTED]> said:
> > The two blades are not twisted relative to each other: one blade is
> > pushing and the other pulling.
>
> Yes, that needs to be fixed, but I'm still trying to understand it
> (even my own preflight inspections of a real C172 prop aren't helping
>
> On the C172s I've used, the prop starts about as fast as a car engine,
> i.e. in well under a second. It would be hard to get a tach reading,
> but I'll try to remember.
Would you get the same cranking speed if you cranked the engine with the magnetos off?
It would certainly stop the engine s
Curtis L. Olson writes:
> Yes, I think the tach probably should only read 100-200 rpm while the
> engine is cranking, before it catches. Maybe Alex (or David) could
> watch this on their next flight?
On the C172s I've used, the prop starts about as fast as a car engine,
i.e. in well under a
Julian Foad writes:
> It spins even when the model is parked and the engine stopped. If
> pause mode is on, it spins more slowly but still does not stop.
This was fixed in JSBSim a week or so ago -- unless something else has
undone the change, try updating to the newest FlightGear CVS. The
m
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