http://www.chuckyeager.com/
Jon
<>
begin 600 Chuck Yeager.com.url
M6T1%1D%53%1=#0I"05-%55),/6AT='`Z+R]W=Whttp://mail.flightgear.org/mailman/listinfo/flightgear-devel
> > OK. Has the NTSB been called to the scene[s], yet?
>
> They are not responsible for accidents on European territory ;-)
I don't think they are *responsible* for _crashes_ anywhere! :-P
Jon
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> From: Michael Basler [mailto:[EMAIL PROTECTED]]
>
> Hi,
>
> I just received a problem report from a German user on the
> released version
> 0.7.9 which I - unfortunately - was able to confirm in part.
>
> 1. Start at CL77 Santa Cruz leads to an immediate crash.
>
> 2. He reported a crash at
> and/or funny would be good. A USB Flame-thrower would be a
> pretty severe
> minimum hardware requirement, so something simpler than that
> would be better.
> Maybe if you hit a building it should just pop up a photo of
> 70 virgins in paradise? oops sorry ...bad joke ;-)
No, I think the
>
> --
> "I'm not crazy, I'm plausibly off-nominal!"
> http://www.f15sim.com - The only one of its kind.
Hey. Are you paying royalties on that quote!
;-)
Actually, my quote was that we wanted to be "plausible, off-nominal",
meaning in outer-envelope flight we wanted to be believable in our m
(Yet Another Stupid Feature Request Inquiry From an Ignorant Developer)
I have seen several articles (seen != fully_read_or_understood) mentioning
the modeling of "shadows" using projected texturing. Has anyone here ever
considered doing this? Is this something that is inherently not possible in
> I didn't mean to evoke a defensive response.
[That's just how I write, sometimes. I wasn't being defensive - though it
came across that way - just argumentative. :-)]
> The question is, who should be updating the values inside of
> FGInterface (which are really inside the JSBSim class since JS
> Where in the code is the gear position (i.e. relative to retracted or
> extended) calculated and managed?
> Curt.
The gear forces and moments are calculated in individual instances of
FGLGear. The ground reactions as a whole are managed in FGGroundReactions.
Jon
_
> > Ha! Actually, when we get around to it, we do want to be
> > plausible off-nominal, too.
> >
> > Jon
> >
> Jon, I read that sentence, digested it and promptly started snickering
> insanely. What a quote. "I'm not crazy, I'm plausibly off-nominal!"
>
> *rofl*
??
Maybe I've been around
David M.: do you see a problem with the C310? I can't fly now - my "big"
machine is in the shop.
Jon
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This may not be for the near term, but did anyone ever decide we could do
aircraft landing lights?
> Jon
>
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> Christian Mayer wrote:
> > To the logical side: as long as the plane start *on* the
> runway it's
> > IMO very unrealistical that the engine isn't running.
>
> Y'know, folks, this is actually a really (really) good point. :)
Hilarious. That's right. Why would anyone be on the runway, ready
> Hmm, I have two issues:
>
> Ctrl+U gives an exception
> c310 doesn't work for me right now.
Refresh my memory: what's wrong with the C310?
Jon
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> Would you want to mention the switch to JSBsim as default
> FDM?
Didn't that happen with 0.7.8?
> And maybe the c310 model addition?
Yes, I think this is new.
Jon
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A worthy aircraft to model (the DC-3):
http://www.douglasdc3.com/amaze/amaze.htm
Jon
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> One of the problems is that JSBSim does its own output outside of the
> SG_LOG infrastructure. We'll need to modify JSBSim to allow custom
> logging interfaces, and that might be a bit of a tedious chore.
No really. If we want JSBSim to have no output log, simply set
JSBSIM_DEBUG=0
I don't th
> Yup, I would say something that is gimp-ish or photoshop-ish. You'd
> want to be able to handle layers (you can do the underlying surface as
> one layer, then the paint markings as another layer.) Then if you
> give the marking layer a bit of transparency, some of the underlying
> surface/text
> [EMAIL PROTECTED] writes:
> > 1) The runways at KEDW appear to have no texture - they are pure
> > white.
>
> Hmmm, looks like no one ever created textures for 'dirt' runways.
A couple/few of those are supposed to be concrete, I believe. Can someone
create dirt runway textures before the next
> Get a card with T&L setup (i.e. a GeForce or a Radeon). FlightGear
> profits heaps from the T&L setup.
How?
Jon
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It appears as though the menu is not visible by default with the latest
build. True?
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Hey. Who hijacked my thread?
;-)
Jon
> Vallevand, Mark K writes:
> > Where is the Lino airpark? I've been in Lino Lakes for 11 years.
> > I've never heard of it. Does it show up on MapQuest (or whatever
> > mapper you use)?
> >
> > I drive by the seaport regularly. I can't think where the
> Have you upgraded any cygwin packages recently?
No, but I am doing so, now to see if that helps. If I need to revert some,
I'll try that, too.
Jon
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Trying to build SimGear and FlightGear (using the approach I have always
used) gives this:
running /bin/sh ./configure --with-logging CFLAGS= CXXFLAGS= --no-create
--no-recursion
./configure: 4: Syntax error: Bad fd number
make: *** [config.status] Error 2
./aclocal.m4:346: /usr/bin/m4: Warni
This is a fascinating report to read:
http://www.aerospace.nasa.gov/aero_blueprint/index.html
> JON BERNDT
> Project Engineer
> LOCKHEED MARTIN SPACE OPERATIONS
> Office: (281) 483-0342
> Pager: (281) 527-6598
> [EMAIL PROTECTED]
>
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GeForce 4 announced.
http://www.nvidia.com/
Jon
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> > I'm not sure of the timeframe, but I'd expect JSBSim to have a
> > turboprop engine model sometime this year. And we already have
> > YASim and UIUC models that can model turboprops (I think).
>
> I'd very much like to model a Twin Otter and maybe even a Dash-8. I'm
> sure that others wi
> Aside from stabilizing our current flight models, I think that the
> absolute top priority for 0.8 should be at least a minimal level of
> runway lighting. While the general scenery lighting makes night
> flying nice (and makes roads look great), landing at night is too hard
Does this include
> Great! We've got a volunteer for LinuxTag 2003 then?
>
> CU,
> Christian
Probably 2005 or 06!
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> Anyway, have a look at
http://www.karlsruhe.de/Tourismus/index.php3
Nice web site. Someday in the not-too-distant future we hope to visit
Germany.
Jon
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> The latest stable Plib (1.4.2 I believe) should also work (It
> does for me). It shouldn't be necessary to keep checking out CVS Plib.
It takes about 2 minutes (maximum) to check out and build on my machine. I
always do it to avoid (and rule out) any build problems. This is one reason
why I n
> No. That was going to be my next guess. Thanks, I'll try that!
>
> Mark
I've got a perl script (and I believe Norman also has a script) that
automates that whole process for me, in the corret order, with dependencies.
If you do a checkout of flightgear, you should also do a checkout of Simge
> I am again trying to compile the CVS version of FlightGear.
> I *think* I am following instructions!
> I have not had any trouble building the version 0.7.8, but
> with CVS I get the following compile error:
Did you do a build of plib first, followed by Simgear, then FlightGear?
Jon
__
> A little difficult to correct the left swing when
> zillions of HDD io events are also happening ...
>
> But get the nose up, IAS holding, we're FLYING ...
>
> Great stuff. Tried a simple 1,000 ft circuit, like
> KSFO was my own small private field ... As always
> the tiling and scenery means
> Is there a way to run FlightGear using the JSBSim xml runscripts
> or do those only work with the standalone version of JSBSim?
There might be - it should not be too hard to do so, but nobody has cared to
try, yet.
Jon
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One more thing about our FCS: some aspects of it are still not modeled.
Jon
> -Original Message-
> From: BERNDT, JON S. (JON) (JSC-EX) (LM)
> [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, January 24, 2002 3:22 PM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [Flig
> I'm running JSBSim and experimenting with various filters.
> Is there any documentation on the control filters other
> than the comments that appear in the source code?
> Thanks for any help!
Here is a JSBSim overview article that has some information:
http://jsbsim.sourceforge.net/JSBSimCUJ.P
> I don't see why not as long as you #include
>
> Note
> This Dialog Box requires the user to click a button for it to go away
>
> Also note that in this case, ie the plane has crashed, I would prefer
> to see a data member in FGInterface that was set appropriately by the
> current FDM. Th
> Right. One of us needs to get around to writing a pop-up dialog box
> when that happens, to let the user know what's going on.
Right now, when JSBSim crashes, it freezes the FDM. It also puts
a message onto the message queue that says: "Crash Detected". The
message queue is read in JSBSim.cxx.
> Do you mean :
>if (heat_capacity_exhaust >= 0.001)
>
> because zero is less than 0.001 and it bombs anyway !
Oh, good grief! Maybe I just need to go get a job flipping burgers at
McDonald's.
Sorry. Again. I guess it was a mistake to clean the wax out of my ears
yesterday. Apparen
> Compilers complains : delta_T_exhaust used without having
> been initialized
>
> Why the '-=' in the else case of calculation of
> delta_T_exhaust ? What is its previous value ?
Oy! Good catch. I screwed up. Fix to be committed shortly.
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What is MetaKit, anyhow?
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> > > You might want to notice a few things:
> >
> > > 4) the lens distorts the perspective a little, the
> > > lower left and right side panels are perpendicular to the
> > > flight deck
Maybe I am not understanding what you mean. The panels with instruments to
the left of the pilot
Did anyone notice my post?
The propellers on the 310 are not counter rotating. If they are, the
aircraft must take off like a Frisbee! The props are identical.
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Friday, December 07, 2001 2:06 PM
> To: [EMAIL
Darrell:
Any more (current) issues with Mac builds with JSBSim?
Jon
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> These are hardly the hallmarks of poor and unportable code.
>
> Hell, if syntax
> errors like these are the only issues that come up, I'll consider
> myself lucky.
Both true. :-)
Jon
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> You'll note that I've tried REALLY hard in YASim to avoid
> including ANYTHING I don't have to.
including comments :-o
> So he adopted the convention that class members always start with an
> underscore. I really like it -- it's obvious, doesn't impair
> readability like prepended English doe
I might even be able to write a script to do that move.
> With a moderate amount of work, we can move all of those models to
> JSBSim. They won't be fully accurate, but they'll still be better
> than the UIUC versions.
Jon
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> > I don't suppose its any consolation to know that it seems to have
> > been fixed in the version of MSVC that ships with Microsoft Visual
> > Studio.NET.
>
> Woo hoo! So (seriously) would folks object to leaving this in place
> and requiring a recent MSVC compiler? With gcc, this is a no
> for(int i=0; i for(int i=0; i Honestly, if compilers vary this much, doesn't it seem simpler to just
> pick one?
It's not too bad an exercise to make the code completely cross-platform
capable. Have a look at the paper I mentioned:
http://jsbsim.sf.net/JSBSimCUJ.PDF
Jon
_
> It doesn't take major changes, just multiple changes to the same line.
> CVS is line-based; if I have a file in the archive:
>
> line1
> line2
> line3
>
> And you modify it:
>
> line1
> line2-fix1
> line3
>
> And I check in a change:
>
> line1
> line2-fix2
> line3
Yeah, I know about CVS -
I fixed the problem with the cumulative P-Factor and it indeed was that
which was causing the problem. I will be doing further testing (it's
lunchtime). Will commit when validated.
Jon
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> Forgive me. It was my mistake. Turns out that when I updated
> from FlightGear
> CVS there was there was a conflict with
> usr/Include/config.h.in and some
I meant /src/FlightGear/src/Include/config.h.in
Jon
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[EMAI
Forgive me. It was my mistake. Turns out that when I updated from FlightGear
CVS there was there was a conflict with usr/Include/config.h.in and some
spurious characters were inserted by CVS detailing the conflicts. This is a
warning, however, that others of you may run into this problem, and to b
I *think* this may be a new bug introduced into flightgear - but could be
me. This is new to me. Trying to build fgfs after a successful complete
update of all major components I get this:
Making all in tests
make[1]: Entering directory `/home/JBERNDT/src/FlightGear/tests'
gcc -DHAVE_CONFIG_H -I.
> > I suppose we ought to create a list of priorities and basic capabilities
> > we are lacking and go for those before we go on to the finer details
like
> > realism and random failures. You think?
> I proposed that as an example, but you need to design in the ability for
> expansion now or you
> I proposed that as an example, but you need to design in the ability for
> expansion now or you might wind up ripping out a lot of code later. IMHO
you
> need to start worrying about weight and balance now, before some of the
> other items on the table. I don't see anything to account for # of
The current version of JSBSim in JSBSim CVS is now completely syncronized
with several bugs squashed. The intense efforts of the FlightGear and the
"extended" JSBSim team have given us a new vehicle to fly, the Cessna 310.
As David Megginson mentioned in his release announcement, there are still a
> then I should replace the FGState.cpp code from the C310 package??
>
> JW
If I were you I'd grab it all from JSBSim CVS now. It's all in sync and
works - it is *very* fresh.
This new version requires the latest config files.
Jon
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> Okay, I think I found it.
>
> In FGPosition 1.31 2001/11/30 16:49there is a GetHOverBCG() and
> GetHOverBMAC()
>
> In FGState.cpp from the C310 package the function
> FGState::GetParameter(...)
> defines
>
> case FG_HOVERB:
> return Position->GetHOverB():
>
> Should one or both
> Doing a new build with the the C310 code and latest CVS
> (Wednesday- noon)
>
> during compile FGReportState complains about a missing
> FGAerodynamics::GetNlf();
> At runtime everything normal until error msg:
>
> "FGState::GetParameter() - No handler for parameter height/span"
>
> Is
Would this be of help?:
http://www.lycoming.textron.com/products/engines/540.html
I provide this link because I suspect the IO540 is the engine we want(?)
Jon
> -Original Message-
> From: John Check [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 30, 2001 4:19 PM
> To: [EMAIL PROT
Sorry :-)
JSBSim.cxx is the interface (a.k.a. "The Bus") that acts as the conduit for
data trasnfer between JSBSim and FlightGear. It is not used in teh
standalone version of JSBSim. JSBSim.cpp is the driver program that
instantiates and runs JSBSim standalone. It is not used with FlightGear.
Jo
> In the past, we've talked about removing JSBSim.cxx from the JSBSim
> distro completely, especially since it cannot be compiled there (much
> less tested).
Yep. Right now we are in sort of a Mexican standoff situation. JSBSim.cxx
exists only to support JSBSim. However, JSBSim.cxx is not compile
> Also, automake is getting confused between JSBSim.cpp (which contains
> main()), and JSBSim.cxx (the FDM interface). At link time, it creates
> the JSBSim.o, then overwrites it when it compiles the next one. Could
> one or other of these files be renamed for clarity?
No chance. First (but not t
> OK. Started with a fresh JSBSim checkout. The Makefile.linux is pretty
> out-of-date, and basically, broken. The attached patch gets things
> moving a bit further, but basically, I don't think this system is
> anywhere near as flexible as automake, so I'll be
> concentrating on that
> from now
> > contributions are just being ignored (my improved cp2fg script still
> > hasn't made it into CVS yet!!!).
Yes, it has.
Jon
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> > This does not yet work with JSBSim.
>
> But it used too :-)
When? I've tried it over the years many times and never had it work for me.
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Is there anyone out there that can get us this document:
Ballin, M. G. ; A High Fidelity Real-Time Simulation Of A Small Turboshaft
Engine, NASA TM 100991, July 1988
> Jon Berndt
>
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You
may need the version of JSBSim that is currently in JSBSim CVS. There was a bug
that included some beta code in the version which is now in FlightGear
CVS.
Curt,
you may want to grab the current JSBSim code and place it in the FlightGear
CVS.
Jon
-Original Message-From:
> Our current sky model amounts to
> about 10 minutes of me guessing and fiddling with numbers.
That about sums up our work on the FDM, too.
;-)
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Here is the only picture I have seen of the B2 cockpit.
http://www.link.com/b2atd.html
Jon
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Did we goof somewhere? Do we need to change something?
Jon
> -Original Message-
> From: D Luff [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, November 15, 2001 8:49 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Flightgear-devel] Location of SimGear
>
>
> John Check writes:
>
> >
> > > Is
> > > THIS IS THE CHASE VIEW PILOT's POSITION OFFSET
> >
> > offset. Let's call it what it is.
>
> hehe ok. Can we shorten it (so the menu item fits on the screen)?
> Chase View Offset?
I was thinking that was not descriptive enough. How about:
"This here is called the Chase View Offset so a
> Perhaps we should rename something because you seem to bring this
> up every time someone mentions the pilots offset dialog.
>
> THIS IS THE CHASE VIEW PILOT's POSITION OFFSET
That's a good name for it. The reason I bring it up is because "Pilots
offset dialog" is not what it is. Let's call it
> THIS IS THE CHASE VIEW PILOT's POSITION OFFSET
That's a good name for it. I brought it up because it is not a pilots
offset. Let's call it what it is.
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> candidates for CMake) and that CMake supports Borland and Visual C++
I've always wanted something that supports Borland. What does "support" mean
in this case?
Jon
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Is the scenery server down?
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> > > That's due to a bug in JSBsim's pseudo-XML parser. It fails
> > > as soon as it gets a tab instead of a space char. I don't know why
> > > that's working under Linux (I'm assuming it does or it would have
> > > been fixed much earlier).
> >
> > Not so fast.
>
> I'm sorry if I offended you
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