Re: [Flightgear-devel] DC3 3D Model
Arnt Karlsen wrote, .the 2 meter Marutaka C-47? I have no idea, sorry. .why not model the rc model, too? :-) I'm only doing the 3d model so that could be scaled down. As far as the flight model stuff, I have no idea. If I could find some outline drawings of the 172 310 I could plug away at that also. Jeff ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] ILS/Runway Heading
At 07:28 PM 1/22/2002 -0800, you wrote: Ralph Jones wrote: snip The setting of the OBS is immaterial on an ILS, because it does not work like a VOR... snip Actually (and much to my surprise) in some airplanes (for example the 737) it apparently does matter. I don't recall the details now, but I know of a case where a mis set instrument caused lots of confusion on an autopilot coupled ILS approach (in a full motion simulator, on a check ride), resulting in a missed approach, and a second check ride! The autopilot turned to the selected heading and departed the already captured LOC as I recall hearing it. (This still seems very strange to me too!!) If you are interested I can try to get the details for you. Come to think of it, that does make sense with a coupled autopilot: it would be the only way for the system to know what the base course is. The A/P would turn to the OBS course first and then start watching drift. It might wind up tracking eventually, by computing a gigantic wind correction angle! rj ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] ILS/Runway Heading
Ralph Jones wrote: At 07:28 PM 1/22/2002 -0800, you wrote: Ralph Jones wrote: snip ride! The autopilot turned to the selected heading and departed the already captured LOC as I recall hearing it. Come to think of it, that does make sense with a coupled autopilot: it would be the only way for the system to know what the base course is. The A/P would turn to the OBS course first and then start watching drift. It might wind up tracking eventually, by computing a gigantic wind correction angle! rj This appears to be what happened. The airplane was on an intercept heading, then when the loc was captured it then turned to the obs heading and departed the loc (crossing back thru it without actually trying to track it). I can't comment on the original question of where the correction for variation (true to mag change) is made in the sim code tho! jj ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] DC3 3D Model
Jeff [EMAIL PROTECTED] said: If I could find some outline drawings of the 172 310 I could plug away at that also. Jeff, Check this out: http://aviation.sosu.edu/aircraft/c310.html and these http://aviation.sosu.edu/aircraft/aircraft.html Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
[Flightgear-devel] Disused Airfields and an Intro
Heres a test; http://www.multimap.com/map/photo.cgi?client=europeX=505000Y=16scale=10width=700height=410gride=gridn= You want to land at Fairoaks. There are three airfields in shot, which one is it? A? http://www.multimap.com/map/photo.cgi?client=europescale=25000X=506500Y=162500width=700height=410gride=0gridn=0 B? http://www.multimap.com/map/photo.cgi?client=europescale=25000X=507000Y=157500width=700height=410gride=0gridn=0 C? http://www.multimap.com/map/photo.cgi?client=europescale=1X=500592Y=161941width=700height=410gride=0gridn=0 Note that the first two are DISUSED, but could look tempting, especially as A has aircraft clearly visible on it (even though the runway is the wrong orientation. BTW, C is Fairoaks, A is Brooklands, former aircraft factory and racetrack[1] and B is Wisley, satellite factory of Brooklands in the later war years and into the 70's[2]. IIRC there's actually a VOR or DME at Wisley. There are also two pairs of Arnco barriers across it as well! Not far away is Dunsfold[3], also disused: http://www.multimap.com/map/photo.cgi?client=europeX=503000Y=136000scale=25000width=700height=410gride=gridn= Disused airfields are fairly common in the UK, can I suggest the ability to handle these is something add to the 'to do' list? == Anyway, the main reason for this EMail is to introduce myself: Rick Ansell I'm an Operational Analyst with the UK MOD. This means I'm conversant with non-realtime, highly aggregated, models of various aspects of military ops. Unfortunately my first programming language is Fortran 77, with knowledge of perl and a little VB and Pascal. I work here: http://www.multimap.com/map/photo.cgi?client=europescale=5000X=484316Y=153921width=700height=410gride=0gridn=0 - just up to the right from the aircraft (that's the 'Nightbird' Buccaneer BTW). so this is my home airfield[4]: http://www.multimap.com/map/photo.cgi?client=europescale=25000X=485711Y=153763width=700height=410gride=0gridn=0 and I'm a member of: http://www.fasta.freeserve.co.uk/ What I hope to do in the future is locate a means of accessing those Royal Aircraft Establishment reports that are available to the public. My time is short (this is a secondary hobby, my primary one is canal restoration) so don't hold your breath, but... : I am also thinking of producing FG models of Farnborough and its aircraft throughout its history. This would be of use to both the FG team and FAST. Again, don't hold your breath. http://www.fasta.freeserve.co.uk/heap.jpg (FG: We can rebuild it!) In the shorter term I hope to do many things: a) Get the latest version of FG running on one of my machines b) Produce a few GPLd building models c) Do some more ground textures c) Write some 'think piece' papers. I may not be an ace programmer but I understand the process. Watch for a paper on 'Expanding the visual model' soon. d) Put an 'appeal for assistance' into the FASTA newsletter. I think FG is the sort of project to appeal to many ex-RAE members. e) Do the best I legitimately can to turn to FGs advantage my access to RAF air publications. BTW my home is 'in shot in A, here I am; http://www.multimap.com/map/photo.cgi?client=europescale=5000X=504326Y=161428width=700height=410gride=0gridn=0 The white spot in the limier gap in the trees is Narrowboat Invincible, afloat on the Basingstoke Canal :) I'll shut up now and go and do something _useful_ :) Rick [1] Brooklands was the site of the first 'hop' by a British citizen in a British machine by A V Roe (of Avro fame) in June 1908. Then a racetrack it became one of the earliest UK aerodromes, an aircraft factory and finally a museum. [2] This is where postwar aircraft such as the 'Valiant' were assembled and tested. [3] Postwar base of Hawker aircraft, home of the Hunter and Harrier, closed within the last decade. [4] Farnborough, location of the first sustained powered flight in the UK, by Samuel F Cody (at the time a US citizen, but working for the UK military) in 'Army Aeroplane No 1' on 16 October 1908. It was also the location of the first headquarters of the Royal Flying Corps in 1912. The hangers and HQ building from this era still survive. Later it hosed the Royal Aircraft Factory, then the Royal Aircraft Establishment as it became Britains foremost aviation research establishment. It is also the home of a Biannual aerospace exhibition and air display, generally regarded, along with Paris, as the foremost aerospace trade show in the world. -- David Farrent and Dougie O'Hara on the Cold War role of the ROC: 'What a world of sorrow is hidden in those few words - [Post attack] crew changes would have been based on crew availability.' ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] ILS/Runway Heading
John Wojnaroski writes: Hi, Looking thru Robin Peel's database I notice that runway headings in the ILS file are given as true headings as I ILS KLAX 06L 108.50 082.92 33.952390 -118.399094 ... I ILS KLAX 06R 111.70 082.92 33.950486 -118.398768 ... I ILS KLAX 07L 111.10 082.93 33.940199 -118.376567 ... or I ILS KLAX 24R 108.50 262.92 33.94. where 082.93 is the runway heading. In the nav code one finds nav1_magvar = 0; nav1_range = FG_ILS_DEFAULT_RANGE; nav1_effective_range = nav1_range; nav1_target_gs = ils.get_gsangle(); nav1_radial = ils.get_locheading(); which sets the inbound ILS course to true. I'm not sure what you are talking about with respect to the inbout ILS course being true. Am I mis-reading the data file? While you could fly the ILS with the CDI misaligned it makes more sense to align the CDi course with the runway heading as the code does, but I can't see where the mag variation is applied to arrive at the mag runway heading. If you look at the headings in default.ils you will see that they are already true headings. The panel appears to show the correct mag heading. Can someone tell me where the correction is applied? I'd look in src/Cockpit/steam.cxx for starters and work back from there. Regards, Curt. -- Curtis Olson Intelligent Vehicles Lab FlightGear Project Twin Cities[EMAIL PROTECTED] [EMAIL PROTECTED] Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] Disused Airfields and an Intro
Rick Ansell writes: Disused airfields are fairly common in the UK, can I suggest the ability to handle these is something add to the 'to do' list? Basically, we just need to support closed (X) runways, then make airports where all the runways are closed. CYOW, my home airport, has one closed runway itself. All the best, David -- David Megginson [EMAIL PROTECTED] ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] Crash on linux with latest CVS code
James,
I rebuilt again from CVS tonight (2nd time this week) and no problems. When I
do it I do a full rebuild including all the config and makefiles (even if I
think it might not be necessary).
This is a gcc2.95.2/glibc2.1 system for what thats worth. Ran default just as
you did and it loads up fine.
This really looks like corrupted XML. Is it possible that a merge conflict
occured that you missed? You can grep for that. Or you could check any xml
files flagged M or rm -rf the xml files and reupdate.
Best,
Jim
James Gallagher [EMAIL PROTECTED] said:
On Wed, 2002-01-23 at 07:52, Curtis L. Olson wrote:
James Gallagher writes:
I get the following seg fault with the latest CVS version of FG (using
the latest CVS SimGear):
[jimg@dcz FlightGear]$ src/Main/fgfs
FlightGear: Version 0.7.9
Scanning for root: command line
Scanning for root: /home/jimg/.fgfsrc
fg_root = /usr/local/src/X11/fgfsbase
Segmentation fault (core dumped)
Hmmm, this looks like you are dying in the property manager code some
how. Do you have the latest cvs version of the base package? Perhaps
a config file there got corrupted?
I double checked this. I have the latest fg base (from CVS).
Another things worth trying is to rebuild simgear from scratch, make clean;
make, then install it, then make clean; make in the FlightGear tree.
Yup, I tried this too, with metakit 2.4.2 (both with and without Erik's
suggestion of removing the #define bool int (which on gcc won't be
defined, but just to be sure...).
It still crashes.
Stepping through the code in gdb/ddd I saw the following:
In
inline bool fgSetDouble (const string name, double val)
{
return globals-get_props()-setDoubleValue(name, val);
}
The call to globals-get_props()-setDoubleValue(...) has stuff that
makes sense. But inside setDoubleValue the formal param relative_path is
null and that's where the seg fault comes from.
bool
SGPropertyNode::setDoubleValue (const string relative_path, double
value)
{
return getNode(relative_path, true)-setDoubleValue(value);
}
I'm sort of swamped right now, so I haven't taken this any further.
Sorry. Maybe this will be enough of a clue for someone else on the list.
Oh, I was building from CVS just fine until at least late last week, so
whatever is causing this happened relatively recently.
James
Regards,
Curt.
I poked around with gdb/ddd. Here's the stack from the core file:
#0 0x82e5204 in SGPropertyNode::getNode (this=0x0,
relative_path=@0xb2e0, create=true) at props.cxx:1290
#1 0x82e5c24 in SGPropertyNode::setDoubleValue (this=0x0,
relative_path=@0xb2e0, value=-110.6642444)
at props.cxx:1472
#2 0x8089d64 in fgSetDefaults () at fg_props.hxx:328
#3 0x80689d5 in fgInitConfig (argc=1, argv=0xb724) at
fg_init.cxx:219
#4 0x8059089 in mainLoop (argc=1, argv=0xb724) at main.cxx:1487
#5 0x805dd72 in main (argc=1, argv=0xb724) at main.cxx:1816
#6 0x4054b306 in __libc_start_main (main=0x805dd54 main, argc=1,
ubp_av=0xb724, init=0x804d4a4 _init,
fini=0x83a2a78 _fini, rtld_fini=0x4000d2dc _dl_fini,
stack_end=0xb71c)
at ../sysdeps/generic/libc-start.c:129
I tried various things, like not using my ~/.fgfsrc file, et c. but I
still get the seg fault.
Any one else see this?
Thanks,
James
--
__
James GallagherThe Distributed Oceanographic Data System
[EMAIL PROTECTED]
http://unidata.ucar.edu/packages/dods
Voice: 775.337.8612Fax: 775.337.2105
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--
Curtis Olson Intelligent Vehicles Lab FlightGear Project
Twin Cities[EMAIL PROTECTED] [EMAIL PROTECTED]
Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org
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--
__
James GallagherThe Distributed Oceanographic Data System
[EMAIL PROTECTED]
http://unidata.ucar.edu/packages/dods
Voice: 775.337.8612Fax: 775.337.2105
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