1 A very special thanks is due to the following people and groups.
3 Note: as hard as we've tried, it is impossible to perfectly maintain
4 this file. If you are aware of someone who you think should be
5 included here, PLEASE let me know. Projects like this are made
6 possible only by the help and hard work of others. I want to properly
7 credit everyone who has contributed to this project.
10 A1 Free Sounds <techie@mail.ev1.net> http://www.a1freesoundeffects.com
11 Granted permission for the flightgear project to use some of the
12 sound effects from their site.
16 Added clipping to 2d instruments. Added volume control to ATC-chatter.
17 Created and maintain: DHC2, B1900D, Aerostar 700, S76C+ helicopter,
18 Cessna Citation Bravo & CitationX, A6M2 'Zero'. Assisted with Cessna
19 Citation II with Curt and 777-200 with Justin Smithies.
22 Mark Akermann <flightgear@akermann.org>
23 Redone sun code. The sun now consists of three textures with individual
24 colors which are calculated based on the effect of light scattering.
25 This is accomplished by using various environmental data and by
26 calculating the distance the light travels through the atmosphere.
29 Raul Alonzo <amil@las.es>
30 Mr. Alonzo is the author of Ssystem and provided his kind permission
31 for using the moon texture. I also used parts of his code as a template
32 when adding the texture. Ssystem Homepage can be found at:
33 http://www1.las.es/~amil/ssystem
36 Michele America <nomimarketing@mail.telepac.pt>
37 Contributed to the HUD code.
40 Andrei Barbu "T"Eval" teval@myrealbox.com
41 Designed and implemented the current version of the FlightGear website.
44 Michael Basler <pmb@knUUt.de>
45 Author of the Getting Started guide.
48 Paul Beardsley <Beardspa@hotmail.com>
49 The 1903 Wright Flyer was inspired by a model contributed by Paul
50 Beardsley. Very little of the original model remains, but without
51 Paul's excellent work we might not have our own 1903 Flyer. Model
52 was reworked and retextured by Jim Wilson.
55 Jon S. Berndt <jon@jsbsim.org>
56 Chief architect of JSBSim, the default flight dynamics model (FDM)
57 for FlightGear. Jon's professional work has involved simulation and
58 prototyping for vehicles ranging from the F-16 to his current work
59 on the space shuttle and future manned launch vehicles. Since 1998
60 Jon has been working on creating JSBSim together with co-author Tony
61 Peden. JSBSim is an object-oriented, multi-platform aerospace
62 vehicle simulator that can be integrated with broader flight
63 simulation programs (since it provides no visual model), or run in a
64 standalone mode for batch runs. For more information, see the JSBSim
65 home page at: http://www.jsbsim.org
68 Paul Bleisch <pbleisch@acm.org>
69 Paul redid the "debug" system so that it would be much more flexible,
70 so it could be easily disabled for production system, and so that
71 messages for certain subsystems could be selectively enabled.
72 Also contributed a first stab at a config file/command line parsing
76 Jim Brennan <jj@kingmont.com>
77 Provided a big chunk of online space to store USA scenery for Flight Gear.
80 Bernie Bright <bbright@bigpond.net.au>
81 Many C++ style, usage, and implementation improvements.
82 STL portability, tons o' stuff. :-)
83 Threading support and threaded tile pager.
86 Bernhard H. Buckel <buckel@mail.uni-wuerzburg.de>
87 Contributed the README.Linux
88 Co-Author of the "Getting Started Manual"
91 Gene Buckle <geneb@deltasoft.com>
92 Gene has done a lot of work getting FG to compile with the MSVC++
93 compiler. Also, he has pushed, proded, and bugged me endlessly to
94 do my stuff right. (I mean that in a good way, because sometimes
95 when the little nudge in the right direction isn't working, I need
96 a good hard shove.) :-)
99 Ralph Carmichael <ralph@pdas.com>
100 Thanks to Ralph for his support of the FlightGear project. At
101 Public Domain Aeronautical Software you will find the PDAS CD-ROM for sale,
102 packed with great programs of use to aeronautical engineers. At this web
103 site there are also some sample downloads to show what is on the CD.
107 Didier Chauveau <chauveau@math.univ-mlv.fr>
108 Provided some initial code to parse the 30 arcsec DEM files found at:
109 http://edcwww.cr.usgs.gov/landdaac/gtopo30/gtopo30.html
112 John Check <j4strngs@rockfish.net>
113 Maintains the base package repository
116 New instrument panel configurations
119 Dave Cornish <dmc@halcyon.com>
120 Created our new, super cool, runway textures.
121 Created some of our cloud textures.
124 Oliver Delise <delise@mail.isis.de>
125 FAQ Maintainer, Documentation, Public Relations.
126 Author of (the now depreciated) networking / multi-user support.
127 Founder of the FlightGear MultiPilot Project :
128 http://www.isis.de/members/~odelise/progs/flightgear
131 Dave Eberly <eberly@magic-software.com>
132 Contributed some sphere interpolation code used by Christian Mayer's
133 weather data base system. Go to Dave's web site. He has a ton of
134 really useful looking code available there.
135 http://www.magic-software.com
139 Vector 2D, 3D, 4D and Matrix 3D and 4D inlined C++ classes. (Based on
140 Graphics Gems IV ed. Paul S. Heckbert)
141 http://www.animats.com/simpleppp/ftp/public_html/topics/developers.html
144 Francine Evans <evans@cs.sunysb.edu>
145 Wrote the @#$@#$@% GPL'd tri-striper we use and "love". :-)
146 http://www.cs.sunysb.edu/~evans/stripe.html
149 Oscar Everitt <bigoc@premier.net>
150 Created single engine piston engine sounds as part of an F4U package
151 for FS98. They are pretty cool and Oscar was happy to contribute
152 them to our little project.
155 Bruce Finney <bfinney@gte.net>
159 Melchior Franz <mfranz@aon.at>
160 Reworked the joystick driver detection code, added high/low support for "hats".
161 Nasal-ified the Saitek Cyborg Gold 3D (USB) joystick which now forms
162 the basis of a lot of programmable joysticks.
163 Ruthlessly hunted down memory leaks in FlightGear, SimGear, and JSBSim.
164 Maintains the only fully working helicopter model in FlightGear (Bolkow 105).
165 Made the GUI code fully XML configurable and added support for themes,
166 reworked property browser, route manager and several other dialogs.
167 Wrote Dynamic Cockpit View, Fly-By view and lots of other Nasal code.
168 Implemented Nasal "listeners".
171 Jean-loup Gailly and Mark Adler <zlib@gzip.org>
172 Authors of the zlib library. Used for on-the-fly compression and
173 decompression routines.
174 http://www.cdrom.com/pub/infozip/zlib/
177 Thomas Gellekum <tg@ihf.rwth-aachen.de>
178 Changes and updates for compiling on FreeBSD
181 Neetha Girish <neethagirish@usa.net>
182 Contributed the xml configurable HUD changes.
185 Jeff Goeke-Smith <jgoeke@voyager.net>
186 Contributed our first autopilot. (Heading Hold)
187 Better autoconf check for external timezone/daylight variables in
191 Michael I. Gold <gold@puck.asd.sgi.com>
192 Patiently answered my endless "newbie" OpenGL questions.
193 His effort alone has made me a great SGI fan.
196 Habibie <habibie@MailandNews.com>
197 RedHat package building changes for SimGear.
200 Dave Haskell <dave@haskell.demon.co.uk>
201 Original exterior textures for the Cessna 310 U-3A model. Only a few
202 minor modifications were made.
205 Mike Hill <mikehill@flightsim.com>
206 Contributed 3d aircraft models to our project.
207 http://www.flightsimnetwork.com/mikehill/home.htm
210 Erik Hofman <erik@ehofman.com>
211 Major overhaul and parameterization of the sound module, to allow
212 aircraft-specific sound configuration at runtime.
213 Did a lot of code improvements and bug-hunting.
214 Creator of most of the ground textures.
215 Maintainer of the F-15, F-16, F-104, T-37, PC-7, Fokker 50 and 100 models.
216 Keeps the Irix port current.
217 Localization support.
220 Charlie Hotchkiss <clhotch@pacbell.net>
221 Worked on improving and enhancing the HUD code.
222 Lots of code style tips and code tweaks ...
225 Bruce Jackson of NASA <e.b.jackson@larc.nasa.gov>
226 Developed the LaRCsim code under funding by NASA which we use to provide
227 the flight model. Bruce has patiently answered my many, many questions.
228 http://dcb.larc.nasa.gov/www/DCBStaff/ebj/ebj.html
231 Maik Justus <fg@mjustus.de>
232 Developed YASim's helicopter/rotor logic.
233 Implemented aerotowing, water plane and anchor support for YASim, and
234 made its gear aware of the surface material.
235 Wrote the Bo105 helicopter FDM configuration file.
239 Debian packaging of SimGear/FlightGear
242 Richard Kaszeta <bofh@me.umn.edu>
243 Contributed screen buffer to ppm screen shot routine.
244 Rich has also helped in the early development of the Flight Gear "altitude
245 hold autopilot module" by teaching Curt Olson the basics of Control Theory
246 and helping him code and debug early versions. Curt's "Boss" Bob Hain
247 also contributed <bob@me.umn.edu>. Further details available at:
248 http://www.menet.umn.edu/~curt/fgfs/Docs/Autopilot/AltitudeHold/AltitudeHold.html
249 Rich's Homepage: http://www.menet.umn.edu/~kaszeta
252 Vassilii Khachaturov <vassilii@tarunz.org>
253 Support of navaids as autopilot waypoints.
254 Switching the tower view to a different tower at any time.
255 Various code, GUI, and documentation fixes and updates.
258 Tom Knienieder <tom@knienieder.com>
259 Ported Steve's Audio library first to OpenBSD and IRIX and
260 after that also to Win32
263 Reto Koradi <kor@mol.biol.ethz.ch>
264 Helped me get on track with setting up fog effects.
265 http://www.mol.biol.ethz.ch/wuthrich/people/kor
268 Bob Kuehne <rpk@who.net>
269 Redid the Makefile system so it is simpler and more robust.
272 Chris Lampard <c.lampard@ntlworld.com>
273 Original exterior geometry for the Cessna 310 U-3A model. Several
274 modifications made but most of the exterior is as is converted from
275 Chris's original. The interior cockpit was added by Jim Wilson.
278 David Luff <david.luff@nottingham.ac.uk>
279 Contributed heavily to the IO360 piston engine model.
280 Created the ATC intelligent traffic subsystem.
281 Creator of TaxiDraw, a program to modify the taxiway layout
285 Lewis Magruder <blackhawk96@hotmail.com>
286 Original A-4 Blue Angels exterior model and textures. Lewis's work
287 is pretty much as converted from the original. The interior cockpit
288 was added by Jim Wilson.
291 Christian Mayer <flightgear@christianmayer.de>
292 Working on a multi-lingual conversion tools for fgfs
293 as a demonstration of technology ;-)
294 Contributed code to read msfs formated texture files.
295 Working on a completely new weather subsystem.
296 Working on a balloon simulator.
299 David Megginson <david@megginson.com>
300 Contributed a patch to allow mouse input to control the yoke.
301 Contributed financially towards hard drive space for use by the
303 Updates to README.running.
304 Working on getting fgfs and ssg to work without textures.
305 Also added the new 2D panel and the save/load support.
306 Reorganization of the GUI to make it XML configurable.
308 Generalized input module
309 3D model animation module
310 initial take of sound-effects module
311 Random ground cover objects
312 Vacuum and pitot systems.
315 Eric Mitchell <mitchell@mars.ark.com>
316 Contributed some topnotch scenery textures. His textures were
317 all original creations.
320 Cameron Moore <cameron@unbeatenpath.net>
323 Self-proclaimed code janitor.
327 Anders Morken <amrken@online.no>
328 Maintained the European mirror of the FG web pages.
329 Unfortunately this mirror has been taken down due to reglementation
330 changes including an enforcement to 10 MB space per subscriber limit
331 which was way too small for the evergrowing FGFS Project's Files.
332 He'd be happy to maintain a new one if he could find a place to put it,
333 so if you have an idea, contact him!
336 Alan Murta <amurta@cs.man.ac.uk>
337 http://www.cs.man.ac.uk/aig/staff/alan/software/
338 Created the Generic Polygon Clipping library
341 Phil Nelson <phil@cs.wwu.edu>
342 Author of GNU dbm. gdbm is a set of database routines that use
343 extendible hashing and works similar to the standard UNIX dbm routines.
346 Alexei Novikov <anovikov@heron.itep.ru>
347 Created European Scenery
348 Contributed a script to turn fgfs scenery into beautifully rendered
350 Contributed a first draft of a scenery creation howto.
353 Curt Olson <http://www.flightgear.org/~curt>
354 Curt is responsible for overall project and source code management.
355 He has his hands in many of the areas, but is primarily responsible
356 for the scenery subsystem, as well as much of the infrastructure in
358 Handles most parts of the regular scenery rebuild, including lots of
359 improvements of the vertex calculation code.
360 Added the nw PID based, configurable autopilot code.
361 Added the Electrical system.
362 Added Runway lighting.
366 His TR Library: http://www.mesa3d.org/brianp/TR.html
367 And also Mesa of course: http://www.mesa3d.org
370 Tony Peden <apeden@earthlink.net>
371 Contributions on the flight model front, including a LaRCsim based
372 Cessna 172. JSBsim: the initial conditions code, a more complete
373 standard atmosphere model, and other bugfixes/additions.
376 Robin Peel <robin@cpwd.com>
377 Maintains the ever growing worldwide airport, runway, and navigation
378 aid database for the Flight Gear project as well as for X-Plane.
381 Alex Perry <alex.perry@ieee.org>
382 Contributed code to more accurately model VSI, DG, Altitude.
383 Contributed to the Install and Getting Started manual.
386 Friedemann Reinhard <mpt218@faupt212.physik.uni-erlangen.de>
387 Contributed beginnings of a textured instrument panel.
390 Frederic Bouvier <frbouvi@wanadoo.fr>
391 Added French language support
392 Keeps FlightGear MSVC compatible.
393 Did a number of code changes to improve the animation code.
394 Added a number of animations that improves the visual system quite a lot.
395 Did a nice job populating the San Francisco bay area by adding a lot
399 Petter Reinholdtsen <pere@games.no>
400 Incorporated the Gnu automake/autoconf system (with libtool).
401 This should streamline and standardize the build process for all
402 Unix-like platforms. It should have little effect on IDE type
403 environments since the don't use the Unix make system.
406 William Riley <riley@technologist.com>
407 Contributed code to add "brakes".
408 Patch to support a first joystick with more than two axes.
409 World scenery based on vmap0 data.
412 Andy Ross <andy@plausible.org>
413 Contributed a new configurable FDM, "YASim", based on geometry
414 information rather than aerodynamic coefficients.
415 Added support for placing 2D panel objects in 3D space.
416 Modified the HUD code to make it more accurate and added 3D support.
417 Modified the UI code to allow a far more flexible grouping system.
418 Added the Nasal scripting language and added FlightGear integration.
421 Paul Schlyter <pausch@saaf.se>
422 Mr. Schlyter provided Durk Talsma with all the information
423 he needed to write the astro code. Mr. S. is also willing
424 to answer astro-related questions whenever one needs to.
425 http://welcome.to/pausch
428 Chris Schoeneman <crs@millpond.engr.sgi.com>
429 Contributed some 3d sound playing code for Irix, Win32, and Linux
430 It is unclear if this code will be used directly, but it certainly
431 will have an influence on the development of our own audio library.
434 Phil Schubert <philip@zedley.com>
435 Contributed various textures and engine modelling.
436 http://www.zedley.com/Philip/index.htm
439 Jonathan R Shewchuk <Jonathan_R_Shewchuk@ux4.sp.cs.cmu.edu>
440 Author of the Triangle program. Triangle is used to calculate the
441 Delauney triangulation of our irregular terrain.
444 Gordan Sikic <gsikic@public.srce.hr>
445 Contributed a cherokee flight model for LaRCsim.
446 Currently is not working and needs to be debugged.
447 Use configure --with-flight-model=cherokee
448 to build the cherokee instead of the navion.
451 Michael Smith <msmith99@flash.net>
452 Contributed cockpit graphics, 3d models, logos, and other images.
453 Project Bonanza - http://members.xoom.com/ConceptSim/index.html
456 Martin Spott <Martin.Spott@uni-duisburg.de>
457 Contributed to the installation / user guide.
460 Martin Dressler <dr@musicabona.cz>
461 Created some outstanding panel instrumentation textures
462 for use in full-screen mode.
465 U.S. Geological Survey
466 Provided geographic data used by this project
467 http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html
470 Durk Talsma <d.talsma@chello.nl>
471 Accurate Sun, Moon, and Planets.
472 Sun changes color based on position in sky.
473 Moon has correct phase and blends well into the sky.
474 Planets are correctly positioned and have proper magnitude.
475 Help with time functions, gui, and other misc stuff.
476 Added the AirTraffic module for scheduled AI airliners and other aircraft.
477 2D Cloud layers (nifty).
478 http://people.a2000.nl/dtals
481 UIUC - Department of Aeronautical and Astronautical Engineering
482 Contributed modifications to LaRCsim to allow loading of aircraft
483 parameters from a file. These modifications were made as part of an
484 icing research project.
486 Did the coding and made it all work:
487 Jeff Scott <jscott@students.uiuc.edu>
488 Bipin Sehgal <bsehgal@uiuc.edu>
489 Michael Selig <m-selig@uiuc.edu>
491 Helped support the effort
492 Jay Thomas <jthomas2@uiuc.edu>
493 Eunice Lee <ey-lee@students.uiuc.edu>
494 Elizabeth Rendon <mdfhoyos@md.impsat.net.co>
495 Sudhi Uppuluri <suppulur@students.uiuc.edu>
498 Mark Vallevand <Mark.Vallevand@UNISYS.com>
499 Contributed some METAR parsing code.
500 Contributed some win32 screen printing routines.
503 Gary R. Van Sickle <tiberius@braemarinc.com>
504 Contributed some initial GameGLUT support and other fixes.
505 Has done some interesting preliminary work on a binary file format
506 http://www.woodsoup.org/projs/ORKiD/fgfs.htm
508 Has set up a 'Cygwin Tips' site that has been very helpful to many
509 people in getting a Cygwin Unix-on-Windows build environment set up
510 so they can build FG effectively.
511 http://www.woodsoup.org/projs/ORKiD/cygwin.htm
514 Norman Vine <nhv@yahoo.com>
515 Provided more than uncountable URL's to the "FlightGear Community".
516 Many performance optimizations throughout the code.
517 Many contributions and much advice for the scenery generation section.
518 Lots of windoze related contributions.
519 Contributed wgs84 distance and course routines.
520 Contributed a great circle route autopilot mode based on wgs84 routines.
521 Many other GUI, HUD, and autopilot contributions.
522 Contributed a patch to allow mouse input to control view direction.
523 Ultra hires tiled screen dumps.
524 Contributed the initial 'goto airport' and 'reset' functions
525 Contributed the initial http image server code
526 Did the build instructions for OpenAL (and SDL) for Cygwin.
529 Roland Voegtli <voegtli@sanw.unibe.ch>
530 Great photorealistic textures.
531 Founder of European Scenery Project for X-Plane
532 http://www.g-point.com/xpcity/esp/
535 Carmelo Volpe <carmelo.volpe@mednut.ki.se>
536 Contributed some work to porting Flight Gear to the Metro Works
537 development environment (PC/Mac)
540 Darrell Walisser <dwaliss1@purdue.edu>
541 Contributed a large number of MacOS changes and has somehow managed
542 to get a pile of code written by a bunch of people who've never seen
543 a Mac to compile and run on said platform.
544 Provides MacOS-specific info in the docs.
547 Davud Culp <davidculp2@attbi.com>
548 Changed the layout of the conbtrolls section and added a great number
549 of extra controls which will prove to be usefull no and for the future.
550 Contributed a number of aircraft configuration files, including a T-38 and
552 Implemented the AIModels subsystem (originally based on the ATC traffic code)
553 and extended it to support ships, aircraft, ballistic objects, thunder-storms,
555 Added a lot of updated to JSBSIm, esp. for the turbine section.
558 Ed Williams <Ed_Williams@compuserve.com>
559 Contributed magnetic variation code (impliments Nima WMM 2000)
560 We've also borrowed from Ed's wonderful aviation formulary at various
562 http://www.best.com/~williams/index.html
565 Jim Wilson <jimw@kelcomaine.com>
566 Wrote a major overhaul of the viewer code to make it more flexible
567 and modular. Contributed many small fixes and bug reports.
568 Contributed the the pui property browser.
569 Contributed to the autopilot.
570 Created several excellent 3D aircraft models, including the p-51,
571 Wright Flyer and the Boeing 747.
574 Jean-Claude Wippler <jcw@equi4.com>
575 Author of MetaKit - a portable, embeddible database with a portable
576 data file format. This software is not GPL'd but the author is kindly
577 allowing us to bundle MetaKit with our code. MetaKit has a liberal
578 X/MIT-style license. Please see the following URL for more info:
579 http://www.equi4.com/metakit
582 John Wojnaroski <castle@mminternet.com>
583 Open Glass Cockpit project
587 Lee Elliot <leee@spatial.freeserve.co.uk>
588 Author of the YF-23, A-10, Ann225, B-52 and TSR-2 models.
589 Did a lot of suggestions for better aircraft modelling, some of which
590 resulted in code changes to accomplish them.
593 Innis Cunningham <innisc@hotmail.com>
594 Modelled the 737 and contributed to the T38.
597 Vivian Meazza <vivian.meazza@lineone.net>
598 Added a number of excellent aircraft models including the Hawker Hunter
600 Provided realistic wind, gravity and drag calculations for AIBallistic models,
601 as well as terrain intersections (impacts) of submodels.
602 Added the Fresnel Lens Optical Landing System and AI code for AICarrier and
603 AIShip, and implemented the TACAN navigation instrument
606 David Culp <davidculp2@comcast.net>
607 Added the AI model and scenario code which allows non interactive models
608 (like aircraft, ships, ballistic models, storms and thermals) to move
609 around the scenery in a predefined way. Every model can have it's own
610 special characteristics. The thermal model for instance is a non-visible
611 model that creates an updraft around it's center.
614 Mathias Fröhlich <Mathias.Froehlich@gmx.net>
615 Implemented the groundcache code which made it possible for aircraft
616 to follow the ground precisely and, as a result, made it possible to
617 land on aircraft carriers.
618 Modified YASim, JSBSim and LaRCsim to support the groundcache code.
619 Reorganized the code to eliminate the viewer jitter for close by objects.
622 Harald Johnsen <hjohnsen@evc.net>
623 Added a new 3D cloud implementation which also works on big-endian machines.
624 This code allows for clouds of any types and any shapes (and even deformation
626 Implemented volumetric shadowing.
629 Roy Vegard Ovesen <rvovesen@tiscali.no>
630 Implemented the KAP140 autopilot.
631 Added a generic, XML configurable, autopilot framework.
632 Added an Altitude encoder.
634 Made the instruments code much more configurable, it is now possible to only
635 include instruments that are actually present.
636 Added several high level, configurable filter implementations for use by
640 Stuart Buchanan <stuart_d_buchanan@yahoo.co.uk>
641 Substantial additions to the Getting Started Manual
642 Enhancements to the Cessna-310 3d model.
643 Added a generic yoke model, a generic throttle quadrant model and a
644 generic pedal set model.
647 Stefan Seifert <nine@detonation.org>
648 Added the save-on-exit option to save the user preferences at program exit.
651 Space Imaging, Inc http://www.spaceimaging.com/
652 Space Imaging has allowed us to use the images in their archive for
653 commercial and non-commercial use, provided the original image can't be
654 extracted from the textures.
655 Some (if not all) of the best textures in use by FlightGear wouldn't be
656 possible without the satellite images provided by them.
659 Airservices Australia
660 Duncan McCreanor and Diarmuid Tyson created a multiplayer engine for
661 FlightGear when putting together a demonstration to show the possibilities
662 of using Flightgear as the basis for an Air Traffic
665 SkyscraperPage.com http://skyscraperpage.com
666 SkyscraperPage.com has allowed us to use their building diagrams to
667 make textures and 3d models of their buildings.
670 WoodSoup Project http://www.woodsoup.org
671 [ FlightGear no longer uses woodsoup services, but we appreciate
672 the support provided to our project during the time they hosted us. ]
673 Provided computing resources and services so that the Flight Gear
674 project could have real home. This includes, web services,
675 ftp services, shell accounts, email lists, dns services, etc.
678 Robert Allan Zeh <raz@cmg.FCNBD.COM>
679 Helped me tremendously in figuring out the Cygnus win32 compiler and
680 how to link with .dll's. With out him the first runable win32
681 version of FG would have been impossible.
688 THIS DOCUMENT WAS INITIALLY WRITTEN BY
690 Curt L. Olson <http://www.flightgear.org/~curt>
693 THE CONTENTS WERE LASTLY RESEARCHED AND UPDATED MARCH, 8 2000
695 Oliver Delise <delise@mail.isis.de>
698 Updated 2001-12-11 by David Megginson, david@megginson.com
701 Updated 2005-04-02 by Erik Hofman, erik@ehofman.com