re: [Flightgear-devel] property-api.html

2002-12-30 Thread David Megginson
docs/ directory; perhaps the old contents were discarded with the 0.7 tree. Fortunately, the full document appears in the message you're referring to. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgea

Re: [Flightgear-devel] ATC Sound

2002-12-30 Thread David Megginson
Erik Hofman writes: > You could try this patch and play with the numbers a bit. > This piece of text might explain why I don't see the problem: > +audio_mixer->setBass(50); > +audio_mixer->setTreble(50); > + No noticeable difference. All th

re: [Flightgear-devel] c172p-3d - checked against a Cessna 172E

2002-12-31 Thread David Megginson
; for a lot of it. The "seat of the pants" feel that you have when flying > the real aircraft covers up most of the effects. Thank you very much for doing the test and posting the results. I did tone down the behaviour; after looking at your test, perhaps I toned it down too far.

re: [Flightgear-devel] c172p-3d - checked against a Cessna 172E

2002-12-31 Thread David Megginson
Luke Scharf writes: > I'll take any excuse to flying on a nice VFR day! :-) I'd like one of those here. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EM

re: [Flightgear-devel] Simgear cvs hung up

2002-12-31 Thread David Megginson
nately, the permissions won't let anyone else read the directory until Curt gets back online and fixes things up -- I don't have shell access to the CVS machine. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ __

re: [Flightgear-devel] Simgear cvs hung up

2002-12-31 Thread David Megginson
y anyway just to be safe. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel

[Flightgear-devel] Problem: unrealistic YASim stalls

2003-01-01 Thread David Megginson
he ability to model cross-controlled approach stalls, but we need to get the other stalls right as well. Skyhawks and Cherokees are very forgiving planes, or else many fewer low-time pilots would live to become high-time pilots. All the best, David -- David Megginson, [EMAIL PROTECTED],

Re: [Flightgear-devel] Problem: unrealistic YASim stalls

2003-01-01 Thread David Megginson
id, depending on how the simulated aircraft is loaded. > > How is the model in question balanced? We have it loaded and balanced in or near utility, I think. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ __

Re: [Flightgear-devel] Problem: unrealistic YASim stalls

2003-01-01 Thread David Megginson
at=200lb,baggage=400lb > and then do crazy things in the simulated aircraft. Yes, it is possible, but it's complicated and a big FDM-specific right now. I agree that it would be a good learning experience to let people try flying with, say, the CG way too far aft. All the best, David

Re: [Flightgear-devel] PA28-161 Piper Cherokee Warrior II

2003-01-01 Thread David Megginson
Curtis L. Olson writes: > Returning from out of town, I am no longer able to build the cvs > version of FlightGear (gcc-2.95.something). Here is the error I'm > seeing: OK, it looks like an STC issue. I can code around it. All the best, David -- David Megginson, [E

Re: [Flightgear-devel] PA28-161 Piper Cherokee Warrior II

2003-01-01 Thread David Megginson
David Megginson writes: > OK, it looks like an STC issue. I can code around it. That should be STL. You can see where my head is these days (an STC is a supplementary type certificate that allows modifications to a plane). All the best, David -- David Megginson, [EMAIL PROTECTED], h

Re: [Flightgear-devel] easyxml

2003-11-17 Thread David Megginson
Seamus Thomas Carroll wrote: I figured out the what you mention. The part that confuses me is how to put the data from the xml file in a desired location. For example if I have the xml document: ... 1 -128.553223 54.233123 ... How does id, lon, lat initialize the variables int id, dou

Re: [Flightgear-devel] DC3-Cockpit

2003-11-19 Thread David Megginson
Erik Hofman wrote: http://home.arcor.de/iljamod/fg/dc3.tar.gz This looks very nice! If David agrees we should add this to CVS. I haven't looked at it yet, but no objections anyway. All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED

Re: [Flightgear-devel] easyxml

2003-11-19 Thread David Megginson
Seamus Thomas Carroll wrote: Is it possible to then parse buffer using the property-tree code? I am looking at void readProperties( istream &input, SGPropertyNode *start_node, const string &base ) but i dont understand what the base is for. You could pass it an istringstream wrapped around the

Re: [Flightgear-devel] Easy-XML

2003-11-21 Thread David Megginson
Andy Ross wrote: I'd strongly suggest using the property tree parser. Me too, simply because it's at least an order of magnitude easier. However, I suspect that Jon wants to use EasyXML for parsing the coefficients, and I have to admit that the property-tree format will be fairly verbose for m

[Flightgear-devel] Carrier taxi

2003-11-21 Thread David Megginson
Here's a simple command-line to start lined up for takeoff on the Saratoga aircraft carrier: fgfs --lon=-122.575412 --lat=37.726849 Unfortunately, all is not happy. A full-speed takeoff results in strange problems, so try a slow taxi to the ramp (say, 1000 rpm). The nosewheel sinks in abou

Re: [Flightgear-devel] Is the world round or flat ?

2003-11-22 Thread David Megginson
Danie Heath wrote: I just wanna find out how Simgear actually works. Does it generate the world as a sphere, or as a flat world ? An irregular WGS84 spheroid, I think, which is more accurate than either flat or spherical. All the best, David ___ Fl

[Flightgear-devel] Helicopters: wow!

2003-11-22 Thread David Megginson
I just tried flying the bo105 around Ottawa a bit: FlightGear has made an incredible amount of progress over the past few weeks. All of the jitters in the heli flight model are gone, the 3D interior looks great (though it needs a bit of instrumentation -- I'm using the HUD for now), and the sou

[Flightgear-devel] Human conquers helicopter

2003-11-22 Thread David Megginson
Finally. On the roof, with the engine shut down, after taking off from a nearby airport: http://www.megginson.com/flightsim/roof.jpg Airspeed management is very different in a helicopter than in a plane -- I'm still trying to get a handle on it. By the way, I always have to put on the parki

Re: [Flightgear-devel] Human conquers helicopter

2003-11-22 Thread David Megginson
Jim Wilson wrote: Pull back on the cyclic stick. Depending on what speed you are going dropping collective too. I like to swoop down to create some downward momentum and then pull back. I'm not sure if this is a legal move :-), but if you are going really fast and want to stop quickly, pull th

Re: [Flightgear-devel] Human conquers helicopter

2003-11-22 Thread David Megginson
Jim Wilson wrote: Yep, it is a feel, how much collective lift to add. The thing that usually screws me up is the tail rotor when hovering. In general the rudder control on my X45 sucks, partially because it is my left hand and I'm very right handed, but also because it is a rocker. How are the

Re: [Flightgear-devel] Human conquers helicopter

2003-11-22 Thread David Megginson
Andy Ross wrote: Never mind. Someone already added a "skid" attribute to the parser (or maybe I did long ago and forgot). Just set skid="1" on the gear objects and remove the brake mappings from the property tree. Done. All the best, David ___ Fligh

Re: [Flightgear-devel] Helicopters: wow!

2003-11-23 Thread David Megginson
[EMAIL PROTECTED] wrote: Hello, I allways wanted to fly the helicopter but i don't know how to start the engines. I pressed every key kombination but still no luck. If you have the latest CVS of FlightGear and the base package, it should start with the helicopter engine running: fgfs --aircra

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-23 Thread David Megginson
[EMAIL PROTECTED] wrote: Because of my german keyboard layout i needed to press the ALT+0 key to get the "}" key pressed, that was a little irritating for me, because i looked for the corresponding german key by the key location and not by the key character, but that didn't work of course. FYI th

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-24 Thread David Megginson
[EMAIL PROTECTED] wrote: But i noticed by using the current CVS version, that the engines where off after pressing the reset button in the fg menu. Yes, reset and save/restore are a bit broken in FlightGear right now. I'll try to fix them when I have a chance, but it will require a bit of ref

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-24 Thread David Megginson
Curtis L. Olson wrote: I definitely need the functionality to set up various initial positions; in the air, on the ground, relative to different objects, different headings, initial velocity, etc. etc. We can accomplish the same thing simply by saving a copy of part or all of the property tree an

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-24 Thread David Megginson
Curtis L. Olson wrote: We can accomplish the same thing simply by saving a copy of part or all of the property tree and then reverting to it, without creating a separate, parallel hierarchy of properties for initial conditions. In this scheme, how would you specify initial conditions? You'd sti

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-24 Thread David Megginson
Curtis L. Olson wrote: If the sim is running, wouldn't you be competing with the FDM? Wouldn't it be cleaner to keep a separate area for initial conditions so you can specify them at your leisure, and then "commit" when you are ready? Otherwise if we are writing into the main property tree, it se

[Flightgear-devel] Shut up, already!

2003-11-24 Thread David Megginson
Reading Eric Raymond's excellent new book, The Art of Unix Programming, reminded me of the importance of programs staying quiet unless (a) they have something critically important to say (i.e. "help, I'm about to die"), or (b) the caller explicit asks them to be noisy. Of all the programs I nor

Re: [Flightgear-devel] Re: Helicopters: wow!

2003-11-24 Thread David Megginson
Jim Wilson wrote: FWIW I'm not that crazy about switching aircraft mid flight, but I suppose it could be done easily enough. Anyone for a piper cub going 270kias @ 4ft? That sounds great. Can you animate the fabric tearing off the wings? All the best, David ___

Re: [Flightgear-devel] Shut up, already!

2003-11-24 Thread David Megginson
Andy Ross wrote: 1. The default log level is now FG_ALERT, or at least, it's supposed to be (though some FG_WARN messages inexplicably still get through). What about the presumptively "useful" stuff like the JSBSim touchdown report or YASim solution data? Would it be a good idea to split out

[Flightgear-devel] Latest stupid helicopter trick

2003-11-24 Thread David Megginson
Here's another fun landing: http://www.megginson.com/flightsim/water-tower.jpg The hard part, for me, is watching the ground close to the helicopter when I'm close to the hover. In real life, when I'm flaring for a landing, I'm usually focussing on the far end of the runway, perhaps a mile or

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-24 Thread David Megginson
Andy Ross wrote: Out of curiosity, how do pilots do this in real helicopters? I wouldn't think a traditional ASI would work very well at 10 kts... You could probably build one that did -- after all, the aenemometers that weather stations use can register down to less than 5 kt. Still, I'm gue

Re: [Flightgear-devel] Re: Latest stupid helicopter trick

2003-11-24 Thread David Megginson
Melchior FRANZ wrote: Before you get too accustomed to the current fgfs bo105, there's a little detail that I got wrong: Tthe pilot sits at the right side in a real bo. :-) Yes, I know -- I thought about editing the config file, but didn't get around to it (at least not yet). All the best, Dav

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-25 Thread David Megginson
Maik Justus wrote: Also the rolling tendency in translational lift is missing. That is a very complicate thing. Allways if I think about I run into confusion. Is it just a gyroscopic effect? All the best, David ___ Flightgear-devel mailing list [EMAIL

[Flightgear-devel] Golden Silence

2003-11-25 Thread David Megginson
I've just hit a milestone in eliminating unnecessary output from FlightGear. I started a flight with the default airport and C172p, took off, climbed to about 20 ft, landed, stopped, shut down the engine, and quit the program, all without a single line of output on the console. Here's the be

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-25 Thread David Megginson
Maik Justus wrote: It is very unrealistic. But you can change this very easiely. Just remove the notorque="true" tags in the bo105.xml file (or write notorque="false"). You should also change the min- and maxcollective of the tail rotor to be unsymmetric (I don't have the original values, I can ju

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-25 Thread David Megginson
Andy Ross wrote: And since the rotor is spinning, it produces all sorts of non-intuitive behavior like the 90° precession phase shift (try to roll it left, it tilts forward, etc...). It's ugly. :) This one happens with single-engine airplanes as well. If you yank the nose up suddenly, you get a

Re: [Flightgear-devel] Golden Silence

2003-11-25 Thread David Megginson
Andy Ross wrote: Other than the solution output, YASim doesn't generate any text at runtime. The core files don't include anything from the FlightGear tree at all, actually. There might be a stray printf or two, though... I tested YASim with the J3 Cub and it produced no console output at all.

Re: [Flightgear-devel] Helicopter: First Impressions

2003-11-25 Thread David Megginson
Maik: I just checked in modified versions of Rotor.cpp and RotorPart.cpp, converting the printf debugging statements to SG_LOG. All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flight

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-25 Thread David Megginson
Maik Justus wrote: Yes, it is a bit more work flying with those changes. Do you mind if I check them in? For me it's ok, but remember, that you than need pedals (or another analog controller for this axis) to fly helo. The mouse does fine as an analog controller for the rudder -- I use it often

Time to Refactor (was Re: [Flightgear-devel] Re: Nasal integration docs)

2003-11-26 Thread David Megginson
Melchior FRANZ wrote: This and your examples (mouse handling, etc.) have totally won me over! I've already written my first nasal script I haven't had time to play with NASAL yet, but now that it's integrated and people seem to like it, it's probably time to start refactoring FlightGear a bit.

Re: [Flightgear-devel] Re: Time to Refactor (was Re: Nasal integration docs)

2003-11-26 Thread David Megginson
Melchior FRANZ wrote: Not exactly what you meant, but I've written a syntax definition file for vim that displays nasal scripts with colored syntax -- for easier editing: http://members.aon.at/mfranz/nasal.vim (See ":help new-filetype" in vim for how and where to install it.) Great. Let me know w

Re: [Flightgear-devel] FG logo Slovenian flag

2003-11-27 Thread David Megginson
Erik Hofman wrote: Here's an idea ... now that FlightGear is deathly quiet, I can't tell if FlightGear is doing anything when it is starting up or if my machine has hung. Maybe we could make a progress bar out of the flags of all the countries of people that have contributed to FlightGear. (?) I

[Flightgear-devel] Airport Dialog

2003-11-27 Thread David Megginson
Good news: I've just added a dialog box for selecting a new airport from a scrolling list. Bad news: the JSBSim 172 flips upside-down whenever I switch airports. All the best, David ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flig

Re: [Flightgear-devel] Latest stupid helicopter trick

2003-11-30 Thread David Megginson
Jim Wilson wrote: Thanks. It was a crash the first try. First I got into a lot of circling around trying to figure where to land and how to approach it. This resulted in quite a few near misses with the buildings. As someone with no helicopter experience, I'll guess that you want to approach d

Re: [Flightgear-devel] Playing with textures

2003-12-01 Thread David Megginson
Paul Surgeon wrote: I'm sure there will be protesters but this "polygonal" looking scenery is not very nice in my opinion. Yes it works but it doesn't even begin to resemble real life scenery. Out of curiosity has anyone ever used TerraScene? (synthetic scenery generation app for Fly! and Fly!2

Re: [Flightgear-devel] Playing with textures

2003-12-02 Thread David Megginson
Paul Surgeon wrote: Yeah that's because the scenery is pre-rendered. Who said we have to pre-render the scenery? :) Rendering in real time would only require a library of geodata which would be similar in size to the current FG scenery. In that case, it wouldn't look like TerraScene scenery --

Re: [Flightgear-devel] VOR

2003-12-02 Thread David Megginson
Curtis L. Olson wrote: Looking in the code, if I understand your request correctly, you may want: /radios/nav[%d]/radials/actual-deg No, that is not the right solution. What he needs is a delta between the inverse of the current VOR radial and the indicated heading on the RMI, normalized to

Re: [Flightgear-devel] VOR

2003-12-02 Thread David Megginson
Innis Cunningham wrote: Anything I ever saw in 707's thru to 767's looked pretty rock solid to me. But I may be wrong. It may have been driven by an FMS in that case, which would be taking input from INS, LORAN, DME, GPS, etc. What's your experience in those planes? There is no way to get direc

Re: [Flightgear-devel] Model questions

2003-12-02 Thread David Megginson
Curtis L. Olson wrote: I would recommend using even smaller sized textures if you can. Right -- keep it to 64x64 or 64x32 whenever possible. There will be some special cases (such as the Statue of Liberty or Big Ben) where we want a more detailed texture, so going light on other buildings saves

Re: [Flightgear-devel] Playing with textures

2003-12-02 Thread David Megginson
Paul Surgeon wrote: A corridor 100 km wide between Chicago (Illinois) and London (UK) (6378 km) would require about 311 GB of storage space using S3TC compression with a texture resolution of 1 meter/pixel. Probably half, that, actually, since a lot of the trip is over ocean. All the best, Dav

Re: [Flightgear-devel] VOR

2003-12-03 Thread David Megginson
Innis Cunningham wrote: There is no way to get directional information to a VOR; instruments like an RMI have to fake it by comparing the current radial (which can already be very different from the magnetic [or in the north, true] bearing from the station). Without looking up my notes I would

Re: [Flightgear-devel] VOR

2003-12-03 Thread David Megginson
Curtis L. Olson wrote: As I understand it, the VOR needle swings right and left. If you beyond (10?) degrees of the selected radial, the needle will always stay pegged to one side. The needle will move if you are within (10?) degrees of the selected and it will show you which side you are on and

Re: [Flightgear-devel] (OT) Kid's day at work

2003-12-03 Thread David Megginson
Curtis L. Olson wrote: Nope, it turns out that bathrooms are typically only on things like 737's and DC-9's and stuff. Smaller planes have them as well -- on small business jets and turboprops, one of the seats cushions often lifts up to reveal a small toilet, with a curtain that you can pull ar

Re: [Flightgear-devel] What is the camera angle in flightgear?

2003-12-05 Thread David Megginson
Seamus Thomas Carroll wrote: The reasone I would like to know is given an altidude above the ground and a picture taken at that altitude I would like to know how much ground the picture covers. It's controlled by a property, but I find that usually 8-12 degrees down is realistic for most of our

Re: [Flightgear-devel] DC-3 3d cockpit

2003-12-05 Thread David Megginson
[EMAIL PROTECTED] wrote: 1. The trim wheel looks in AC3D like this: http://home.arcor.de/iljamod/object_in_ac3d.jpg, but in FlightGear it is just an ugly object: http://home.arcor.de/iljamod/dc3-throttle-bug.jpg The orange mixture stick doesn’t look correct too. That's a plib bug -- any vertic

Re: [Flightgear-devel] Select airport broken?

2003-12-05 Thread David Megginson
Paul Surgeon wrote: Is the "Select airport from list" menu item supposed to work? I get a segmentation fault everytime I try using it. The list works, but warping to a different airport doesn't. I usually end up with a plane flipped upside-down. All the best, David ___

[Flightgear-devel] NMEA *out* to a Garmin

2003-12-06 Thread David Megginson
Does anyone know if it's possible for a Garmin GPS to take its position information from external NMEA input, rather than just broadcasting the position as NMEA output? I wanted to experiment with using my (brand-new) Garmin 196 slaved to FlightGear, but I have not had much luck yet. This wor

Re: [Flightgear-devel] NMEA *out* to a Garmin

2003-12-07 Thread David Megginson
Jon Stockill wrote: Have you tried it in demo mode? In that mode it doesn't use any input from the receiver, and it's actually possible to set the position moving using the arrow keys on the map screen - if there's any mode likely to take input from NMEA then this will be the one. I tried it in si

[Flightgear-devel] Greetings from Philadelphia

2003-12-07 Thread David Megginson
I flew down to Philadelphia from Ottawa today, though unbelievably favourable conditions: the trip is almost due N->S, and since the low that dumped all the snow has moved east, I had ferocious tailwinds at altitude from the retreating side of the system. I throttled back to 65% power (and som

Re: [Flightgear-devel] [OT re] Perthon -- Python to Perl Language Translation

2003-12-10 Thread David Megginson
Jonathan Richards wrote: Interesting - I don't often see two (purportedly) equivalent pieces of code together like that. I put both examples into files: the python is 668 bytes, whereas the perl is 1074. Is python really that much more terse than perl, or is it an artefact of the translation?

Re: [Flightgear-devel] Taxiway / Apron lighting advice wanted.

2003-12-10 Thread David Megginson
Curtis L. Olson wrote: I don't think there are hard and fast rules for this. Ultimately real people spend real time and real money installing real lights. So a lot of times, smaller airports with smaller budgets have no taxiway lighting at all. KDEN has all it's taxiways very well lit, and has

Re: [Flightgear-devel] Taxiway / Apron lighting advice wanted.

2003-12-10 Thread David Megginson
Curtis L. Olson wrote: Possibly, but from what I've heard, the main reason for centreline lighting on runways is to support Cat II and III ILS approaches (down to a 50 ft ceiling); probably, the same applies to taxiway lighting, since you'll have ground ops in *extremely* low visibility. I was a

Re: [Flightgear-devel] Taxiway / Apron lighting advice wanted.

2003-12-10 Thread David Megginson
David Luff wrote: How about aprons? Most of the airports already done have edge (and center) lighting defined for pretty much everything, including the aprons. I'm assuming that small fields won't have that, but larger commercial fields? That probably depends as much on the apron as the airport

Re: [Flightgear-devel] aircraft TODO list

2003-12-12 Thread David Megginson
[EMAIL PROTECTED] wrote: The result is this aircraft TODO list, i suggest adding this file to cvs in the data/Aircraft directory, so that new entrys or old entrys can easily be removed in this file when an aircraft gets upgraded. Thank you, but instead of adding this to the CVS (so that you always

[Flightgear-devel] Back from Philly

2003-12-12 Thread David Megginson
I flew back to Ottawa (CYOW) from Philadelphia (KPHL) today, against a strong heading (ground speed was 95-105 kt for a true airspeed of about 126 kt). I climbed up to 10,000 ft to stay above all the lake-effect weather in Upstate NY, and ended up with a nice, sunny, 3.5-hour flight home. To k

Re: [Flightgear-devel] [OT] more fluff

2003-12-13 Thread David Megginson
Jon Berndt wrote: This story will warm your heart ;-) "A DC-3 flies the northern skies" http://msnbc.msn.com/id/3660452/ I just took a quick glance, but haven't read the story yet. Last I heard, those guys were operating three DC-3's out of Yellowknife. Plane fans love them (of course), but

Re: [Flightgear-devel] NMEA *out* to a Garmin

2003-12-13 Thread David Megginson
Manuel Bessler wrote: A while ago, I read something from the M$FS side of things about outputting GPS data from the sim to a GPS unit. Here's a link: http://forums.avsim.net/dcboard.php?az=show_topic&forum=142&topic_id=5559&mesg_id=5559&page=5 Mentioned was the "Garmin GPSMap 196". Thanks. It loo

Re: [Flightgear-devel] Random 3d Models and buildings

2003-12-15 Thread David Megginson
Matevz Jekovec wrote: Yes, I agree with that. Water towers are awfully wierd for Europe:). A good example of non-appropriate buildings are catholic churches in the Middle east, high concentration of block of flats and skyscrapers, but no suberbs in India and China etc. In my opinion, we should

Re: [Flightgear-devel] Re: [Terragear-devel] SRTM Eurasia

2003-12-17 Thread David Megginson
Martin Spott wrote: What would be *very* cool would be to constrain the roads to stay on dry land and off airport property, but that would be significantly more work. Hmmm, I'm shure there are several cases where roads go below the runway. Amsterdam Schiphol is a popular example, Long Beach is an

Re: [Flightgear-devel] Re: Cockpit Hardware Building

2003-12-18 Thread David Megginson
Matthew Law wrote: That sounds about right for a 152. Maybe David can tell you how much throw is > available on his aircraft? This is going to sound stupid, but I'm not sure. I think of the rudder pedals in terms of pressure rather than movement -- to get that in a simulator cockpit, you'll

Re: [Flightgear-devel] Re: Cockpit Hardware Building

2003-12-18 Thread David Megginson
Alan King wrote: Just a spring return to give some general feedback is all I'm planning for now. Main use on a simulator is simply to seperate the controls to the correct actions, don't see much point in going beyond that short of doing a full cockpit simulation of a particular type, which i

Re: [Flightgear-devel] 18th Century city texture

2003-12-21 Thread David Megginson
Paul Surgeon wrote: BTW : I've seen some MSFS scenery that had street lights along a major road - it looked incredibly real and is a great navaid at night. In real life I don't find it all that useful. The places that major streets tend to be lit are the places that everything else around is st

Re: [Flightgear-devel] My Flight in a B-1B Flight Simulator at Dyess AFB

2003-12-24 Thread David Megginson
Cameron Moore wrote: One question though. I mentioned trying to line up with a fuel tanker and how the delayed movement was throwing me off. My guess is that this behavior was due to slow control surface movements. My question is if JSBSim simulates control surface movement speeds (excluding th

Re: [Flightgear-devel] TaxiDraw-0.1.1 available

2003-12-24 Thread David Megginson
David Luff wrote: TaxiDraw-0.1.1 is now available from: http://www.nottingham.ac.uk/~eazdluf/TaxiDraw-0p1p1-w32bin.zip Windows binary [383K] and http://www.nottingham.ac.uk/~eazdluf/TaxiDraw-0p1p1-src.tar.gz Source [85K], requires wxWindows to compile (wxGTK-dev on Linux). Excellent. I think th

Re: [Flightgear-devel] My Flight in a B-1B Flight Simulator at Dyess AFB

2003-12-24 Thread David Megginson
Tony Peden wrote: Airliners aren't that sluggish ... the flare is initiated below 50 ft AGL and that is definitely over the runway. I guess that brings us back to the old discussion about round-out vs. flare (U.S. books seem to distinguish the two). The jets are are nose-high and slowing about

Re: [Flightgear-devel] ADF bindings

2003-12-26 Thread David Megginson
Andy Ross wrote: I noticed that the ADF frequencies displayed no longer agree with the Equipment>Radios pull-down menues. [...] I don't think so. I've only modified the keyboard and joystick bindings so far; the radio stuff lives in the GUI dialogs and panel/instrument definitions. No, it's my f

Re: [Flightgear-devel] ATC Talk

2003-12-29 Thread David Megginson
Matthew Law wrote: According to the ICAO, all ATC comms should be in English. Quite rightly however, > most controllers use their native tongue unless talking to international flights. Actually, I think that's a serious problem. One of the benefits of using a common ATC frequency (instead of

Re: [Flightgear-devel] TaxiDraw-0.1.1 available

2003-12-29 Thread David Megginson
David Luff wrote: Thanks! To be honest, the need for a webpage with a tutorial on it had crossed my mind, > and I've fired up Quanta and started. Trying to write a tutorial and some instructions > have made clear to me just how hard it is to write good documentation though - getting > somethin

[Flightgear-devel] DC-3 Ground Handling Fixes

2003-12-29 Thread David Megginson
I've just checked in some changes to DC-3 gear configuration, and ground handling should be a bit more reasonable: the plane isn't quite as bouncy, and the main gear no longer compresses up to 1 m (!!!). I can now manage wheel landings, which the old gear configuration wouldn't allow, though I

Re: [Flightgear-devel] ATC Talk

2003-12-30 Thread David Megginson
Matthew Law wrote: I agree with you totally. My sentiment was that there have also been many > accidents caused by ATC talking in a foreign language (English) to another > pilot who also doesn't speak English as a first language. That can often be a problem between a controller and pilot who *do*

Re: [Flightgear-devel] ATC Talk

2003-12-30 Thread David Megginson
Martin Spott wrote: Do you have to pass an exam on the north American continent for operating the radio ? In Germay we have to own the "Restricted Flight Radiotelephone Operator's Certificate" (this is _not_ my translation, it's printed on the certificate itself :-) _before_ you are allowed to e

Re: [Flightgear-devel] Repeatable VASI light observations

2003-12-30 Thread David Megginson
Jon Stockill wrote: Yeah, fantastic - I've just had chance to try it out - it looks great, and really shows up how bad my flying is :-) It might not be as bad as you think -- following a VASIS (or a glidescope) gives an awfully low approach for a small plane. All the best, David __

Re: [Flightgear-devel] Glideslope on KSFO 28R ?

2004-01-05 Thread David Megginson
Victoria Welch wrote: I've been burried here lately and haven't had a chance to try someplace else yet, but is there no glideslope on the ils there or do I have a problem? The glide slope indicator never uncages - just stays centered (c172, C310). I have heard of places only having a locali

Re: [Flightgear-devel] Autocoordination

2004-01-08 Thread David Megginson
Hof Markus wrote: IMHO this could not be right! Example: you fly a turn at low bank angle lets say 5°, so you will need no (or very less) aileron to hold the bank. (aileron = 0) but at 5° Bank you have to use rudder to fly a correct(!) turn, and rudder=aileron/ 2 = 0/2 = 0 != rudder needed. As soo

Re: [Flightgear-devel] Autocoordination

2004-01-08 Thread David Megginson
Matthew Law wrote: So maybe the problem could be with the FDM representing the wrong adverse yaw amount > for that aircraft? As someone else mentioned, it's simply a matter of implementing a yaw-damper in the autopilot -- think of it as a device that keeps adjusting the rudder automatically to

Re: [Flightgear-devel] Autocoordination

2004-01-08 Thread David Megginson
Hof Markus wrote: It depends on A/C aerodynamics wheter the plane starts to turn w/ bank angle != 0 or not. Usually the plane does not, so FCPC is mixing some rudder to make the plane turn. Which force would else make the plane turn? And I'm sure Bank Angle does not, may help a little bit. In fact

Re: [Flightgear-devel] Autocoordination

2004-01-08 Thread David Megginson
John Wojnaroski wrote: Believe it or not, what makes an airplane turn is LIFT... think about it. Same thing -- one wing develops more lift than the other, the plane banks and wants to slip sideways, but as it does the horizontal stabilizer develops (sideways) lift and swings the nose around int

Re: [Flightgear-devel] Autocoordination

2004-01-08 Thread David Megginson
Andy Ross wrote: An aircraft held in a level sideslip will turn, for example, due to the side forces caused by the slip, no wing lift need be involved. In the planes I've flown -- admittedly not a wide range of types -- holding rudder generally induces a bank before there's a significant change i

Re: [Flightgear-devel] illuminated baybridge

2004-01-09 Thread David Megginson
Melchior FRANZ wrote: And BTW: I know that airport lighting can't easily be implemented in a similar way. Still, turning off all the taxiway lights when looking from further away might be desirable. :-) Actually, if you're approaching a runway from about 90 degrees, it's the taxiway lights that y

Re: [Flightgear-devel] illuminated baybridge

2004-01-09 Thread David Megginson
Curtis L. Olson wrote: Yes, it's a subtle effect and you may not notice it unless you are looking for it specifically, but all runway lighting in FlightGear is directional. In other words the lights are brightest when viewed along the direction they are pointing and dim out as you move perpend

Re: [Flightgear-devel] Oh dear....

2004-01-09 Thread David Megginson
Jon Stockill wrote: US developers/users need to be careful - you'll be marked as terrorists. http://www.theregister.co.uk/content/28/34776.html The sad part is not the anti-aviation hysteria, bad as it is, but the idea of a government that encourages citizens to spy on each other and report rou

Re: [Flightgear-devel] Oh dear....

2004-01-09 Thread David Megginson
JD Fenech wrote: This is pretty sad. It's times like this when I start to consider relocating to Canadia to find a job and live there, much as I bash on it (jokingly, of course; it really wouldn't do to be bashing our 51st state). Here's a local (New England) version of the same story, with det

Re: [Flightgear-devel] YASim turbulence in CVS

2004-01-10 Thread David Megginson
Andy Ross wrote: I just commited a turbulence model that I wrote over the vacation. It seems to work pretty well, but I'd be curious to see what other people think. Tuning it is more subjective than I had expected. Thank you for doing this. I gave the turbulence a test drive with these command

Re: [Flightgear-devel] Panel Building ?!?

2004-01-11 Thread David Megginson
Victoria Welch wrote: I'm thinking I want to get into building panels for FG aircraft. Either I am missing it or the tools for the job are vi, gimp, an XML reference and all the FG header files ?!? Actually, the preferred method would be Blender/AC3D, GIMP, and vi/emacs -- panel instruments

Re: [Flightgear-devel] Panel Building ?!?

2004-01-12 Thread David Megginson
Innis Cunningham wrote: I could not write two lines of C code to save myself but I found the XML files quite easy to learn.The main thing to remember with XML is cut and paste is your greatest friend.You can throw a panel together quite quickly if you know what code blocks to use. That's good to h

Re: [Flightgear-devel] Panel Building ?!?

2004-01-12 Thread David Megginson
Innis Cunningham wrote: panel instruments made as proper 3D objects are the way At the risk of getting into trouble I would ask why. Nearly all instruments in an A/C are presented as 2D the only real 3D instrument I can think of is the AH ball and with the introduction of the glass cockpit even t

Re: [Flightgear-devel] Panel Building ?!?

2004-01-12 Thread David Megginson
Innis Cunningham wrote: Either way, you're building a 3D object, and the level of difficulty is about the same -- you can just as easily stack and animate 2D textures using our 3D animation code. The 2D code is a legacy thing that it would be nice to dump, eventually. I would have thought th

Re: [Flightgear-devel] Panel Building ?!?

2004-01-12 Thread David Megginson
Paul Surgeon wrote: 1. I need an easy way of zooming in and out (scroll wheel?) so that the labels can be read and instruments adjusted. For a while, I had "+", "-", and "=" assigned to that, with "=" snapping back to the default zoom. I think someone else changed it. I'd be reluctant to use t

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