RE: [Flightgear-devel] Spitfire

2004-07-27 Thread Vivian Meazza
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bernie Bright Sent: 27 July 2004 05:41 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Spitfire Vivian Meazza wrote: Ampere K. Hardraade wrote Sent: 26 July

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Megginson Sent: 26 July 2004 23:41 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Vivian Meazza wrote: I think I would expect an engine

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Erik Hofman
Innis Cunningham wrote: Hi All As far as I can tell there is no property to simulate a stabilizer trim system in flightgear.If this is not the case then maybe some kind soul could point me to the said property. If there is infact no such property currently, is there some kind soul who could

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
Matthew Law wrote Sent: 26 July 2004 23:41 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Vivian Meazza wrote: I think I would expect an engine running out of fuel to rapidly lose power and wind down, not stop abruptly as it would if you

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Erik Hofman
Vivian Meazza wrote: Pitot head icing It might be a bit early, but I seriously read pilot head icing at first ... Erik (Is that already implemented?) ___ Flightgear-devel mailing list [EMAIL PROTECTED]

Re: [Flightgear-devel] trouble with generic protocol over TCP/IP

2004-07-27 Thread Erik Hofman
Tiago Gusmão wrote: meanwhile while using tcp.xml, i noticed that using a line separator of newline actually printed the word newline (this doesn't happen in var separator), it doesn't bother me much, just reporting Odd, both cases are handled the same. Maybe your utility to check for the

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
Erik Hofman wrote: Sent: 27 July 2004 08:37 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Vivian Meazza wrote: Pitot head icing It might be a bit early, but I seriously read pilot head icing at first ... Erik (Is that already

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Erik Hofman
Vivian Meazza wrote: Mastered the Spitfire yet? Yes. It's a marvelous aircraft to fly! Erik ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
Erik Hofman replied Sent: 27 July 2004 09:29 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Vivian Meazza wrote: Mastered the Spitfire yet? Yes. It's a marvelous aircraft to fly! Good. It'll be better when the engine problems are

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Boris Koenig
Vivian Meazza wrote: Matthew Law wrote If carb heating is on enrich the mixture over time until power is restored. The conditions are actually aircraft and engine specific, I think wow, I am just about to notice how much work some people spend on really resembling all the various aircraft

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Matthew Law
Boris Koenig wrote: wow, I am just about to notice how much work some people spend on really resembling all the various aircraft subtleties properly ... didn't know that so far, would definitely recommend to create some kind of summary for each aircraft and place it as a textfile into each

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread David Megginson
Vivian Meazza wrote: I don't think that's intrinsically very difficult to simulate right now. When certain conditions are met, if carb heating is off, weaken the mixture over time (until the engine stops?). If carb heating is on enrich the mixture over time until power is restored. The conditions

Re: [Flightgear-devel] trouble with generic protocol over TCP/IP

2004-07-27 Thread Tiago Gusmão
There are missing elses (generic.cxx), meaning code could run line_separator= line_sep_string; even after one of the ifs was true. addind the elses fixes it. if ( line_sep_string == newline ) line_separator = '\n'; else if ( line_sep_string == tab )

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Innis Cunningham
Hi Eric Erik Hofman writes Innis Cunningham wrote: Hi All As far as I can tell there is no property to simulate a stabilizer trim system in flightgear.If this is not the case then maybe some kind soul could point me to the said property. If there is infact no such property currently, is there

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread David Culp
As far as I can tell there is no property to simulate a stabilizer trim system in flightgear.If this is not the case then maybe some kind soul could point me to the said property. I think the last time this came up the consensus was that the current elevator-trim property could be used for

Re: Carb ice (was Re: [Flightgear-devel] Tried the Spitfire)

2004-07-27 Thread Matthew Law
David Megginson wrote: I don't think we should disable any systems, period, but we can put users by default in situations where carb icing is unlikely (i.e. a clear, dry day). Once you get into situations where carb icing is likely, users are going to be dealing with other problems like

Re: Carb ice (was Re: [Flightgear-devel] Tried the Spitfire)

2004-07-27 Thread Matthew Law
David Megginson wrote: I don't think we should disable any systems, period, but we can put users by default in situations where carb icing is unlikely (i.e. a clear, dry day). Once you get into situations where carb icing is likely, users are going to be dealing with other problems like

[Flightgear-devel] OpenAL

2004-07-27 Thread Mah Drawfire
some coworkers and I have been trying to compile the latest FlightGear Build (0.9.5pre2). Unfortunately, we don't seem to be able to download the OpenAl source code from CVS. After downloading the SDK from Creative's website, we have not been able to build the samples they provided. Has anyone had

Re: Carb ice (was Re: [Flightgear-devel] Tried the Spitfire)

2004-07-27 Thread David Megginson
Matthew Law wrote: I agree totally. Does FG define humidity at all? Yes -- we report it, and I'm pretty sure that we use it in density altitude calculations (so that it affects both true airspeed and engine performance). We're drilled to use carb heat before making any major reduction in power

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Megginson Sent: 27 July 2004 12:39 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Vivian Meazza wrote: I don't think that's intrinsically

RE: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Vivian Meazza
Matthew Law wrote Sent: 27 July 2004 11:55 To: FlightGear developers discussions Subject: Re: [Flightgear-devel] Tried the Spitfire Boris Koenig wrote: wow, I am just about to notice how much work some people spend on really resembling all the various aircraft subtleties properly

Re: [Flightgear-devel] trouble with generic protocol over TCP/IP

2004-07-27 Thread Erik Hofman
Tiago Gusmão wrote: There are missing elses (generic.cxx), meaning code could run line_separator= line_sep_string; even after one of the ifs was true. You are completely correct on this. Thanks for the catch. A fix is in CVS. Erik ___ Flightgear-devel

Re: Carb ice (was Re: [Flightgear-devel] Tried the Spitfire)

2004-07-27 Thread Erik Hofman
David Megginson wrote: Matthew Law wrote: I agree totally. Does FG define humidity at all? Yes -- we report it, and I'm pretty sure that we use it in density altitude calculations (so that it affects both true airspeed and engine performance). METAR reported humidity is also used. Erik

[Flightgear-devel] Re: Carb ice

2004-07-27 Thread Alex Perry
David mentioned: Carb icing is common on humid days in certain Continental engines such as the one in the Cessna 150 and the old (pre-1967) 172, but it is very rare in engines like the Lycoming O-320 (used in the Warrior and post-1967 Cessna 172's). The warnings in the later 172 POH's

Re: [Flightgear-devel] Re: Carb ice

2004-07-27 Thread David Megginson
Alex Perry wrote: That's a point. Once the engine stutters/quits due to carb ice, you have to make it take a while for the ice to go away again. ... and it takes quite a while ... Once the engine quits, it's too late for carb heat, isn't it? If it's only a partial blockage, we can simulate the

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Andy Ross
Vivian Meazza wrote: Slightly higher would be the suggestion that out-of-fuel should not be terminal though, since pilot error can end up with a full tank not connected to the engine. In real life - reconnect - problem solved (or nearly). So far as I can see that is not an option in our sim.

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Andy Ross
Vivian Meazza wrote: David Megginson wrote: Vivian Meazza wrote: Slightly higher would be the suggestion that out-of-fuel should not be terminal though That's not an uncommon occurrence on low-wing planes, from what I hear: when Cessna pilots rent low-wing planes, you sometimes get

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread David Megginson
Andy Ross wrote: Granted, I haven't had time to test any of this. But I guess I'm having trouble understanding exactly what your complaint is: trying to draw fuel from an empty tank *should* kill an engine. OK, try this: I'm flying on the left tank in my Warrior and not switching. The tank goes

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Andy Ross
David Megginson wrote: OK, try this: I'm flying on the left tank in my Warrior and not switching. The tank goes dry and the engine stops. I switch to the right tank, and as long as the prop is still windmilling, the engine springs to life again in a few seconds. Is that the way things will

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Andy Ross
Innis Cunningham wrote: As far as I can tell there is no property to simulate a stabilizer trim system in flightgear. If this is not the case then maybe some kind soul could point me to the said property. What's wrong with /controls/flight/elevator-trim? Stabilizer trim is an FDM

Re: [Flightgear-devel] 0.9.5-pre2 Comper Swift

2004-07-27 Thread Lee Elliott
On Monday 26 July 2004 22:48, Jon Stockill wrote: Vivian Meazza wrote: Has anyone tried this delightful model under 0.9.5-pre2 recently? I get YASim failing to converge. Confirmed - same problem here. Confirmed here too. I had already started work on updates for the Swift and when I just

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Lee Elliott
On Tuesday 27 July 2004 08:37, Erik Hofman wrote: Vivian Meazza wrote: Pitot head icing It might be a bit early, but I seriously read pilot head icing at first ... Erik (Is that already implemented?) Perhaps I should look into it for the Swift;) LeeE

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Lee Elliott
On Tuesday 27 July 2004 20:22, Andy Ross wrote: [snip] FWIW: You can map controls to the incidence value of an htsab object in YASim to make this work, although all the current aircraft simply add the elevator trim to the tail's flap deflection. The results are indistinguishable. Andy

Re: [Flightgear-devel] Re: Carb ice

2004-07-27 Thread Matthew Law
David Megginson wrote: Alex Perry wrote: That's a point. Once the engine stutters/quits due to carb ice, you have to make it take a while for the ice to go away again. ... and it takes quite a while ... Once the engine quits, it's too late for carb heat, isn't it? If it's only a partial

[Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread David Megginson
I've been frustrated with the tendency of the DC-3 (--aircraft=dc3) to noseover during the takeoff and landing rolls, and of the J3 Cub (--aircraft=j3cub) to nose over during wheel landings. I've fiddled with the YASim files a lot in the past but have never found a good solution. Finally,

Re: [Flightgear-devel] Re: Carb ice

2004-07-27 Thread David Megginson
Matthew Law wrote: I can't see the harm of a temporary and slight decrease in power compared to what could go wrong if I didn't use it... Fair enough. You have to weight it against the risk of forgetting to shut it off in an overshoot, giving you reduced climb power and a tiny possibility of

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Lee Elliott
On Tuesday 27 July 2004 22:46, David Megginson wrote: I've been frustrated with the tendency of the DC-3 (--aircraft=dc3) to noseover during the takeoff and landing rolls, and of the J3 Cub (--aircraft=j3cub) to nose over during wheel landings. I've fiddled with the YASim files a lot in the

Re: [Flightgear-devel] Re: Carb ice

2004-07-27 Thread Alex Perry
From: David Megginson [EMAIL PROTECTED] Alex Perry wrote: That's a point. Once the engine stutters/quits due to carb ice, you have to make it take a while for the ice to go away again. ... and it takes quite a while ... Once the engine quits, it's too late for carb heat, isn't it? Not if

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Matthew Law
David Megginson wrote: I've been frustrated with the tendency of the DC-3 (--aircraft=dc3) to noseover during the takeoff and landing rolls, and of the J3 Cub (--aircraft=j3cub) to nose over during wheel landings. I've fiddled with the YASim files a lot in the past but have never found a good

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Jim Wilson
David Megginson said: I've been frustrated with the tendency of the DC-3 (--aircraft=dc3) to noseover during the takeoff and landing rolls, and of the J3 Cub (--aircraft=j3cub) to nose over during wheel landings. I've fiddled with the YASim files a lot in the past but have never found a

[Flightgear-devel] .RV-9?, was: Carb ice (was Re: Tried the Spitfire)

2004-07-27 Thread Arnt Karlsen
On Tue, 27 Jul 2004 14:09:24 +0100, Matthew wrote in message [EMAIL PROTECTED]: I think my Vans RV-9 will have a diesel engine :-) ..you have a kit started? Which diesel? -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) ...with a number of polar bear hunters in his ancestry...

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Andy Ross
Jim Wilson wrote: Have I had this backwards all along? I knew of the incidence angle on the hstab, but always thought that positive values meant the leading edge was higher than with a negative incidence angle The number is a (conventional, right handed) rotation about the Y axis, which in

Re: [Flightgear-devel] Tried the Spitfire

2004-07-27 Thread Arnt Karlsen
On Tue, 27 Jul 2004 07:38:43 -0400, David wrote in message [EMAIL PROTECTED]: When there is no actual carb ice, carb heat makes the intake air hotter, and thus thinner, so the mixture also becomes richer (more fuel, less air), but in this case not usually rich enough to stop the engine.

Re: [Flightgear-devel] Spitfire

2004-07-27 Thread Bernie Bright
Vivian Meazza wrote: plib.ssgAux has a particle system that can simulate smoke. Attach one to an animation object and there you have it. Any takers? Someone (David Megginson?) mentioned the particle system when the subject of smoke was brought up some time ago. It may have been me but

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread David Megginson
Andy Ross wrote: The number is a (conventional, right handed) rotation about the Y axis, which in YASim's coordinate system points out the left wingtip. So a positive incidence points down. Unless there's a sign bug (or three, or five...) in there somewhere. A positive incidence points down?? So

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Jim Wilson
Andy Ross said: Jim Wilson wrote: Have I had this backwards all along? I knew of the incidence angle on the hstab, but always thought that positive values meant the leading edge was higher than with a negative incidence angle The number is a (conventional, right handed) rotation about

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Innis Cunningham
Thanks Guys I guess the answer is there is no stabilizer trim property. Andy Ross writes Innis Cunningham wrote: As far as I can tell there is no property to simulate a stabilizer trim system in flightgear. If this is not the case then maybe some kind soul could point me to the said property.

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Tony Peden
On Tue, 2004-07-27 at 18:36, Innis Cunningham wrote: Thanks Guys I guess the answer is there is no stabilizer trim property. Andy Ross writes Innis Cunningham wrote: As far as I can tell there is no property to simulate a stabilizer trim system in flightgear. If this is not the

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Andy Ross
Innis Cunningham wrote: Andy Ross wrote: What's wrong with /controls/flight/elevator-trim? Because stab trim and elevator trim are not the same. It is like saying a piston engine and a jet engine are the same. They are in the fact that they both provide thrust to the aircraft.It is how

Re: [Flightgear-devel] Stabilizer Trim

2004-07-27 Thread Innis Cunningham
Andy Ross writes So I'll ask again: what is it you want to do that cannot be done with the existing control property? I guess that the current elevator trim property does trim the aircraft in pitch. But if the stabilizer trim and the elevator trim use the same property then applying trim will

Re: [Flightgear-devel] Taildragger takeoff and landing

2004-07-27 Thread Jim Wilson
David Megginson said: Andy Ross wrote: The number is a (conventional, right handed) rotation about the Y axis, which in YASim's coordinate system points out the left wingtip. So a positive incidence points down. Unless there's a sign bug (or three, or five...) in there somewhere. A

[Flightgear-devel] Minor logic bug re: starting location initialization?

2004-07-27 Thread Chris Metzler
Hi. It appears that in initialization, if an airport and heading are specified on the command line, a runway is immediately chosen based upon the heading, and latitude/longitude is set to that runway's threshhold. This is sensible if the user is starting *at* the airport; but if the user is