OK, I *think* I have nailed the platform-dependant YASim solution
failures. What I found was that the solution heuristics hid a bunch
of pseudo-chaotic instabilities that were introduced when the approach
elevator trim feature went in a few weeks back. This was
deterministic, but weird --
On Wednesday, May 29, 2002, at 04:06 am, Alex Perry wrote:
Just something to file away ... big jets should have a climb mode in
which the power is regulated to max climb by the autothrottles and
speed
is held with the pitch control.
Is this the mode activated by the CLB / CON switch (on
Cameron Moore [EMAIL PROTECTED] said:
When in the tower view and the aircraft goes through a cloud layer, the
tower view gets clouded. It looks like we are using the FDM altitude
to draw the cloud fog but should be using the current view altitude.
You are probably right. I haven't tested
* Andy Ross -- Wednesday 29 May 2002 08:47:
OK, I *think* I have nailed the platform-dependant YASim solution
failures.
Confirmed! None of the aircrafts makes fgfs abort with a solution failure now.
Interations are all below 1000 (400--900). The 747 causes some
Error: base =..., but seems to
Hi Thomas,
A couple questions below.
Thomas Holland [EMAIL PROTECTED] said:
The CLB and CON (max. continuous thrust) you mentioned above (and the other
two modes CRZ and TO/GA) are just limits. This means, that they set an upper
limit on how much thrust will be provided by the autothrottle
I've modified the code for the http-Server (httpd.cxx/hxx) [from Curt I think] so that
it can
be used for a dynamic web-tree (html/JavaScript) to browse the property-tree.
The nodes are added dynamically, so nothing has to be done if there were changes
on the Property-Tree.
Here is what
[I assume Thomas will reply anyway, but I want to check I have this
right (from using the PMDG 757/767/777s which are supposed to be just
about the most accurate systems models out there)]
On Wednesday, May 29, 2002, at 02:23 pm, Jim Wilson wrote:
So if in SPD mode the selected speed was
Kaiser Georg wrote:
I've modified the code for the http-Server (httpd.cxx/hxx) [from Curt I think] so
that it can
be used for a dynamic web-tree (html/JavaScript) to browse the property-tree.
The nodes are added dynamically, so nothing has to be done if there were changes
on the
* [EMAIL PROTECTED] (Jim Wilson) [2002.05.29 07:06]:
Cameron Moore [EMAIL PROTECTED] said:
Another problem I ran in to was that when starting at KHAF and
cycling to the tower view, all hell breaks loose. The first time I
got a fatal error trying to load a bogus tile. Subsequent tries
Andy Ross [EMAIL PROTECTED] said:
Anyway, try the new code and see if that works for you. You'll also
want new planes, as some of the old ones went pretty wacky once the
fix went in:
http://www.plausible.org/andy/yasim-aircraft-052902.tar
Andy that works. Haven't been able to
Jim Wilson wrote:
Andy that works. Haven't been able to download your tar ball (is the
link correct?).
Sigh. Long story: plausible.org is a box in my closet. We lost power
last night. It has a dumb (Asus P5A) ATX motherboard that doesn't
know how to power on following a power loss (it
On Wed, 29 May 2002 10:05:07 -0700
Andy Ross [EMAIL PROTECTED] wrote:
last night. It has a dumb (Asus P5A) ATX motherboard that doesn't
know how to power on following a power loss (it comes up in soft-off
You sure you don't have a BIOS setting for that? I've got
one on my m/b. Maybe you need
Andy Ross wrote:
Jim Wilson wrote:
It appears that the thrust/altitude curve is a bit too steep. [...]
Also there seems to be a greatly exagerated ram effect (not sure of
correct term). It seems that airspeed changes might be affecting the
thrust value too greatly, but I don't have a feel for
Andy Ross writes:
Melchior FRANZ wrote:
The 747 causes some Error: base =..., but seems to behave
normal.
These aren't YASim errors. I'm not sure what they mean.
AFAICT These messages originate in simgear / sky / cloud.cxx
___
Flightgear-devel
Well I am happy to report that I got the Photo scenery to work perfectly.
Unfortunately it is with the latest windows binaries under XP. Although the
photo scenery works fine none of the other scenery seems to be installable
as it doesnt seem to be uncompressable under windows.
Do you mean
Jon S. Berndt wrote:
Andy Ross wrote:
last night. It has a dumb (Asus P5A) ATX motherboard that doesn't
know how to power on following a power loss (it comes up in soft-off
You sure you don't have a BIOS setting for that? I've got one on my
m/b. Maybe you need to upgrade your BIOS?
* [EMAIL PROTECTED] -- Wednesday 29 May 2002 19:42:
Do you mean rectangular holes in the ground at various joints in
the scenery, like around airports? I still get this problem (CygWin,
non-photo scenery) which appeared a few weeks ago.
These were AFAIK introduced together with the
Andy Ross writes:
OK, this doesn't surprise me too much. I haven't examined the Jet
stuff very closely. The way the code works is that it matches some
performance curves I got out of McFarland for a 707 engine. The
turbofans on the 747 actually won't be too terribly far off in their
Melchior FRANZ writes:
These were AFAIK introduced together with the experimental runway
lighting and are related to the skirts around airports, that should
make the nasty. tiny white artifacts invisible. As it is now, it
makes them more visible, but just a little bit! And beware! You
David Megginson wrote:
Andy Ross writes:
The way the code works is that it matches some performance curves I
got out of McFarland for a 707 engine. The turbofans on the 747
actually won't be too terribly far off in their thrust performance,
I'd think.
This is probably a dumb question,
* David Megginson -- Wednesday 29 May 2002 20:18:
The problem is that the new airport objects (with lighting) don't
always fit exactly into the old holes. When I build new scenery from
scratch, I don't see any holes around the airports.
But if it's just a matter of rebuilding the scenery for
[At supersonic speeds, lots of stuff is happening that won't be
modelled well by the current code at all. The F-15C that I did for
Gene, for example, was reading 130% N1 RPM at mach 2 or so. :)]
Say what?! When did you do this? Did you take the DECC/ECC into account?
:)
g.
Melchior FRANZ writes:
* David Megginson -- Wednesday 29 May 2002 20:18:
The problem is that the new airport objects (with lighting) don't
always fit exactly into the old holes. When I build new scenery from
scratch, I don't see any holes around the airports.
But if it's just a
Andy Ross writes:
Anyway, try the new code and see if that works for you. You'll also
want new planes, as some of the old ones went pretty wacky once the
fix went in:
http://www.plausible.org/andy/yasim-aircraft-052902.tar
I'm checking these in now.
All the best,
David
--
Alex Perry writes:
I think the animation is great on better cards, so we shouldn't change it,
but can we have a way to remove the prop (or just the alpha layer) for
low bit depth cards ? Something I can set in preferences, for example,
that causes all our aircraft models to fly without
I've fixed the missing model problem -- specifying a non-existant
aircraft model (not any other kind) will default to the glider again
rather than throwing an exception.
By the way, the 747 model is looking good. I'm happy that we're
building up a nice stable (er, hangar) of unencumbered,
Curtis L. Olson writes:
Another thing that would be nice to see is a fuel tank selector.
Is there support for anything like this currently?
It shouldn't be too hard to add this to JSBSim and YASim. It's hard
to generalize, though, because there are so many different ways to
select fuel
* [EMAIL PROTECTED] (David Megginson) [2002.05.29 15:23]:
I've fixed the missing model problem -- specifying a non-existant
aircraft model (not any other kind) will default to the glider again
rather than throwing an exception.
I'll mark that off my list. :-) Thanks, David.
By the way,
Cameron Moore writes:
We (the two Cameron's) have already done some FDM work on a Piper
Cherokee PA-28-180. I have a pretty ugly looking 3-view, but I can send
it to you if you want it. We really need someone to pick up on the aero
file where we left off. We were close but had some
Hi,
As Cameron suggested me I expose here my 'problem', previously exposed
on the user ML :
http://seneca.me.umn.edu/pipermail/flightgear-users/2002-May/001078.html
(And previous in the thread))
Summary :
I'working on FG to add an Instrument on the panel to give the pilot
the possibility to
-Original Message-
From: Melchior FRANZ [mailto:[EMAIL PROTECTED]]
Sent: Mittwoch, 29. Mai 2002 20:00
To: [EMAIL PROTECTED]
Subject: [Flightgear-devel] Re: Report on my Scenery Investigation
* [EMAIL PROTECTED] -- Wednesday 29 May 2002 19:42:
Do you mean rectangular holes in the
David Megginson [EMAIL PROTECTED] said:
By the way, the 747 model is looking good.
Thanks. I'm doing some major re-work with it now...basicly after figuring out
how to get around some of ac3d limitations. AC3D works well for this stuff,
but it's texturing options are limited (but in the end
Jim Wilson wrote:
In any case it'd be awful nice to have a gpl'd modler.
That's why PPE was started. But it's development has stopped. (Steve
Baker still want's to finish it - when he finds the time for it...)
CU,
Christian
--
The idea is to die young as late as possible.-- Ashley
Jim, have you tried GMAX?
g.
On Wed, 29 May 2002, Jim Wilson wrote:
David Megginson [EMAIL PROTECTED] said:
By the way, the 747 model is looking good.
Thanks. I'm doing some major re-work with it now...basicly after figuring out
how to get around some of ac3d limitations. AC3D works
I wrote:
Jim Wilson wrote:
It appears that the thrust/altitude curve is a bit too steep. [...]
Also there seems to be a greatly exagerated ram effect (not sure
of correct term). It seems that airspeed changes might be affecting
the thrust value too greatly, but I don't have a feel for
We (the two Cameron's) have already done some FDM work on a Piper
Cherokee PA-28-180. I have a pretty ugly looking 3-view, but I can send
Slightly off topic. There are a lot of places where we can get 3-view
sets with a scale for pretty much any aircraft. It occurs to me that
it should be
* [EMAIL PROTECTED] (Gene Buckle) [2002.05.29 17:19]:
Jim, have you tried GMAX?
Can GMAX save to a format that plib can read? I was under the
impression that it doesn't.
--
Cameron Moore
/ If a person with multiple personalities threatens \
\ suicide, is that considered a hostage situation?
* [EMAIL PROTECTED] (David Megginson) [2002.05.29 16:03]:
Cameron Moore writes:
We (the two Cameron's) have already done some FDM work on a Piper
Cherokee PA-28-180. I have a pretty ugly looking 3-view, but I can send
it to you if you want it. We really need someone to pick up on
Many of you may be aware that I have a Developer Locations page[1] for
FlightGear (similar to Debian's). It's completely unofficial, but I
received a good response from everyone when I started it. Since then
we've gained a few new contributers.
So, if you contribute to FG and would like to be
OK, I've examined the jet code a bit more closely, and it actually
looks pretty good to me. Attached is a graph of available thrust
vs. speed and altitude for the engines as modelled on the 747-400. I
threw together a little program that looped over the Jet object, and
played with
Wish I could give a better description but a couple of times recently I've
seen something really weird happening while testing the 747 3d model.
With everything synced to the current CVS the YASim fdm fails to start with
747-yasim on my system. It just spews a bunch of Fail to unbind property
Major A [EMAIL PROTECTED] said:
OK, I've examined the jet code a bit more closely, and it actually
looks pretty good to me. Attached is a graph of available thrust
vs. speed and altitude for the engines as modelled on the 747-400. I
threw together a little program that looped over
It wouyld be rude to post a sceencap to the list I guess. I will put it
online and post a link shortly
- Original Message -
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, May 30, 2002 3:12 AM
Subject: Re: [Flightgear-devel] Report on my Scenery Investigation
Well I am
I thought it saves under a 3DS compatible format. I'm not sure as I've
never used it before.
g.
On Wed, 29 May 2002, Cameron Moore wrote:
* [EMAIL PROTECTED] (Gene Buckle) [2002.05.29 17:19]:
Jim, have you tried GMAX?
Can GMAX save to a format that plib can read? I was under the
This may or may not have anything to do with the jet code, but with
the 747-yasim, I cannot slow the plane below about 280kt in level
flight at 3000ft ASL with throttles at minimum and full flaps, which
makes the plane rather hard to land...
Legally you shouldn't be up to 280kt at
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