> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Andy Ross
> Sent: 19 May 2004 15:06
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] YASim prop changes
>
>
> Vivian Meazza wrote:
&g
> -Original Message-
Jim Wilson wrote:
> Andy Ross said:
>
> > Jim Wilson wrote:
> > > It'd be great if someone else could look at the P51D fdm.
> I'm lost.
> > > Flight dynamics is neither my area of expertise or interest. The
> > > only reason I did it in the first place is I ha
I wrote
>
> Jim Wilson wrote
>
> >
> > I can see a difference, but it is still broken. No matter
> > what the setting, now the engine RPM is either way to high or
> > way to low.
> >
> > It'd be great if someone else could look at the P51D fdm.
> > I'm lost. Flight dynamics is neither m
Jim Wilson wrote
>
> I can see a difference, but it is still broken. No matter
> what the setting, now the engine RPM is either way to high or
> way to low.
>
> It'd be great if someone else could look at the P51D fdm.
> I'm lost. Flight dynamics is neither my area of expertise or
> in
Andy Ross wrote
>
> Vivian Meazza wrote:
> > Now the bad news - the new propeller/engine code does not
> seem to > work for me. These are the input data:
>
> Nothing looks wrong from reading it. Can you post the whole
> file so I can test? Thanks.
>
Thi
Andy Ross wrote:
> Sent: 13 May 2004 23:38
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Spitfire Performance Testing
>
>
> Vivian Meazza wrote:
> > As you can see, it "flies". The engine/propeller combination is a
> >
May 2004 09:30:37 +0200
> Erik Hofman <[EMAIL PROTECTED]> wrote:
>
> > Jim Wilson wrote:
> > > Vivian Meazza said:
> >
> > >>Nearly there:
> > >>
> > >>http://myweb.tiscali.co.uk/vmeazza/FlightGear/spitfireIIa-1.jpg
> > >>
Andy wrote
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Andy Ross
> Sent: 13 May 2004 23:38
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Spitfire Performance Testing
>
>
> Vivian Me
Erik Hofman wrote (some time ago)
> Sent: 01 May 2004 08:42
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Spitfire Performance Testing
>
>
> Vivian Meazza wrote:
>
> > Thanks, Eric, that link was already a primary source. It's
&
Melchior FRANZ wrote
> Sent: 06 May 2004 09:50
> To: [EMAIL PROTECTED]
> Subject: [Flightgear-devel] Re: MD-11
>
>
> * Erik Hofman -- Thursday 06 May 2004 10:35:
> > 1. Create separate Model directories for each livery.
> > 2. Copy the animation configuration file to each directory.
> 3. Use t
propeller would be supersonic and therefore highly
> > improbable, but we now know that the data of hp, gear ratio,
> > rpm etc all tie
> > together.
> >
> > Thanks
> >
> > Vivian Meazza
> >
>
> I have a memory from years back of being told
nput data are a little
off, but it shows the proposal, briefly made during the discussion on the
performance of YASim, that 2850 was the propeller rpm, not the engine rpm at
"cruise" cannot be sustained.
I had already shown by some pretty simple math that at 2850 rmp the tips of
a 1.6
Erik Hofman wrote
> Sent: 30 April 2004 22:37
> To: FlightGear developers discussions
> Subject: [Flightgear-devel] Spitfire Performance Testing
>
>
>
> Hi,
>
> It just occurred to me I had this link in my bookmarks, just when you
> think you've seen all information about the spitfire:
>
>
David Luff helped some more
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> David Luff
> Sent: 28 April 2004 21:18
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] OpenAL
>
>
> "Vivi
David Luff gave clear instructions
>
> On 4/28/04 at 10:09 AM Jon S Berndt wrote:
>
> >
> >This was all done under CygWin? Can someone summarize the process?
> >
>
> Yes, under Cygwin. Here goes...
>
> Download Norman's prebuilt Cygwin openal from:
> http://www.vso.cape.com/~nhv/files/fg
Curtis L. Olson
> This falls into the category of useless ear candy (and there
> are a few
> things left to be improved) but I have taken my first stab at
> implimenting some 3d sound in FG. Currently you only can get this
> effect when flying from the tower view (good R/C practice).
> As
David Megginson wrote
> Andy Ross wrote:
>
> > But the idea behind YASim is to produce plausible results for all
> > possible engines; oil pressure is one of those values that
> is (AFAIK)
> > just too engine-specific.
>
> Further to the point, here is some information from the
> Lycoming
Jonathan Richards wrote
> On Friday 23 Apr 2004 5:24 pm, Vivian Meazza wrote:
> > Jonathan Richards
>
> >> I'm prepared to write to the Battle of Britain Memorial Flight
> >> [1] and ask them for information.
>
> > I think that would b
Jonathan Richards
> On Friday 23 Apr 2004 4:11 pm, Vivian Meazza wrote:
> > Jon Stockill wrote
>
> > > They were particularly impressed
> > > with the Seahawk and hunter models, so if Vivian wants to do a
> > > Seafire version of his spitfire model I&
d by "oil-pressure-psi" and it's
> measured in psi; in YASim is holded by "epr" but the units
> are missing.
>
Epr is exhaust pressure ratio. AFAIK, oil pressure is not modelled.
Regards
Vivian Meazza
___
Flightge
Jon Stockill wrote
> > The Fleet Air Arm Museum are very interested in having their own
> > simulator but this would depend on them being able to find
> a sponsor -
> > so it's still dubious as to if anything will happen in that respect.
>
> They have a Vampire cockpit which they're
Wolfram Kuss asked
> I did not see the original thread. What Spitfire version are
> you speaking about?
>
Spitfire Mk IIA
Regards
Vivian
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Vivian Meazza wrote
>
> Andy Ross
>
> > [Starting a new thread. The reply nesting level in my
> > mozilla window was getting freaky.]
> >
> > Vivian Meazza wrote:
> > > The engine I'm trying to specify developed 1140 HP at engine
> > >
Andy Ross
> [Starting a new thread. The reply nesting level in my
> mozilla window was getting freaky.]
>
> Vivian Meazza wrote:
> > The engine I'm trying to specify developed 1140 HP at engine
> > revolutions of 2850 rpm at a boost pressure of 9 psi. It
Andy Ross tried again!
> Vivian Meazza wrote:
> > As does this (2):
> > cruise-speed="308" cruise-rpm="2850"
> >
> > This does not (3):
> > cruise-speed="308" cruise-rpm="1360"
>
> Again, th
Andy Ross
>
> Vivian Meazza wrote:
> > However, eng-power should be the un-supercharged max power, so I
> > reduced eng-power value,
>
> No no, I was wrong. Use the superchared value, the eng-power
> gets corrected before solving to assume "max" sea
Andy wrote
>
> Vivian Meazza wrote:
> > However, eng-power should be the un-supercharged max power, so I
> > reduced eng-power value,
>
> No no, I was wrong. Use the superchared value, the eng-power
> gets corrected before solving to assume "max" sea
Andy Ross wrote
> Vivian Meazza wrote:
> > The "takeoff" values. Are these the power absorbed by the
> propeller at
> > propeller rpm, or the engine output at engine rpm, super- or
> > un-supercharged?
>
> Un-supercharged. And the equations are s
hose
> discreet speeds the automatic boost control attempts to
> maintain constant MAP.
>
> I *think* - I'm quite open to correction on all these points!
>
> You can take it from this that supercharging in JSBSim is
> fairly imminent BTW ;-)
>
> And I&#x
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> David Luff
> Sent: 19 April 2004 09:52
> To: FlightGear developers discussions
> Subject: RE: [Flightgear-devel] Spitfire & Hurricane manuals
>
>
>
>
Andy Ross wrote
>
> Vivian Meazza wrote:
> > With these values
> >
> > eng-power="1140" eng-rpm="2850"
> > cruise-power="2850" cruise-rpm="1359"
> > takeoff-power="1100" takeoff-rpm="1359"
Andy Ross wrote:
> Sent: 18 April 2004 19:04
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Spitfire & Hurricane manuals
>
>
> Vivian Meazza wrote:
> > YASim crashes, or perhaps, fails to converge, just by attempting to
> > ru
Andy Ross wrote
> Vivian Meazza wrote:
> > wastegate-mp="18.32"
> > [...]
> > mp-osi = 26.050 - does the "wastegate" work? - is this psi?
>
> The units are absolute pressure in inches of mercury (I
> honestly don't know what the &qu
> Andy Ross replied
> Vivian Meazza wrote:
> > wastegate-mp="18.32"
> > [...]
> > mp-osi = 26.050 - does the "wastegate" work? - is this psi?
>
> The units are absolute pressure in inches of mercury (I
> honestly don't know what the
Andy Ross wrote
> Vivian Meazza wrote:
> > How do we set the reduction gearing ratio?
>
> Set the "gear-ratio" attribute of the propeller tag. This is the
> reduction ratio, so typical values will be less than 1.0.
>
> > Can we do a constant speed pr
; anyone who can help me?
>
> Thanks a lot
>
> Marco
>
Look in the Hunter or p51d model files to see how it can be done.
Regards
Vivian Meazza
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sparent cockpit canopies also make clouds disappear.
>
Let me re-phrase that. At the moment the jet heat plumes are only eye candy.
There is no underlying physics. If or when we get around to the
thermodynamics etc., we can model heat plumes properly. It would be nice: we
could take into account exhaust re-ingestion for the Harrier and for helos.
Regards
Vivian Meazza
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within the existing capabilities of
FGFS. I intend to do a little more work on it in due course. I'm not giving
it a high priority, since it is really only eye candy. Fred Bouvier has been
doing some work on the interaction with clouds. BTW, transparent cockpit
canop
code, that might
> cause this
> problem.
>
> > - aircraft is not set on the correct elevation when starting
> > flightsgear, lowest part of the aircraft is approximately
> 0.20 m below
> > the ground
>
> Note, this is not to complain about this list, just to clarify some
> things and show that it's often not as simple as you would expect.
>
Thanks for drawing our attention to this todo list. I've added a few
comments to the entries for the Hunter and Seahawk.
Regards
Vivian Meazza
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Jonathan Richards
>
> On Wednesday 31 Mar 2004 11:09 am, Vivian Meazza wrote:
>
> > I now have the Spitfire IIa model well underway. I have all the
> > drawings and data I need (far too much probably). I've
> rather lost the
> > bubble on the
a laminar flow wing. Supersonic aerofoil sections are
whole new subject.
This may be of interest http://www.aae.uiuc.edu/m-selig/ads/aircraft.html
That said that list shows a different NACA number for the Spitfire to a
contemporary paper so ...
Regards
Vivian Meazza
___
nd the introduction into service of the new jet powered Meteor and
Vampire. The aircraft eventually evolved into the Seafang for Royal Navy
service which in its turn was also cancelled.
Regards
Vivian Meazza
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nd, the
contribution of both is marginal, I feel. I would be surprised if the
radiator drag, or lack of it effected the overall behaviour of the P51d
model. I think there is something bigger at work here - an incorrect entry
in the Yasim file, or an FDM error. I suspect something to do with the
propeller right now.
Regards
Vivian Meazza
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Jim Wilson wrote
> Vivian Meazza said:
>
> >
> >
> > The P51d YASim file appears to have the following typo: ...
> >
> >
> > ^^
> >
> >
> >
> > Makes the model interesting in roll!!
> >
Arnt Karlsen wrote
>
> On Wed, 31 Mar 2004 13:32:39 -0800, Andy wrote in message
> <[EMAIL PROTECTED]>:
>
> > Vivian Meazza wrote:
> > > Thanks for all that: all looks good - the documentation has got a
> > > bit astern of station. Could you
Andy Ross wrote
>
> Vivian Meazza wrote:
> > Thanks for all that: all looks good - the documentation has
> got a bit
> > astern of station. Could you explain a bit more about the "turbo"
> > attribute when used for a supercharger?
>
> Actually, the
Andy Ross replied
> Sent: 31 March 2004 20:43
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Spitfire & Hurricane manuals
>
>
> Vivian Meazza wrote:
> > How do we set the reduction gearing ratio?
>
> Set the "gear-ratio&qu
The P51d YASim file appears to have the following typo:
...
^^
Makes the model interesting in roll!!
Regards
Vivian Meazza
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27;ve rather lost the bubble on the
recent changes to the piston engine simulation in YASim:
How do we set the reduction gearing ratio?
Can we do a constant speed propeller?
And can we set the handedness of the propeller to RH?
Regards
Vivian Meazza
_
Andy Ross replied
> Vivian Meazza wrote:
> > How do we handle fuel in lbs and account for Avgas/JP4?
>
> For read access, you will find a level-lbs property also.
> But the only one you are allowed to change is the gallons
> one. There is a density-ppg property
Andy Ross wrote
> Now that the new release is out (yeah, that's my exuse...),
> I've finally checked in the new Nasal fuel code I've been
> working on, along with YASim changes to enable it. This
> hasn't been tested terribly well, so please let me know if I
> broke something. You should
Giles Robertson wrote
>
> Let's check the patent filing dates etc. Could just be that
> we have prior art. Can anybody get a date that nasal was
> originally committed?
>
> Giles Robertson
>
> > -Original Message-
> > From: Lee Elliott [mailto:[EMAIL PROTECTED]
> > Sent: 26 March 20
Jim Wilson
>
>
> "Curtis L. Olson" said:
>
> > Jim Wilson wrote:
> >
> > >How about this one? ;-)
> > >
> > >http://www.spiderbark.com/fgfs/barneymobile.png
> > >
> > >
> >
> > Is that the don't-ask-don't-tellicopter.
> >
>
> Haha! Is this what they call aviation innuendo? What about
Jim Wilson
>
> Vivian Meazza said:
>
> >
> >
> > Curtis L. Olson asked
> >
> > > Sent: 24 March 2004 15:36
> > > To: FlightGear developers discussions
> > > Subject: [Flightgear-devel] Official 0.9.4 release???
> > >
Curtis L. Olson asked
> Sent: 24 March 2004 15:36
> To: FlightGear developers discussions
> Subject: [Flightgear-devel] Official 0.9.4 release???
>
>
> I'm seeing a last minute flurry of people trying to get final model
> tweaks into the base package (which is good--great work
> guys![1]),
Jim Wilson wrote
>
> Erik Hofman said:
>
> > Vivian Meazza wrote:
> > > Erik wrote
> >
> > >>I was trying to get a 2d panel and 3d panel version mixed into one
> > >>subdirectory. Vivian reworked the seahawk to add a 3d cockpit
> &
Erik wrote
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Erik Hofman
> Sent: 24 March 2004 12:42
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] seahawk broke
>
>
> Curtis L. Olson wrote:
> > Erik,
> >
> > I get two
Norman Vine
>
>
> Frederic BOUVIER writes:
> >
> > Vivian Meazza wrote:
> >
> > > Frederic BOUVIER wrote
> > >
> > > > Vivian Meazza wrote:
> > > >
> > > > > > So to make it short, it seems to work ok.
Frederic BOUVIER wrote
>
> Vivian Meazza wrote:
>
> > Frederic BOUVIER wrote
> >
> > > Vivian Meazza wrote:
> > >
> > > > > So to make it short, it seems to work ok. What this
> change does
> > > > > not address y
Frederic BOUVIER wrote
> Vivian Meazza wrote:
>
> > > So to make it short, it seems to work ok. What this change does
> > > not address yet is the fact that we can see the ground over
> > > overcast layer through the exhaust beam of the hunter. I can try
s yet is the fact that we can see the ground
> over overcast layer through the exhaust beam of the hunter. I
> can try to look at this tonight and cure the --disable-clouds
> to really disable clouds.
>
> Cheers,
> -Fred
>
The exhaust plume of the Hun
from
> > approach mode to autoland mode, to name two examples.
>
>
> The way I want to see scripting end up is that the script
> controls the
> workflow, but most of this stuff is done using pain C++ code.
^^
> Th
> Melchior FRANZ
> I've added two shadows for the bo105 (after Jim beat me to it
> :-), but I can't animate them correctly. The situation is so
> strange that it must be a bug in fgfs.
>
> I've got objects "shadow_fuselage" and "shadow_rotor". Both
> are very flat, textured boxes. The strat
Lee Elliott wrote
>
> On Wednesday 17 March 2004 21:50, Vivian Meazza wrote: [snip...] ...
> > > I'd be inclined to hold off including the Sea Hawk, TSR-2
> and B-52,
> > > for the time being at least. The Sea Hawk is currently getting a
> > >
Lee Elliott wrote
> On Wednesday 17 March 2004 16:37, Curtis L. Olson wrote:
> > Curtis L. Olson wrote:
> > > 1. I'm growing less enthused with our aircraft alias
> naming system.
> > > I don't mind that we have the capability, but it becomes
> annoying to
> > > have 8 names for the same ai
David Megginson wrote
> Sent: 11 March 2004 16:05
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] New keybinding
>
>
> Vivian Meazza wrote:
>
> >>I've bound Ctrl-R to the radios dialog. I imagine that this
> >>will be a v
literally in the process of binding R/r for seat
raise/lower. Rather sounds like I'd better use L/l.
Regards
Vivian Meazza
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Jim wrote
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Jim Wilson
> Sent: 09 March 2004 19:31
> To: FlightGear developers discussions
> Subject: RE: [Flightgear-devel] heads up for 3D modelers -
> plib cvs issue
&g
Jim Wilson
> It occurred to me that our 3-D modelers might not all be
> running plib cvs.
> Andy came up with an excellent improvement to the ac3d
> loader/optimizer (new optimizer actually) that incorporates
> logic to automatically split vertices in two so that they go
> into seperate
Lee Elliott
> On Monday 08 March 2004 13:21, David Megginson wrote:
> > Vivian Meazza wrote:
> > > That could be useful. Could you let me have a copy?
> >
> > I'll send it via private e-mail. Also, for anyone
> interested in the
> > Hurricane (th
itfire once. I have no idea why it never showed up.
>
> I have a copy of his unfinished model, if anyone wants it.
>
>
That could be useful. Could you let me have a copy?
Regards
Vivian Meazza
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Melchior FRANZ wrote
> Sent: 07 March 2004 11:08
> To: [EMAIL PROTECTED]
> Subject: [Flightgear-devel] Re: Spitfire & Hurricane manuals
>
>
> * Vivian Meazza -- Sunday 07 March 2004 11:53:
> > Oddly enough, last weekend I found a book in my local
> books
Erik Hofman wrote
> Vivian Meazza wrote:
>
> > Oddly enough, last weekend I found a book in my local
> bookstore on the
> > Spitfire MkIIb, containing line drawings. I'll see if it's still
> > there. If it is, I could do a model especially with the inf
Erik Hofman wrote
> Vivian Meazza wrote:
> >
> >>Erik Hofman wrote
> >>
> >>http://home.clara.net/wolverine/BOB/misc/Spit_Hurri_Manuals.zip
> >>
> >
> >
> > Is this a hint ;-)?
>
> Yes.
>
> Erik
>
Oddly e
> Erik Hofman wrote
>
> http://home.clara.net/wolverine/BOB/misc/Spit_Hurri_Manuals.zip
>
Is this a hint ;-)?
Vivian Meazza
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Melchior wrote
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Melchior FRANZ
> Sent: 04 March 2004 08:58
> To: [EMAIL PROTECTED]
> Subject: [Flightgear-devel] Re: [BUG] Hunter noise & UV face
> singularity
>
&
ut the degenerated UV mapping faces. Not about
> duplicated vertices or bogus triangulation or something.
>
>
>
> > I can't remember what package Vivian used to create it - Blender or
> > AC3D -
> > Vivian?
>
> She uses AC3D.
HE :-)
Viv
gulation
> problems were apparent at all.
>
> I can't see anything obvious in AC3D that might be causing
> what's in that
> screen grab.
>
> I can't remember what package Vivian used to create it -
> Blender or AC3D -
> Vivian?
AC3D ver 4.08, then saved in ver 3.6 to remove the 'crease' token.
Regards
Vivian Meazza
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model, so I may have fixed it
already.
BTW - I use a Nvidia card, and I haven't seen the effect you describe. Do
you have a problem with importing exporting the AC3D scripts into AC3d? They
seem to import OK into AC3d here.
Regards
Vivian Meazza
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Martin Spott asked
> Do you experience the same ?
>
> http://weather.noaa.gov/weather/current/EDLN.html
>
> You don't have permission to access
> /weather/current/EDLN.html on this server.
>
>
> the same with KSFO and other airports,
g for non-YASim
> aircraft and the script can simply disable itself. And for
> the future, arbitrarily complicated fuel flow schemes can be
> implemented entirely in Nasal with no FDM support needed.
That's very sophisticated. All I need is the ability to set fuel values, but
this would be very interesting.
> I'll try to get this working tonight.
Thank you
Regards
Vivian Meazza
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able to
> change these
> values dynamically inside a FlightGear session.
>
We discussed changing fuel levels some little while ago in the context of
drop tanks. I too would like to do at least this for the Hunter model, but
in lbs please NOT US gal
Vivian Meazza wrote
>
> Andy Ross wrote
>
> > Vivian Meazza wrote:
> > > I think it should work, and it _looks_ as if it does:
> > certainly when
> > > you browse internal properties it looks right, but I can't set the
> > > second [1]
gt; pretty much offline for a couple days. If I have any pending
> business,
> patches, etc. (Fred, Jim, etc.) I will have to get back to it
> this weekend.
Congratulations. That should keep you busy for a while - well the next
eighteen years
Andy Ross wrote
> Vivian Meazza wrote:
> > I think it should work, and it _looks_ as if it does:
> certainly when
> > you browse internal properties it looks right, but I can't set the
> > second [1] tank to zero.
>
> I'm still fuzzy. Do you me
Andy Ross
>
>
> Vivian Meazza wrote:
> > I think it should work, and it _looks_ as if it does:
> certainly when
> > you browse internal properties it looks right, but I can't set the
> > second [1] tank to zero.
>
> I'm still fuzzy. Do you m
> Andy Ross
>
> Vivian Meazza wrote:
> > Yes, this problem was interesting. I set up 2 weights thus:
> >
> > /yasim/weights/tank-100gal-lbs[0] /yasim/weights/tank-100gal-lbs[1]
>
> Are you sure you got the definition right in the
> YASim configuration
Martin Spott wrote
>
> Melchior FRANZ <[EMAIL PROTECTED]> wrote:
> > * [EMAIL PROTECTED] -- Tuesday 17 February 2004 03:55:
> >> One question, why don't we use lower case g key for "gear
> up" and for
> >> "gear
> >> down"?
> >> Why do we also need the upper G key?
>
> > Now I can simpl
Lee Elliott wrote
> Just to help confuse things a little, j/k are for spoilers,
> iirc, but as
> speed-brakes aren't supported in YASim (yet;) I've used the
> spoiler control.
Kludged that one by using an extra, low lift, high drag flap on the
horizontal stabiliser in the Hunter. CTRL B t
> Andy Ross
> Vivian Meazza wrote:
> > I've just done some proof-of-principle work on drop tanks
> with YASim.
> > I set up some weight elements for the pylons and for the
> dry weight of
> > the tanks, and some fuel tanks to match. [...]
> > Howeve
Melchior FRANZ wrote
> * Martin Spott -- Monday 16 February 2004 23:12:
> > As memory serves (late evening ;) j/k are used for speed
> brakes on
> > some aircraft,
>
> See $FG_ROOT/Docs/keyboard/map.pdf for an overview of all
> general and aircraft specific keys. Yes, j and k are global
Martin Spott
>
> "Vivian Meazza" <[EMAIL PROTECTED]> wrote:
>
> > However, the bad news is that I can't set _one_ of the drop tank
> > weights to zero (odd that), and none of the tank fuel
> contents. I was
> > planning to use keys j/J
t in proceeding further unless I can set the tank contents to zero. With
that enabled I can produce a reasonable simulation pending the
implementation of a child fdm in YASim. I haven't been able to tackle JBSim
yet.
Advice would be welcome.
As a matter of interest, the list of controls lis
> Jim Wilson
> Sent: 13 February 2004 15:31
>
> David Megginson <[EMAIL PROTECTED]> said:
>
> > Jim Wilson wrote:
> >
> > > Yes it is. I'm probably being really dense, but I can't
> think of a
> > > reason why it would be important to know what the origin
> is in fdm
> > > coordinates. S
Jon Berndt
>
> >
> > Sounds VERY good. I'm sure you'll get round to it in due course.
> >
> > Vivian
>
> Did I say that? ;-)
>
> I think I may have a few weeks this summer *alone*. That's
> got "opportunity" written all over it.
>
Excellent. But summer is for real flying.
Vivian
___
Andy Ross wrote
>
> Lee Elliott wrote:
> > I think drop tanks would be feasible but it would need some thinking
> > about:)
> >
> > The fun bit will be counteracting the a/c manuevours after the tank
> > has dropped so it falls straight even though the a/c may be
> climbing
> > and banking.
Lee Elliott wrote
>
> On Saturday 14 February 2004 18:35, Vivian Meazza wrote:
> > > Andy Ross
> > >
> > > Lee Elliott wrote:
> > > > I think drop tanks would be feasible but it would need some
> > > > thinking
> > > &
Jon Berndt wrote
> One feature in JSBSim that I began and have not yet finished
> (pending other
> things) is a parent/child capability. You can (for instance)
> load a Mk82 on an F-16 and the physical effects of the Mk82
> will affect the F-16. The position is based on the position
> of th
> Andy Ross
> Lee Elliott wrote:
> > I think drop tanks would be feasible but it would need some thinking
> > about:)
> >
> > The fun bit will be counteracting the a/c manuevours after the tank
> > has dropped so it falls straight even though the a/c may be
> climbing
> > and banking.
>
> T
Norman Vine says
> Lee Elliott writes:
> >
> > On Friday 13 February 2004 22:27, Jon S Berndt wrote:
> > > Any chance of modeling wingtip vortices (when CL is high enough
> > > above some threshhold) and rocket engine exhaust?
> >
> >
> > Another possiblity would be some sort of particle o
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