the best,
David
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AP control), you have to
know where that circuit breaker is and be ready to grab it fast.
Also, when the AP sounds an alarm and disengages, it can leave you in
some pretty bizarre trim situations that require a lot of control
pressure to correct.
All the best,
David
--
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David Megginson writes:
From what I understand, one of the other joys of a multi-axis
autopilot is the risk of runway elevator trim.
For runway read runaway.
All the best,
David
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when I try to start it in cold weather.
Let me know when you find the mistakes that (I'm sure) are present.
All the best,
David
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the
747-yasim.
Let me know if it's better now.
All the best,
David
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both fall off, the aircraft's operating height is reduced
and there is an increase in fuel consumption per mile.
All the best,
David
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and the flare lasts forever.
All the best,
David
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edge flaps aren't implemented at this moment make
it fly a bit itchy.
I was actually making a joke. I found the F-16 very easy to handle,
even without a flight computer.
All the best,
David
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no
matter what.
Exactly -- it seems to touch down at just a little over 100kt. What
is the typical approach speed for an F-16?
All the best,
David
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100% brakes right away -- use rudder pedals, or bind an
axis on your input device.
All the best,
David
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or simulated, in well under 500 feet.
All the best,
David
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the nose and
the plane descends, you're on the far side of the stall curve, and
raising the nose will help you descend faster (hopefully, you're only
a couple of feet up at this point).
All the best,
David
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across the
runway instead of along it. It should be easily doable with the
200-foot wide runway, but I haven't quite succeeded yet.
All the best,
David
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the plane's not
certified for spins or snap-rolls (and I'm not trained in aerobatics
anyway), I'm not going to try.
All the best,
David
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with higher wing loading than the 172,
so it comes down faster when I need it to.
All the best,
David
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would be more likely to allow.
All the best,
David
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I just found this:
http://www.me.psu.edu/me415/fall01/boeing2/
It's a little old -- apologies if the link has already been posted.
All the best,
David
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Curtis L. Olson writes:
I remember exactly 0% of the flight or the airport,
... because you were unconscious due to hypoxia? ...
but my family flew into La Paz when I was 5.
All the best,
David
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for a
short day trip? I'd especially like to overfly Hastings, where my
wife and I spent six weeks of our honeymoon in a snug little flat in
1988. I'd also be grateful for pointers to Web sites with info on
rules and procedures for flying in the UK.
Thanks, and all the best,
David
--
David
Jim Wilson writes:
Here's a shot of the p51d as is so far.
http://www.spiderbark.com/fgfs/p51dshot7.png
Just finished (most of) the exterior texturing.
Very nice.
All the best,
David
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like a great resource.
All the best,
David
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of the training won't be). At the Ottawa
Flying Club, you can get a 30-minute intro flight in a Cessna 150 for
CAD 49.00, which is about EUR 32.00. You cannot even get lunch for
that in London or New York.
All the best,
David
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anybody object to including these into the code?
Now that Erik is the newest sucker^H^H^H^H^H^Hco-maintainer, feel free
to send him patches to him as well as Curt and me.
Curt prefers complete files and I prefer diffs -- what will Erik
choose?
All the best,
David
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don't include any duplicate values in
the cycle.
All the best,
David
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and relative orientations for each lifting
surface. Then, if the right wing were producing more lift than the
left, you would have a left roll; if the right wing were also
producing more drag, you would have a right yaw; and so on.
All the best,
David
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engines are faking
it just as much as YASim is -- they just generally have more complete
data to start with.
All the best,
David
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,
David
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of surfaces.
All the best,
David
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Tony Peden writes:
How would we specify the characteristics of each of those surfaces?
Do you mean the position/orientation, the shape, or the aerodynamic
behaviour?
All the best,
David
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because of the tradeoffs
between typing and browsing. For the typists, it's best to keep
the tree as flat as possible; for the browsers, it's best to keep the
tree nodes as uncluttered as possible. Those two goals are mutually
exclusive.
All the best,
David
--
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. :-)
In the meantime, there is 3 arcsec SRTM data for Canada and Mexico, so
we can join the club.
All the best,
David
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., but the 3 arcsec data covers
all of North America, as far as I can see.
All the best,
David
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in summer as well, probably with a
Tiger Moth. You can do this without any flying license.
Really? In Canada, you need a license even for an ultralight or a
glider.
All the best,
David
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that that's not necessary using the vmap0 data, since the world
land mass is already split up into manageable chunks. The Great Lakes
and major North American rivers are also in the right place with
vmap0, but that's another discussion.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http
Frederic Bouvier writes:
from my understanding :
360 degres = 44000km
1 degre = 122.22km
1 minute = 2.037km
1 second = 0.033km
Let's keep it simple. 1 minute of latitude is one nautical mile --
that's its definition.
All the best,
David
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,
David
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days ago I
hadn't known that the Canadian data were available.
All the best,
David
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, because the airplane around you is part of
the scene graph instead of a flat picture stuck in front of it.
You can toggle the 3D model with the /sim/view/internal property
(false to disable the 3D model).
All the best,
David
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interested in extending our current database of navaids,
fixes, airports, and ATC frequencies -- feel free to contribute
anything that's missing.
There's more as well, including scripting, but this should make a good
start.
All the best,
David
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my resume,
attached to this message.)
Welcome. Please feel free to spend some time looking over the code
you're interested in helping with, and to post any questions you have
to this list.
All the best,
David
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house) and for
helping to liberate the Netherlands at the end of the war. The result
of all this is that we're not all that inclined to make Dutch jokes.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com
, or whatever, will make this easier, I can move to
that.
Here are the scripts to get waypoints into and out of a Magellan
315/320:
http://www.inet.bg/~zezo/mag/
All the best,
David
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how your first flight goes.
All the best,
David
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the light down 30 deg from the
horizontal, gave it a narrow width and maybe a 100 ft range, and made
it fairly dim, you wouldn't be too far off.
All the best,
David
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/
control-setting axis=/controls/mixture[0] value=0.75/
control-setting axis=/controls/elevator value=0.1/
/cruise
I recommend that other people designing YASim flight models try
something similar.
All the best,
David
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the elevator property solved the
problem. I don't know why it wasn't trimming for 0 elevator/elevator
trim.
All the best,
David
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wheel in cruise and set that value
as a control input to the cruise configuration.
That's very helpful -- thanks. Note that the small planes I've flown
tend to use a bit of forward (nose-down) trim in cruise, not nose-up.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http
, and MSFS, and we'd end up with a much
bigger pool of contributors.
Hmm. Maybe I'll start on that.
All the best,
David
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, or just the specific representation of it in the
config files? I know that Microsoft (for example) has not been able
to enforce IP rights over their file formats. Besides, if our data
were GPL'd, we'd have to prove that we had the right to do that in the
first place.
All the best,
David
--
David
as far as
changing locomotive shapes slightly to make rip-off models look really
bad.
That's why I prefer public domain even to open source -- people spend
way too long worrying about that kind of thing.
All the best,
David
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not be pleased either.
All the best,
David
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and the double needle points to the station
tuned in nav-radio #2.
Are you thinking of an RMI?
All the best,
David
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-- with
primitive equipment and no navigator, the pilot workload would be
fairly high, and two needles would help a lot for triangulating a
position (especially if the pilot would otherwise have to reach behind
the seat to change frequencies).
All the best,
David
--
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response at higher
deflections.
I'm not sure that I understand the problem. As soon as you move the
control, it is no longer at zero and will get a gradually increasing
response.
All the best,
David
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Major A writes:
Yes, but wouldn't it be better to have at least a small amount of
control around the centre?
You do. Unlike a dead zone, this approach has no location where
moving the joystick will not produce some kind of input.
All the best,
David
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for modelling an
engine-out in a twin.
All the best,
David
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(instead of updating manually), we can set it up to
update, say, every 2 seconds instead of every frame.
All the best,
David
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,
David
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David Luff writes:
OK, that's it!!! - ATC did *not* break TuxRacer ;-)
Are you sure?
All the best,
David
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? There have been instances where I
have wanted to do this, but I don't think it worked.
It's doable, but complicated. Let me know what you're thinking of.
All the best,
David
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mayor of New York or San Francisco, or
you might see the Chrysler Building or Alcatraz coming down next.
Note especially that this was done in the middle of the night with no
prior notice -- even the FAA didn't know until after the fact.
All the best,
David
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David Megginson, [EMAIL PROTECTED
will no doubt write a Punctuation
programming language, using only the characters [EMAIL PROTECTED]*() (above 0-9
on the U.S. keyboard), as a pure act of spite to try to split the Perl
community.
All the best,
David
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similar)?
3. Switches
---
Note that Curt's electrical system has a /controls/switches subtree,
while the recent rewrite has a /controls/lighting subtree. We need to
choose one or the other.
All the best,
David
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Jonathan Polley writes:
I am waiting for the programming language for amateur radio operators,
Morse. There is nothing like programming in dots and dashes!
.. -.. --- -. - --. . - .. -
All the best,
David
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| xargs grep /controls/mixture
and so on. I find 62 references to /controls/throttle alone.
I am willing to help.
All the best,
David
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(it directly
controls propeller speed, not pitch).
All the best,
David
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zillions
of property names this morning, mainly in the base package. Try a new
checkout.
All the best,
David
p.s. cd $FG_ROOT
find . -name '*.xml' -print | xargs etags
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years or so. With a constant-speed prop, the governor will attempt
to maintain a constant RPM across a range of throttle settings by
constantly varying the propeller pitch.
All the best,
David
--
David Megginson, [EMAIL PROTECTED], http://www.megginson.com
that uses the property
/sim/log-level
with an integer value.
However, in fg_props.cxx, FlightGear also uses
/sim/logging/priority
/sim/logging/classes
with string values (I added those a long time ago). I'm not sure how
the two interact.
All the best,
David
--
David Megginson, [EMAIL
,
FGControls::set_mixture));
// and so on ...
}
All the best,
David
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event
aircraft
autopilot
io
clipper
network
You can also use one of the values all or none.
All the best,
David
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Erik Hofman writes:
Is there still no replacement function to do this kind of operation in a
C++ string?
strstream would do the trick, but not all compilers support it yet.
All the best,
David
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Jim Wilson writes:
The magnetos are now defaulted to position 2 (Left) instead of 0
(Off). Was that intentional? Is there anything else in global
preferences not mentioned in the log?
Is that not where they used to be? If not, we can put them back.
All the best,
David
--
David
Jim Wilson writes:
No, they were at 0, which is what makes sense.
Ah -- they must have been set to 2 in the individual aircraft config
files, then.
All the best,
David
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already.
All the best,
David
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to that point I didn't feel so crowded
any more.
Now, will she hate me when I sell the car to pay for the
lessons...?!
Make sure she gets at least 25-50% of the proceeds for something *she*
wants (and save a bit of a reserve for the transit passes).
All the best,
David
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,
David
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with
a single surface is lost. Unfortunately, Steve is not willing to
accept a patch to change this behaviour.
All the best,
David
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Jim Wilson writes:
Can we bypass this by doing our own ac loader in simgear? I guess
I need to understand better what the optimization gives us.
Essentially nothing.
All the best,
David
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climate change will catch up with us
first).
All the best,
David
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it by
setting the
/instrumentation/attitude-indicator/config/tumble-flag
property to false in your $HOME/.fgfsrc.
All the best,
David
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).
All the best,
David
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working on the caravan in 3DS Max - another
behemoth of an app but hopefully I will get it finished this year.
That would be a nice plane to add. We have one on the north field at
CYOW, and it's a big monster of a single.
All the best,
David
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might find that the lack of a UV editor makes life
fairly difficult.
All the best,
David
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David Culp writes:
This is a step towards random failures too?
A failure manager is on my TODO list.
All the best,
David
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the best,
David
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for the
next plib release before switching our model format over.
All the best,
David
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Curtis L. Olson writes:
I just tagged the 0.9.2 release in CVS so I guess that's it. Any
further changes will have to go into the next release.
Congrats. So it's OK to make major changes now?
All the best,
David
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several.
All the best,
David
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the
autopilot leaves the trim where it is when disabled.
That's what happens in real life as well -- if the plane is in
turbulence, and the AP has to give up, it might leave the trim in a
totally ridiculous position.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http
just over 4 inhg at idle and approaching 5 inhg at
full throttle.
Excellent.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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just guessing, of course, we should do the
auto-correction.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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or FAA data should stand as-is,
for example. For Robin Peel's data, we should fix things only when
there is a known problem.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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is (indirectly, through suppliers like Jepp) the
basis for the GPS databases that GA and the airlines use.
It might be interesting to look at some examples where the FAA and
DAFIF data disagrees -- what are some of the most serious ones?
All the best,
David
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David Megginson, [EMAIL PROTECTED
not needed. The hash table does not
own the property node pointers, and trying to delete them twice will
cause a segfault.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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[EMAIL
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windows, hazy air, and a need to
concentrate on flying the plane (I didn't usually look through the
viewfinder):
http://www.megginson.com/private/2003-05-28-soo-trip/
All the best,
David
--
David Megginson, [EMAIL PROTECTED], http://www.megginson.com
to
the stratosphere, where it spreads out into an anvil), and if you're
underneath, you can see the heavy rain showers and possibly lightning.
When you're IFR in IMC, you can fly into one with no warning and
possibly tear your plane to pieces.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http
Erik Hofman writes:
Nice visual system!
We'll get there.
All the best,
David
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David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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