Hello.
I want to develop a helicopter flight model, as far as i know, the
only FDM that hav support for it is Yasim, but i didn't found the
documentation about how to create the model for Yasim. Where should i
look.
thanks
IS
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I think I meant to ask about this ealier, but I don't recall any
responses, which probably means I never actually asked?
I know we have some minimal helicopter support in YASim, but does anyone
out there have any contacts or experience developing a more detailed
helicopter flight dynamics model
Chris Horler said:
> I wrote a patch to get simple helicopter animations to work on a slave
> machine.
>
> I didn't look into the source too much at first - I wrote most of the patch on
> the Linux Developer expo day.
>
> I now realise I missed something. I think the ExternalNet.cxx file is u
I wrote a patch to get simple helicopter animations to work on a slave
machine.
I didn't look into the source too much at first - I wrote most of the patch on
the Linux Developer expo day.
I now realise I missed something. I think the ExternalNet.cxx file is used
when the native protocol is u
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
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Maik Justus wrote:
> I am using this code instead the solver:
>
>applyDragFactor(Math::pow(15.7/1000, 1/SOLVE_TWEAK));
>applyLiftRatio(Math::pow(104, 1/SOLVE_TWEAK));
>
> I took the values from the c172.
Don't include the SOLVE_TWEAK bit. That exists to "slow down" the
convergence
Hi Andy,
Andy Ross wrote:
Since the helicopter mechanism doesn't use the solver, you'll need to
fudge a factor that makes sense. The actual number is going to depend
in sensitive ways on the size and shape of the aircraft and will
probably be impossible to guess in practice (this, after all, w
[Woo hoo! Check it out: two posts in two days! I'm back in the game!
Amusingly, I'm also employed again. I wonder if there's a connection?]
Maik Justus wrote:
> I am not sure if the stabs are working correct without the solver. I
> tried to use fixed values if you specify no wing and hstab, but
Hi
Maik Justus wrote:
The helicopter simulation is not finished yet. I will describe later,
which functions/ effects are totally missing or simplified.
Here it is:
Missing:
-Downwash
-Effect on stabs
-Effect on rotor itself
-Effect on ground (ground effect)
-Engine (The needed power
On 10/17/03 at 1:11 PM David Megginson wrote:
>David Luff writes:
>
> > FWIW, I got sudden yaw oscilations as you describe for no apparent
> > reason as well.
> >
> > I've no idea how to fly a heli though!!!
>
>Nor do I, but I'd expect any strange oscillations to happen at very
>low or very high
Hello David,
I will try to get the oscillations. Maybe I am able to change the
bo105.xml to avoid them.
Maik
David Megginson schrieb:
David Luff writes:
> FWIW, I got sudden yaw oscilations as you describe for no apparent
> reason as well.
>
> I've no idea how to fly a heli though!!!
Nor do
David Luff writes:
> FWIW, I got sudden yaw oscilations as you describe for no apparent
> reason as well.
>
> I've no idea how to fly a heli though!!!
Nor do I, but I'd expect any strange oscillations to happen at very
low or very high airspeed, not at a medium cruise speed. I just
rebuilt
On 10/17/03 at 9:24 AM David Megginson wrote:
>Martin Spott writes:
>
> > Very different here. The indicators on the HUD were moving and the heli
> > flies very calm. Did you recompile the stuff from scratch ?
>
>That's worth a shot -- I'll try a make clean; make in SimGear and
>FlightGear. I'll
Martin Spott writes:
> Very different here. The indicators on the HUD were moving and the heli
> flies very calm. Did you recompile the stuff from scratch ?
That's worth a shot -- I'll try a make clean; make in SimGear and
FlightGear. I'll just confirm that it is the bo105 that everyone else
i
Hi Jim
first: thanks to everyone who helped to put this code into the
flightgear codebase.
Jim Wilson schrieb:
What I have noticed is that overspeed effects don't seem to show up (negative
speed on the blades coming back should cause a stall) and if you get it up to
far enough over 200 it seems
David Megginson <[EMAIL PROTECTED]> wrote:
> I've tried it with two different controllers and seem the same effect
> -- furthermore, the control-position indicators on the HUD are not
> moving, suggesting that the flutter isn't coming from there.
Very different here. The indicators on the HUD wer
David Megginson <[EMAIL PROTECTED]> said:
> Jim Wilson writes:
>
> > This isn't happening here. How are you controlling the antitorque
> > (rudder)? Maybe the problem is in the control input?
>
> I've tried it with two different controllers and seem the same effect
> -- furthermore, the cont
Jim Wilson writes:
> This isn't happening here. How are you controlling the antitorque
> (rudder)? Maybe the problem is in the control input?
I've tried it with two different controllers and seem the same effect
-- furthermore, the control-position indicators on the HUD are not
moving, sugges
David Megginson <[EMAIL PROTECTED]> wrote:
> Let's all give Maik a round of applause for this one.
Indeed ! I'd say: "When dreams come true ",
Martin.
--
Unix _IS_ user friendly - it's just selective about who its friends are !
--
David Megginson <[EMAIL PROTECTED]> said:
> I can (just barely) fly it -- I'll try hooking up my rudder pedals to
> see if that makes it easier. One thing I don't understand is that I
> get a lot of small, rapid fishtail oscillations, even when the
> controls are perfectly still and the forward a
I've been been playing with Maik's most excellent helicopter model,
now in CVS:
fgfs --aircraft=bo105
I can (just barely) fly it -- I'll try hooking up my rudder pedals to
see if that makes it easier. One thing I don't understand is that I
get a lot of small, rapid fishtail oscillations, even
> > Here's a helicopter wav file that I got from the internet several months
> > ago. Can't remember where :(
> >
> > http://home.comcast.net/~davidculp2/Helo.wav
>
> Do you have any recollection of the copyright?
No. I'll search the web and see if I can find the source again.
Dave
--
***
David Culp wrote:
Here's a helicopter wav file that I got from the internet several months ago.
Can't remember where :(
http://home.comcast.net/~davidculp2/Helo.wav
Do you have any recollection of the copyright?
Erik
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Here's a helicopter wav file that I got from the internet several months ago.
Can't remember where :(
http://home.comcast.net/~davidculp2/Helo.wav
Dave
--
David Culp
davidculp2[at]comcast.net
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Erez Boym <[EMAIL PROTECTED]> wrote:
> Where can I find information about "Aaron Kahn's heli
> FDM" ?
http://autopilot.sf.net/
It's not a standalone FDM for being plugged into FlightGear, at the moment
it's a small standalone program with _very_ simplistic graphics display
waiting for being cle
ss I can
convert it to AC format I will not be able to submit
that model.
Thanks
Erez
To: [EMAIL PROTECTED]
From: Martin Spott <[EMAIL PROTECTED]>
Subject: Re: [Flightgear-devel] Helicopter flight
model
Date: 14 Mar 2003 18:52:56 GMT
Organization: home
Reply-To: [EMAIL PROTECTED]
"J
"Jim Wilson" <[EMAIL PROTECTED]> wrote:
> Erez Boym <[EMAIL PROTECTED]> said:
>> I have built a grate CH53D helicopter and really like
>> to fly it as a helicopter and not as a ufo ;-)
>>
> That's a project no one has taken on yet. The sea stallion might be a tough
> one to start with. It's qu
Erez Boym <[EMAIL PROTECTED]> said:
> I have built a grate CH53D helicopter and really like
> to fly it as a helicopter and not as a ufo ;-)
>
That's a project no one has taken on yet. The sea stallion might be a tough
one to start with. It's quite a machine.
Best,
Jim
_
Hi,
Do we have a helicopter FDM ?
I have built a grate CH53D helicopter and really like
to fly it as a helicopter and not as a ufo ;-)
Thanks
Erez
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