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Russian Helicopter Mil Mi-6

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Re: Mil mi-6...

Postby MyName » Sat Jun 20, 2009 9:25 pm

HHS wrote:
yurik_nsk wrote:
The airfoil datas are important because we need the lift and drag curves- they determine a lot the flight behaviour of the helicopter.


All data, airfoils, Cx, Cy, a lot of details there are here: http://www.airwar.ru/other/bibl/mi-6to.html

But all in Russian, unfortunatelly...



Oh :shock: But unfortunately in russian...

That's why there's Google Translate. Poor as it can be, but it helps :mrgreen:
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Re: Mil mi-6...

Postby gooneybird » Sat Jun 20, 2009 9:55 pm

I use the FoxLingo toolbar with Firefox, it uses multiple translation services.
Sometimes you can make more sense of something by using more than one translation.

It can be found here:
http://www.foxlingo.com/
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Re: Mil mi-6...

Postby Blender3D » Sun Jun 21, 2009 10:49 am

Even if I know, how I can translate it... how do you open a *.djvu-file?

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Re: Mil mi-6...

Postby gooneybird » Sun Jun 21, 2009 2:57 pm

Blender3D wrote:Even if I know, how I can translate it... how do you open a *.djvu-file?

--Blender3D


http://djvu.org/resources/

Also try your graphics applications some will open them.
If you are on windows Irfanview will open them http://www.irfanview.net/
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Re: Mil mi-6...

Postby yurik_nsk » Sun Jun 21, 2009 4:05 pm

how do you open a *.djvu-file?


viewer for windows:
http://www.djvu-soft.narod.ru/soft/wind ... 0_noyb.rar

About djvu:
http://en.wikipedia.org/wiki/DjVu
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Re: Mil mi-6...

Postby Blender3D » Mon Jun 22, 2009 8:53 am

Ok... I managed to open the file. Thanks a lot for that information paper. Despite of the Russian language this paper is very useful because it contains very detailed blueprints of the helicopter. I think I'll have to remodel it.

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Re: Mil mi-6...

Postby Blender3D » Tue Jun 23, 2009 12:39 pm

hello again, guys....

At the moment, I have a little problem with the animations. I want that the rotor rotates, when the engine is running. So I copied some Files and so on from the bo105 and S76C++. Then I made them fit but the animation still doesn't work. Can anybody tell me what I am doing wrong? I don't get this from the wiki.

Here is the latest version of my helicopter: http://www.files.to/get/714112/4lywy33792

The engine starts with "}".

--Blender3D
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Re: Mil mi-6...

Postby Blender3D » Thu Jun 25, 2009 12:05 pm

Doesn't anybody have any idea? Or am I the only one where this doesn't work? BTW: the problem exists even in the new version.

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Re: Mil mi-6...

Postby HHS » Thu Jun 25, 2009 12:49 pm

Hi,

1. The engine does turn the rotors but very slow. There must be something not right with the yasim-fdm.

2. your animation-code isn't complete:
you need something like:
Code: Select all
<animation>
        <type>rotate</type>
        <object-name>blade1</object-name>
        <property>rotors/main/blade/position-deg</property>
        <center>
            <x-m>0</x-m>
            <y-m>0</y-m>
            <z-m>0.151</z-m>
        </center>
        <axis>
            <x>0.0</x>
            <y>0.0</y>
            <z>1.0</z>
        </axis>
    </animation>


or

Code: Select all
<animation>
        <type>spin</type>
        <object-name>TailHub</object-name>
        <property>rotors/tail/rpm</property>
        <center>
            <x-m>8.120</x-m>
            <y-m>-0.377</y-m>
            <z-m>0.424</z-m>
        </center>
        <axis>
            <x>0.0</x>
            <y>1.0</y>
            <z>0.0</z>
        </axis>
    </animation>

in the rotor-anmation.xml

I would highly recommend you to read the model-how-to under data/ Docs.

Regards
HHS
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Re: Mil mi-6...

Postby Blender3D » Mon Jun 29, 2009 1:17 pm

Ok... now I know, why the rotor isn't turning: The engine doesn't turn. And the rotor is turned by the engine, so if the engine doesn't turn, the rotor doesn't turn. I'll try to write some Nasal to get a working engine.
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Re: Mil mi-6...

Postby HHS » Mon Jun 29, 2009 1:33 pm

Blender3D wrote:Ok... now I know, why the rotor isn't turning: The engine doesn't turn. And the rotor is turned by the engine, so if the engine doesn't turn, the rotor doesn't turn. I'll try to write some Nasal to get a working engine.


you have already an engine in nasal in your files. It turns but very slow (4-12rpm). Even if you have a working engine with rotor: it won't fly as the cg is not there where it should be....
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Re: Mil mi-6...

Postby Blender3D » Mon Jun 29, 2009 1:45 pm

ok... now I've fixed the position of the Rotor-center. I think before I can fly, I'll have to make the tail rotor spinning.

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Re: Mil mi-6...

Postby Blender3D » Tue Jun 30, 2009 9:14 am

Now the tailrotor is allright. But I still don't get the engine working. I've tried several *.nas from other helicopters but it just doesn't work. Can anybody explain, what exactly the Nasal script has to do to get the engine running?

--Blender3D
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Re: Mil mi-6...

Postby Blender3D » Thu Jul 02, 2009 3:13 pm

Hey everybody!!

I got the engines working. I used the *.nas files from the apache. (Thanks to its author). My failure was that I just copied the engine-parts of the nasal files. But I forgot to copy the electricals and so on. BTW: It helped a lot to enter the electrical.nas into the *-set.xml. Now that the engine is working, there are just a few more problems:
a) How can I change the turning direction of the rotors to clockwise?
b) I've placed the camera of Blender in Blender so that it has the pilot's view. And then I copied the coordinates from Blender into the -set.xml. But the camera still isn't in the right place. how can that be and how do you get the coordinates for the cockpit-camera?

--Blender3D
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Re: Mil mi-6...

Postby Blender3D » Fri Jul 03, 2009 4:36 pm

Ok... Problem a) is solved! I had to change the rpm from I think 293rpm to -293rpm.

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