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A340-600HGW (download at the first post)

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Re: A340-600HGW (download at the first post)

Postby Andino » Sun Jan 12, 2014 8:10 am

It works, but there is still nothing in the panel saying it does. You have only to click on the VS knob, and adjust the VS with the mouse wheel over that knob The only sign of it working is the needle at the MFD, signaling upwards or downwards.
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Re: A340-600HGW (download at the first post)

Postby Benny-DLH130 » Sun Jan 12, 2014 2:54 pm

Hi
@Andino:
Until now I only got the Navigation and Strobe Lights placed different…

I only had to make some corrections to the "A340-600HGW-avion.xml"…
Im not able to upload some files at the moment, so I just post it here…


So you can insert (inside the "A340-600HGW-avion.xml") the following under the Topic <!--navigation-->:

Code: Select all
<model>
<path>Aircraft/A340-600HGW/Models/lights/GreenLight.xml</path>
<name>Greenlight</name>     
<offsets>
<x-m> 7.1</x-m>
<y-m> 29.5</y-m>
<z-m>  1</z-m>       
</offsets>
</model>

<model>
<path>Aircraft/A340-600HGW/Models/lights/RedLight.xml</path>
<name>Redlight</name>     
<offsets>
<x-m> 7.1</x-m>
<y-m>-29.5</y-m>
<z-m>  1</z-m>     
</offsets>
</model>


<!--Strobe-->

<model>
<path>Aircraft/A340-600HGW/Models/lights/flash.xml</path>
<name>flashright</name>     
<offsets>
<x-m> 7.1</x-m>
<y-m> 29.7</y-m>
<z-m>  1</z-m>       
</offsets>
</model>

<model>
<path>Aircraft/A340-600HGW/Models/lights/flash.xml</path>
<name>flashleft</name>     
<offsets>
<x-m> 7.1</x-m>
<y-m>-29.7</y-m>
<z-m>  1</z-m>   
</offsets>
</model>

<model>
<path>Aircraft/A340-600HGW/Models/lights/flash.xml</path>
<name>flashtop</name>     
<offsets>
<x-m>-28.40</x-m>
<y-m>0.000</y-m>
<z-m>3.250</z-m>   
</offsets>
</model>


Im currently trying out to change the flash-frequencies…
As one can see in some youtube vids, the A346s strobes are doing 2 very short flashes every 2 seconds ….

greetz
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Sun Jan 12, 2014 5:49 pm

Hi Andino,

That click on vs did the trick.

I do not know the reference speeds for this plane, but at 100 kts i was still "hanging" above the runway. That seems a bit low stall speed to me.

Kind regards, Vincent
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Re: A340-600HGW (download at the first post)

Postby Andino » Sun Jan 12, 2014 8:42 pm

I have uploaded a new version with few corrections:
- Some little changes in the autopilot.
- A bug in the MFD, Now it shows the heading bug correctly.
- New lights postions (thanks to Benny).

There is still much work to do.
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Re: A340-600HGW (download at the first post)

Postby qhfreddy » Mon Jan 13, 2014 1:59 am

In regards to your concern Vincent, I was trying to solve that, and also improve the weight balance with a few modifications to the FDM, but I couldn't get the YASim solution to work with it.

Update/Edit:

I did a little work on Andino's FDM, and after some testing with the YASim command line solver and the sim, found that the wing was mounted quite far back on the aircraft. Also, the problem with the landing speeds seemed to be related to the flap lift ratio.

With that, I turned back to my broken FDM and fixed it. I have the landing speed at around 130kt with a reasonable load. Also, I tweaked the volumes of the engines in the sound.xml as they were rather quiet. Other smaller tweaks include moving the cockpit view slightly upwards, changing the passenger viewpoint, increasing the flap deployment time (it was VERY fast), and some engine RPM tweaks. I intend to do some testing as far as the range of the aircraft goes, to adjust the fuel consumption of the engine.

The three files in the .zip should be compatible with the most recent version, please tell me if they are not. (remember the sound.xml does go in the sound folder)
The sound tweaks are also included below.

download link:
https://drive.google.com/file/d/0B1e22HiqZ6TALUhMZnZjNjRNVU0/edit?usp=sharing

Code: Select all
        <engine>
            <name>left engine</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent2.wav</path>
            <mode>looped</mode>
            <condition>
                <property>engines/engine[0]/run</property>
            </condition>
            <pitch>
                <property>engines/engine[0]/n1</property>
                <offset>0</offset>
                <factor>0.013</factor>
                <min>0</min>
                <max>3</max>
            </pitch>
            <volume>
                <property>engines/engine[0]/thrust-lbs</property>
                <offset>-0.99</offset>
                <factor>0.00003</factor>
                <min>0.0</min>
                <max>1.2</max>
            </volume>
            <position>
                <x>0</x>
                <y>9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>right engine</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent2.wav</path>
            <mode>looped</mode>
            <condition>
                <property>engines/engine[1]/run</property>
            </condition>
            <pitch>
                <property>engines/engine[1]/n1</property>
                <offset>0</offset>
                <factor>0.013</factor>
                <min>0</min>
                <max>3</max>
            </pitch>
            <volume>
                <property>engines/engine[1]/thrust-lbs</property>
                <offset>-0.99</offset>
                <factor>0.00003</factor>
                <min>0.0</min>
                <max>1.2</max>
            </volume>
            <position>
                <x>0</x>
                <y>-9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>left n1</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent1.wav</path>
            <mode>looped</mode>
            <property>engines/engine[0]/rpm</property>
            <pitch>
                <property>engines/engine[0]/rpm</property>
                <offset>0.8</offset>
                <factor>0.01</factor>
                <min>0.0</min>
                <max>100.0</max>
            </pitch>
            <volume>
                <property>engines/engine[0]/rpm</property>
                <factor>0.1</factor>
                <min>0.0</min>
                <max>1</max>
            </volume>
            <volume>
                <property>sim/sound/Ovolume</property>
            </volume>
            <position>
                <x>0</x>
                <y>9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>right n1</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent1.wav</path>
            <mode>looped</mode>
            <property>engines/engine[1]/rpm</property>
            <volume>
                <property>engines/engine[1]/rpm</property>
                <factor>0.1</factor>
                <min>0.0</min>
                <max>1</max>
            </volume>
            <volume>
                <property>sim/sound/Ovolume</property>
            </volume>
            <pitch>
                <property>engines/engine[1]/rpm</property>
                <offset>0.8</offset>
                <factor>0.01</factor>
                <min>0.0</min>
                <max>100.0</max>
            </pitch>
            <position>
                <x>0</x>
                <y>-9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
Damn flared too long...
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Mon Jan 13, 2014 1:52 pm

Hello qhfreddy,

Tested this config, and it feels a lot better. With little fuel i stalled just below 120 and with a lot of fuel i had to keep 150 on glideslope, not to "sink through". That should be alright, although they may not be the exact numbers, which i do not know.

There is another thing that seems odd: Nose-up happens only at near stall speed. So the landings are quite flat. I would have expected a bit more nose-up at higher speeds, and a chance of tail strike at stall.

Kind regards, Vincent
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Re: A340-600HGW (download at the first post)

Postby qhfreddy » Tue Jan 14, 2014 7:11 am

Thanks for testing Vincent.

I did a bit of research on the speeds for approach/landing and these seemed to match the realistic ones fairly closely, although stall speed with a full load might be rather heavy.

I might test a bit with different flap lift ratios and YASim approach settings to refine it.

From what I have heard around other forums and from pilots is that the 340s and 330s are quite flat compared to Boeings on approach. I also tried to make the AoA be higher for approach but this led to very high AoA in cruise, which is not exactly realistic either. I'll have to play around with that some more.
Damn flared too long...
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Tue Jan 14, 2014 11:11 am

Hello qhfreddy,

If these planes land flatter, that is not by design, but pilot induced. The longer the plane, the less pilots should flare to avoid tail strike. This way they touchdown at a higher speed above stall. But if you would do a good flare, you would get a (near) tail strike.

If you watch landings on youtube, you would see something like this in the pitch profile:
- 200 kts approach to glide slope with 5 deg flaps: Some degrees nose-up
- Going onto glide slope: flattening out, but almost never nose-down.
- Slowing down on glide slope (even with more flaps): Gradual nose-up again.
- Flare: more nose-up (up to near tail strike, depending on landing technique)

I noticed that the 777 in flight gear also has too much nose-down on glide slope. But it goes nose-up at higher speeds than the a340 near touchdown.

I noticed that at startup there is fuel in the tail tank. That should not be. The plane should be in balance for take-off and landing with empty tail tank. This tank is only used to move the center of gravity aft in cruise. There is no fuel burnt from it. In descent the fuel is pumped back in the main tanks.

Btw. I noticed some opposite behaviour with the trim when putting fuel in the tail tank at cruise. When doing so the plane should want to go nose-up, so i need to trim down. But the opposite happens, i need to trim up in this plane in flightgear.

Overall i think the center of gravity is too much forward. There is constantly a lot of trim up, where it should be near center in level flight at reasonable speed (250-300 kts. Well, more near 300 i'd say).

Another thing is: AoA is not exactly the same as pitch. Pitch would be the angle the plane is at compared to the horizon. AoA is the angle at which the the air flows towards the wing. i.e. If pitch is 0 and you desc, the AoA is greater than zero (or less, i do not know which way they count). The other way around: if in climb pitch is up and you have enough speed the AoA can be near 0.

I hope this gives you some clues for what to change.

Kind regards, Vincent
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Re: A340-600HGW (download at the first post)

Postby FGRS » Tue Jan 14, 2014 12:33 pm

qhfreddy wrote in Mon Jan 13, 2014 1:59 am:In regards to your concern Vincent, I was trying to solve that, and also improve the weight balance with a few modifications to the FDM, but I couldn't get the YASim solution to work with it.

Update/Edit:

I did a little work on Andino's FDM, and after some testing with the YASim command line solver and the sim, found that the wing was mounted quite far back on the aircraft. Also, the problem with the landing speeds seemed to be related to the flap lift ratio.

With that, I turned back to my broken FDM and fixed it. I have the landing speed at around 130kt with a reasonable load. Also, I tweaked the volumes of the engines in the sound.xml as they were rather quiet. Other smaller tweaks include moving the cockpit view slightly upwards, changing the passenger viewpoint, increasing the flap deployment time (it was VERY fast), and some engine RPM tweaks. I intend to do some testing as far as the range of the aircraft goes, to adjust the fuel consumption of the engine.

The three files in the .zip should be compatible with the most recent version, please tell me if they are not. (remember the sound.xml does go in the sound folder)
The sound tweaks are also included below.

download link:
https://drive.google.com/file/d/0B1e22HiqZ6TALUhMZnZjNjRNVU0/edit?usp=sharing

Code: Select all
        <engine>
            <name>left engine</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent2.wav</path>
            <mode>looped</mode>
            <condition>
                <property>engines/engine[0]/run</property>
            </condition>
            <pitch>
                <property>engines/engine[0]/n1</property>
                <offset>0</offset>
                <factor>0.013</factor>
                <min>0</min>
                <max>3</max>
            </pitch>
            <volume>
                <property>engines/engine[0]/thrust-lbs</property>
                <offset>-0.99</offset>
                <factor>0.00003</factor>
                <min>0.0</min>
                <max>1.2</max>
            </volume>
            <position>
                <x>0</x>
                <y>9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>right engine</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent2.wav</path>
            <mode>looped</mode>
            <condition>
                <property>engines/engine[1]/run</property>
            </condition>
            <pitch>
                <property>engines/engine[1]/n1</property>
                <offset>0</offset>
                <factor>0.013</factor>
                <min>0</min>
                <max>3</max>
            </pitch>
            <volume>
                <property>engines/engine[1]/thrust-lbs</property>
                <offset>-0.99</offset>
                <factor>0.00003</factor>
                <min>0.0</min>
                <max>1.2</max>
            </volume>
            <position>
                <x>0</x>
                <y>-9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>left n1</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent1.wav</path>
            <mode>looped</mode>
            <property>engines/engine[0]/rpm</property>
            <pitch>
                <property>engines/engine[0]/rpm</property>
                <offset>0.8</offset>
                <factor>0.01</factor>
                <min>0.0</min>
                <max>100.0</max>
            </pitch>
            <volume>
                <property>engines/engine[0]/rpm</property>
                <factor>0.1</factor>
                <min>0.0</min>
                <max>1</max>
            </volume>
            <volume>
                <property>sim/sound/Ovolume</property>
            </volume>
            <position>
                <x>0</x>
                <y>9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>
        <engine>
            <name>right n1</name>
            <path>/Aircraft/A340-600HGW/Sounds/jet-trent1.wav</path>
            <mode>looped</mode>
            <property>engines/engine[1]/rpm</property>
            <volume>
                <property>engines/engine[1]/rpm</property>
                <factor>0.1</factor>
                <min>0.0</min>
                <max>1</max>
            </volume>
            <volume>
                <property>sim/sound/Ovolume</property>
            </volume>
            <pitch>
                <property>engines/engine[1]/rpm</property>
                <offset>0.8</offset>
                <factor>0.01</factor>
                <min>0.0</min>
                <max>100.0</max>
            </pitch>
            <position>
                <x>0</x>
                <y>-9.8</y>
                <z>-3</z>
            </position>
            <reference-dist>600.0</reference-dist>
            <max-dist>6000.0</max-dist>
        </engine>






Your changes made this aircraft,a complete flop. You have to blind or something not to see that with your changes,there's no front (nose) landing gear,so the plane sits on it's belly. The rotation of the engines ,at least the visible part of it, is still the same,normal on the left side and dead slow on the right. Sound still the same,only inside.... in my opinion,it's better without it.
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Tue Jan 14, 2014 12:54 pm

That is quite strange FGRS. I replaced the 3 files offered, and the plane is visually the same as it was. With gear and all engines spooling up equally.

Kind regards, Vincent
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Re: A340-600HGW (download at the first post)

Postby FGRS » Tue Jan 14, 2014 2:36 pm

KL-666 wrote in Tue Jan 14, 2014 12:54 pm:That is quite strange FGRS. I replaced the 3 files offered, and the plane is visually the same as it was. With gear and all engines spooling up equally.

Kind regards, Vincent



On mine,it was as I described. I had to delete the whole aircraft,cause I forgot to make a copy of it,in case of some problems... :-/
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Re: A340-600HGW (download at the first post)

Postby Benny-DLH130 » Tue Jan 14, 2014 2:41 pm

Hi,

when I use the new 3 xmls, there is also the nosegear missing, no sound difference and no rotation in engines 3 and 4 …:-(
greetz
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Tue Jan 14, 2014 6:09 pm

A wild guess for the broken planes: maybe you guys did not have the latest full download?

Kind regards, Vincent
KL-666
 
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Re: A340-600HGW (download at the first post)

Postby FGRS » Tue Jan 14, 2014 6:34 pm

KL-666 wrote in Tue Jan 14, 2014 6:09 pm:A wild guess for the broken planes: maybe you guys did not have the latest full download?

Kind regards, Vincent



Maybe...give us the link to it,and I will try it again.
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Re: A340-600HGW (download at the first post)

Postby KL-666 » Tue Jan 14, 2014 6:36 pm

Look at the title of this thread:

A340-600HGW (download at the first post)

In the first post should be the link.

Kind regards, Vincent
KL-666
 
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