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aircraft CARRIER questions

Postby DavidZhu » Sat Jul 17, 2010 10:35 pm

Hello guys,

I have a couple of questions regarding aircraft carriers over the MP server.

1. If I use an F14 and I start from a carrier, can anyone else see that carrier that i started on? In other words, can others land on my carrier as well? Can they see it?

2. I'm having trouble viewing the MPCarriers over MP.
I read this- http://wiki.flightgear.org/index.php/Carrier_over_MP , and it says to put this following line in my terminal when Im launching FG (im using linux)-- --prop:/sim/mp-carriers/nimitz-callsign=<callsign of the mp-nimitz player>

Regarding that command, is /sim/mp-carriers a path in my fgfs folder? Because I searched all over and I cannot find a "sim" folder anywhere! I can't view the public MPCarriers over the server.. :cry:

Could anyone explain to me what that path means, and what I have to look for so i can change that path to fit my situation.

Also, what do I need to download? Just the MPCarrier folder from the FG Aircraft website list, right? And then put that folder within my Aircrafts folder, right? Is taht all? What else?


Its so frustrating not getting this to work. Thanks guys for your help, and hopefully I'll be landing on some public carriers sooN! Thanks!
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Re: aircraft CARRIER questions

Postby AndersG » Sun Jul 18, 2010 8:34 am

DavidZhu wrote:Hello guys,
1. If I use an F14 and I start from a carrier, can anyone else see that carrier that i started on? In other words, can others land on my carrier as well? Can they see it?


No.

DavidZhu wrote:2. I'm having trouble viewing the MPCarriers over MP.
I read this- http://wiki.flightgear.org/index.php/Carrier_over_MP , and it says to put this following line in my terminal when Im launching FG (im using linux)-- --prop:/sim/mp-carriers/nimitz-callsign=<callsign of the mp-nimitz player>


That part is obsolete. Use the Network->MPCarrier dialog instead, it will list any available MP carriers. Note that the corresponding carrier AI scenarios needs to be active. That is, to use/see MPNimitz you need to have the nimitz_demo AI scenario active, and to use/see MPVinson you need to have the AI scenario vinson_demo active.

DavidZhu wrote:Regarding that command, is /sim/mp-carriers a path in my fgfs folder? Because I searched all over and I cannot find a "sim" folder anywhere! I can't view the public MPCarriers over the server.. :cry:


/sim/mp-carriers/nimitz-callsign is a property in FlightGear's internal property tree. Use the property prowser (File->"Browse internal properties") to explore the property tree.

DavidZhu wrote:Also, what do I need to download? Just the MPCarrier folder from the FG Aircraft website list, right? And then put that folder within my Aircrafts folder, right? Is taht all? What else?


That should be all you need. However, the MPCarrier version included in 2.0.0 has a bug: except for mp-vinson the carrier commander "aircraft" sends too little data so the other carriers do not work correctly. Check the text console for error messages from MPCarrier.

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Re: aircraft CARRIER questions

Postby someguy » Sun Jul 18, 2010 3:25 pm

David, regarding your first question: each user has his own AI carriers, and they are not visible to other users. By default, everyone's carriers start from the same location upon spawning into the sim, but they're moving. Unless two people happen to spawn at exactly the same time, their AI carriers are out of sync and will be in different places.

HOWEVER...many of us simulate sharing the Nimitz by setting its speed to zero in /data/AI/nimitz_demo.xml. We're still each on our own carriers, but they're all in the same place, and not moving.
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Re: aircraft CARRIER questions

Postby DavidZhu » Sun Jul 18, 2010 8:30 pm

Thank you guys for your replies! They are very informative and helpful.

I got 2 more simple questions-

@AndersG, when I am selecting the MPCarrier in the dialog box in FG, does "X" mean that it is selected? Or does it mean that it is excluded?

and

@someguy, you think its worth stopping the carrier? cause i personally think its more exciting landing "diagonal" when the carrier is moving... IMHO
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Re: aircraft CARRIER questions

Postby jack » Mon Jul 19, 2010 1:39 am

DavidZhu wrote:when I am selecting the MPCarrier in the dialog box in FG, does "X" mean that it is selected? Or does it mean that it is excluded?


Yes, the X means that the carrier is selected.

you think its worth stopping the carrier? cause i personally think its more exciting landing "diagonal" when the carrier is moving... IMHO


Many people stop the carrier. The reason most people stop it, is to keep their carrier in sync with other people's carriers, enabling multiple people to be on the same carrier via multiplayer.

If you wish to stop your carrier, do the below:

Look for this tag in the nimitz_demo.xml, in data>ai. There should be two instances of the below tag.
Code: Select all
<speed>10</speed>


Change 10 to 0. It should now look like this:
Code: Select all
<speed>0</speed>


If my instructions are confusing, just replace all the text in the nimitz_demo.xml with this:
Code: Select all
<?xml version="1.0"?>
  <PropertyList>
    <scenario>
      <description>
    x, y, z-offset-m   The distance in meters of the Fresnel Lens
                       Optical Landing System (FLOLS) from the
             carrier model origin.
    max-lat, min-lat   Defines an operating box in terms of the
                       max and min lat excursions from the start
             position
    max-lon, min-lon   Defines an operating box in terms of the
                       max and min lon excursions from the start
             position
    TACAN-channel-ID   Defines a TACAN channel for display
                       purposes only
      </description>

      <entry>
        <type>carrier</type>
        <name>Nimitz</name>
        <pennant-number>CVN-68</pennant-number>
        <TACAN-channel-ID>029Y</TACAN-channel-ID>
        <model>Models/Geometry/Nimitz/nimitz.xml</model>
        <wire>wire-1</wire>
        <wire>wire-2</wire>
        <wire>wire-3</wire>
        <wire>wire-4</wire>
        <catapult>cat-1</catapult>
        <catapult>cat-2</catapult>
        <catapult>cat-3</catapult>
        <catapult>cat-4</catapult>
        <!---->
        <solid>Deck-1</solid>
        <solid>Deck-2</solid>
        <solid>Deck-3</solid>
        <solid>Deck-4</solid>
        <solid>Deck-5</solid>
        <solid>Deck-6</solid>
        <solid>Deck-9</solid>
        <solid>Deck-10</solid>
        <solid>Deck-11</solid>
        <solid>Deck-12</solid>
        <solid>Round-down</solid>
        <solid>JBD-1</solid>
        <solid>JBD-2</solid>
        <solid>JBD-3</solid>
        <solid>JBD-4</solid>
        <solid>Elevator-1-Deck</solid>
        <solid>Elevator-2-Deck</solid>
        <solid>Elevator-3-Deck</solid>
        <solid>Elevator-4-Deck</solid>
        <solid>Door-Fairing-2</solid>
        <solid>Door-Fairing-3</solid>
        <solid>Hangar</solid>
        <latitude>37.8</latitude>
        <longitude>-122.6</longitude>
        <speed>0</speed>
        <heading>200</heading>
        <rudder>0</rudder>
        <turn-radius-ft>12000</turn-radius-ft>
        <flols-pos>
          <x-offset-m>69.84</x-offset-m>
          <y-offset-m>-39.67</y-offset-m>
          <z-offset-m>21.47</z-offset-m>
        </flols-pos>
        <parking-pos>
          <name>cat-1</name>
          <heading-offset-deg>-4</heading-offset-deg>
          <x-offset-m>-3.65</x-offset-m>
          <y-offset-m>15.2715</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-2</name>
          <heading-offset-deg>-1</heading-offset-deg>
          <x-offset-m>1.6</x-offset-m>
          <y-offset-m>-4.6</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-3</name>
          <heading-offset-deg>-4</heading-offset-deg>
          <x-offset-m>93</x-offset-m>
          <y-offset-m>-20.2362</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-4</name>
          <heading-offset-deg>0</heading-offset-deg>
          <x-offset-m>110</x-offset-m>
          <y-offset-m>-29.6417</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>park-1</name>
          <heading-offset-deg>-90</heading-offset-deg>
          <x-offset-m>54</x-offset-m>
          <y-offset-m>26</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <max-lat>0.01</max-lat>
        <min-lat>0.05</min-lat>
        <max-long>0.05</max-long>
        <min-long>0.01</min-long>
      </entry>
      <entry>
        <type>carrier</type>
        <name>Eisenhower</name>
        <pennant-number>CVN-69</pennant-number>
        <TACAN-channel-ID>030Y</TACAN-channel-ID>
        <model>Models/Geometry/Nimitz/eisenhower.xml</model>
        <wire>wire-1</wire>
        <wire>wire-2</wire>
        <wire>wire-3</wire>
        <wire>wire-4</wire>
        <catapult>cat-1</catapult>
        <catapult>cat-2</catapult>
        <catapult>cat-3</catapult>
        <catapult>cat-4</catapult>
        <solid>Deck-1</solid>
        <solid>Deck-2</solid>
        <solid>Deck-3</solid>
        <solid>Deck-4</solid>
        <solid>Deck-5</solid>
        <solid>Deck-6</solid>
        <solid>Deck-9</solid>
        <solid>Deck-10</solid>
        <solid>Deck-11</solid>
        <solid>Deck-12</solid>
        <solid>Round-down</solid>
        <solid>JBD-1</solid>
        <solid>JBD-2</solid>
        <solid>JBD-3</solid>
        <solid>JBD-4</solid>
        <solid>Elevator-1-Deck</solid>
        <solid>Elevator-2-Deck</solid>
        <solid>Elevator-3-Deck</solid>
        <solid>Elevator-4-Deck</solid>
        <solid>Door-Fairing-2</solid>
        <solid>Door-Fairing-3</solid>
        <solid>Hangar</solid>
        <latitude>42.9</latitude>
        <longitude>5.96</longitude>
        <speed>0</speed>
        <heading>200</heading>
        <rudder>0</rudder>
        <turn-radius-ft>12000</turn-radius-ft>
        <flols-pos>
          <x-offset-m>69.84</x-offset-m>
          <y-offset-m>-39.67</y-offset-m>
          <z-offset-m>21.47</z-offset-m>
        </flols-pos>
        <parking-pos>
          <name>cat-1</name>
          <heading-offset-deg>-4</heading-offset-deg>
          <x-offset-m>-3.65</x-offset-m>
          <y-offset-m>15.2715</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-2</name>
          <heading-offset-deg>-1</heading-offset-deg>
          <x-offset-m>1.6</x-offset-m>
          <y-offset-m>-4.6</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-3</name>
          <heading-offset-deg>-4</heading-offset-deg>
          <x-offset-m>93</x-offset-m>
          <y-offset-m>-20.2362</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>cat-4</name>
          <heading-offset-deg>0</heading-offset-deg>
          <x-offset-m>110</x-offset-m>
          <y-offset-m>-29.6417</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <parking-pos>
          <name>park-1</name>
          <heading-offset-deg>-90</heading-offset-deg>
          <x-offset-m>54</x-offset-m>
          <y-offset-m>26</y-offset-m>
          <z-offset-m>20</z-offset-m>
        </parking-pos>
        <max-lat>0.01</max-lat>
        <min-lat>0.05</min-lat>
        <max-long>0.05</max-long>
        <min-long>0.01</min-long>
      </entry>
    </scenario>
  </PropertyList>
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Re: aircraft CARRIER questions

Postby redneck » Mon Jul 19, 2010 2:18 am

It's actually more challenging to land on the carrier when it's not moving. This is b/c, when the carrier is moving, your speed relative to the deck is slower than when it is stationary. Now, the difference in relative speed may only be a difference of 10-20 kts, but that's enough of a difference to make your carrier landings more challenging.
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Re: aircraft CARRIER questions

Postby someguy » Mon Jul 19, 2010 3:04 pm

What Jack and redneck said. It's a trade off.

At some point in your MP carrier experience, you may want to learn how to use the FLOLS lights to stay in the glidepath. To do that, you'll need to adjust the wind direction so the carrier is heading within 5 degrees of directly into the wind, or the FLOLS won't work.

If you don't care about having a stationary carrier in MP, just check the box to turn the moving carrier into the wind.

The wiki has some rudimentary instructions on using the FLOLS. Google has more.
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Re: aircraft CARRIER questions

Postby Thorium » Wed Aug 31, 2011 2:25 pm

Guys, I MAY be going off topic, but as this post is created, even i have 2 questions-->
1) Is there anyone on FG who knows all carrier Tacan ?(especially of USS Carl Vinson)
2) Does F-14B has a TACAN locator ? (i think its called tacan meter or something :oops: )
Thanks in Advance
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Re: aircraft CARRIER questions

Postby Pat70 » Wed Aug 31, 2011 8:24 pm

Hi Thorium

Yes, the Vinson has a TACAN chanel= 029X
all carrier can have one if you re looking for them or want to change them :) then edit the corresponding carrier_demo.xml file in the AI folder.
you will find the line that include the TACAN definition for each carrier.
I am not sure and cant check as i am on the laptop right now, but F14b should (pretty sure it has) have a TACAN "meter" :)
once the frequency is selected you will find the iformation on one of your instrument.
for more details have a look here in the wiki
http://wiki.flightgear.org/TACAN
and here for the F14b :)
http://wiki.flightgear.org/Grumman_F-14_Tomcat

PS: The range of the TACAN is limited to 50 nm if i remember well, thats a bit short but anyway very useful
Good luck good reading and good flight
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Re: aircraft CARRIER questions

Postby Thorium » Thu Sep 01, 2011 1:22 am

Thanks Pat70.....
Actually helped me a lot,
But i could not find that Tacan meter of the F-14 :(
I think, a pic of F-14 where Tacan is highlighted can help me :)
IF possible, can you post a pic of F-14 with Tacan meter ?
Thanks in Advance,
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Re: aircraft CARRIER questions

Postby Thorsten » Thu Sep 01, 2011 7:27 am

But i could not find that Tacan meter of the F-14


That'd be because it's hiding in the most obvious spot available - it's on the large center MFD right before your eyes. It shares that space with radar, 'h' is used to switch between different functions.
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Re: aircraft CARRIER questions

Postby Pat70 » Thu Sep 01, 2011 8:46 am

Hi ,
Well thorsten was faster than me, probably because it took me so long on the laptop to fix all and be abble to fly the F14 (i nevr fly it more than 5 minutes i guess !!)
anyway here are few snapshots to help you :)

Image
That first one show you the panel on right side of your pilot seat, use CTRL-c to see clickable spot.put the last row (POWER one) of switches onto ON (3 switches) then on the row above you have a last one on right, put it on OR/DE. then clicking "h" will change your display screen.

On second one. This show you the TACAN control panel. you can also select frequency in the Radio menu but its fun in cockpit too. here its on 029X, same as above, clicking willchange frequency (again use CTRL c to see hot spots). Beware, put the selector (large button on right) onto T/R position = the middle one. then look at your dispaly screen (cf next pic)
Image

Third one: the display screen:
Image
if you dont see it like that, press h until you get the good display !
then look upper left corner: RNG= Range to the carrier ! (beware last digit is decimal thus 0100= 010,0 so 10 nm)
here i dont select it thats why its zero also above North and South look at the logo a cross on S and tringle on N, once the carrier is selected and in TACAN range it will change to show you the direction to follow :)

and here how it looks above a carrier
Image
you can see on screen that i am not right online, a bit on left, the triangle is on right side of my heading mark. RNG=0010= 1nm
well i hope its enough :) there is some others features displayed like bridge orientation and few others that i cant remember but a bit of training will give you all you need and want to know (also with a bit of google :) )
to train, i will suggest to place the Nimitz on right side (east) of KSFO (i.e or any other airport !) in the bay and the vinson in the ocean (West of KSFO, close to KHAF).thus playing with TACAN chanel you should be abble to fly from one to an other easily. Of course KSFO is busy but train in nonMP is easy, else locate yourself close to hawai or anywhere you like.
Cheers
Good flight
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Re: aircraft CARRIER questions

Postby Thorium » Thu Sep 01, 2011 12:50 pm

Thanks Thorsten and Pat ! really helped me, now i can fly from 1 carrier to another by F-14, and I can perform A-A refueling also ! :D
Cheers,
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