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Air to Air Refuelling

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Air to Air Refuelling

Postby sdefvisual » Wed Jan 27, 2021 7:49 am

I want to animate air to air refuelling(Mother Tank) drogue to slowly mate with aircraft probe in flightgear 2017 version. suggest me ideas
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Re: Air to Air Refuelling

Postby Johan G » Wed Jan 27, 2021 3:43 pm

It has unfortunately been practically impossible to achieve. Mostly due to network lag and ping jitter.

One way around it could possibly be to animate the pod and part of the hose as parts of the tanker and the drogue and an overlapping part of the hose as parts of the receiver.

This might be a good starting point: http://wiki.flightgear.org/Aerial_refue ... ed_content
Low-level flying — It's all fun and games till someone looses an engine. (Paraphrased from a YouTube video)
Improving the Dassault Mirage F1 (Wiki, Forum, GitLab. Work in slow progress)
Some YouTube videos
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Re: Air to Air Refuelling

Postby sdefvisual » Fri Jan 29, 2021 5:18 am

This is regarding air to air refuelling, how to animate a slow release of hose from the pod along with the drogue.
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Re: Air to Air Refuelling

Postby Johan G » Fri Jan 29, 2021 9:25 am

Look at some of the references and related content, and in particular the forum topics. ;)

Things similar to this have been attempted before.
Low-level flying — It's all fun and games till someone looses an engine. (Paraphrased from a YouTube video)
Improving the Dassault Mirage F1 (Wiki, Forum, GitLab. Work in slow progress)
Some YouTube videos
Johan G
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Re: Air to Air Refuelling

Postby jano » Tue Feb 23, 2021 1:08 pm

There's a tanker (a bit hidden ) who do this, as you can see here:





the tip is to use the real time mode for lag compensation, something wich came in FG one year ago, and that allow lag free flight, if your clocks are reasonably in synch,
some help on the wiki page

the plane taking fuel from the tanker need to specify the refuel point position in the models/plane.xml file, eg:

Code: Select all
<multiplay>
   <refuel>
     <offset-x-m type="double">-4.84</offset-x-m>
     <offset-y-m type="double">1.04</offset-y-m>
     <offset-z-m type="double">1.35</offset-z-m>
     <type type="string">probe</type>
   </refuel>
 </multiplay>
 



and the tanker from onox is here, rename it to onox-tanker to use it ...
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Re: Air to Air Refuelling

Postby Johan G » Wed Feb 24, 2021 7:05 pm

jano wrote in Tue Feb 23, 2021 1:08 pm:There's a tanker (a bit hidden ) who do this, as you can see here:

I did some tests with onox half a decade ago that did not work out too well (except for when both where stationary on the ground). It is really nice to see that this now is possible. :D

Edit: Tip when cloning the Git repo (making the change of directory name redundant):
Code: Select all
$ git clone --verbose https://github.com/onox/test-i965-triangle.git onox-tanker

I think this will allow to just "git pull" without extra operations. ("--verbose" is not necessary, but is nice to have.)
Low-level flying — It's all fun and games till someone looses an engine. (Paraphrased from a YouTube video)
Improving the Dassault Mirage F1 (Wiki, Forum, GitLab. Work in slow progress)
Some YouTube videos
Johan G
Moderator
 
Posts: 6629
Joined: Fri Aug 06, 2010 6:33 pm
Location: Sweden
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IRC name: Johan_G
Version: 2020.3.4
OS: Windows 10, 64 bit


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