Developing Advanced Flight Dynamics Models

[HiFlyer 9,360]

As Outerra moves forward, Outerra users/modders are beginning to see a need to codify the rapidly accumulating knowledge of how to create content for the program, so that newcomers will have an easier path in not having to all "Start from scratch" repeatedly recreating the same wheel. Hopefully this will help in creating more uniformity in coding, which is, as to be expected at this early date, a bit chaotic.

 

This thread, started by Uriah509, begins in the Outerra forum here: http://forum.outerra.com/index.php?action=unread

 

 

Hey everyone!  

I am starting this thread for the discussion and development of advanced Flight Dynamics Models (FDMs), and for documenting examples, lessons learned, best practices and tools in the Outerra Wiki. 
Learn How to get write access to contribute to the wiki.

I would like to preface this thread by asking everyone to please keep this discussion to a technical nature so we can focus on the pertinent development of flight models. Thank you! 

That said, we welcome and urge anyone with experience in JavaScript, XML, JSBSim, aviation in general, engineering and aerospace, as well as private, commercial and military pilots, to contribute your knowledge to this discussion. Participation will shape the final outcome and quality of the flight models, and would be greatly appreciated!

Best regards,
Uriah George



Important Information and Resources: (PM me if you want to add an item to the list!)

JSBSim:

• JSBSim Flight Dynamics Model - Class List
• JSBSim Documentation
• JSBSim interface (OT Wiki)
• JSBSim (Flight Gear Wiki)

JavaScript and XML:

• w3schools.com - JavaScript
• w3schools.com - XML

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[SpaceNova 1]

This is a really great initiative! I'm not making content for Outerra myself, but I'm sure more gifted individuals than me will benefit from this Wiki! Great work! :smile:  

[HiFlyer 9,360]

This is a really great initiative! I'm not making content for Outerra myself, but I'm sure more gifted individuals than me will benefit from this Wiki! Great work! :smile:  

 

Outerra is moving into a new phase, and its hoped that creative people not totally swamped by other commitments might be interested in wandering afield a bit, to help out a young community finding its direction.

 

Outerra is still not certain where to go first. Arcade? Full-on nose to the grindstone simulation?

 

This is the time to help lay the foundations of the future.

 

http://forum.outerra.com/index.php?board=41.0

[HiFlyer 9,360]

Work continues: Please see more at: http://forum.outerra.com/index.php?topic=3240.0;topicseen

 

From Uriah George.

 

[WIP] Aircraft Development Toolkit

« on: March 15, 2015, 05:48:31 am »

 

I am working on an Aircraft Development Toolkit for Outerra that will help people build accurate flight models, taking measurements directly from the 3d model and real world data. Some features, like force vector visualization for flight testing, will use a bone (e.g. BONE_CG or BONE_AC) and different colored 3D objects, such as Vector Arrows or Center Marks, that will be a attached to these bones. In the JS script I will set the bones to the position/rotation of the corresponding center or force vector, and use an autopilot to hold level flight at a specific altitude for standardized flight testing. There will be a variable to hide/show the visualization objects, as well as this.log_inf() these properties and output a CSV file. As part of the Aircraft Development Toolkit I'll include a users guide, 3ds Max file including the visualization objects, bones and helpers, the script code to animate each visualization feature, and FDM examples of a number of different flight modeling methods that can be used for different purposes/types of aircraft . 

[Acetone 34]

It's quiet here!

 

Some screens of Uriah's toolkit : forces vector visualisation

 

 

Note that it's displaying multiple force vectors for each wing/blade. This is a good picture of what Bomber is doing with JBSIM to get the most accurate possible FDM. He is currently working on improving the Cessna 172 FDM.