A-10 Aerodynamic Derivatives?

[sharkforce]

I need to analyze an aircraft's dynamic stability for a class (Stability & Control of aerospace vehc.), of course being the A-10C fan that I am, I want to do the A-10C. However I have not been able to find any tables of the aerodynamic derivatives for the A-10 on the internet or the schools databases. I need the derivatives to resolve the various important dynamic modes which is the bulk of the project. Any help finding them would be appreciated. :helpsmilie:

[Bucic]

I doubt such data are available for A-10 as simply they are not necessary for training nor maintenance purposes. If there is a paper on A-10 flight testing then you might get lucky *, but if there isn't, you probably won't find anything.

 

* even a paper on flight testing may miss some data necessary for your project e.g. they may not include lift(alpha) and drag(lift) chart and they may not mention the airfoil name for the particular aircraft wing.

 

If you won't get lucky you'll have to calculate/estimate the needed data by yourself. If you need just the data for the purpose of stability and controllability assessment the quickest way would be to put the a-10 3D model (simplified) to a 3D aero analysis software. Unfortunately IIRC there is no freeware software that does 3D aero analysis of an airframe. If you're a student of aviation engineering or alike your faculty should provide you with a workstation with the software installed and working and someone to assist you.

 

If you'll have to calculate everything form airfoil data to finite length wing data... Have you done it before?

Edited April 12, 2011 by Bucic

[amalahama]

If you have MATLAB and know how to use it, you can try with TORNADO

 

http://www.redhammer.se/tornado/

 

It uses Vortex Lattice, so don't expect perfect results outside lineal boundaries, but is easy to use and fits quite well for small AoA/Beta angles.

 

Bear in mind that TORNADO doesn't include fuselage aircraft efects into derivatives, though.

 

Regards!!

[rextar]

http://www.dept.aoe.vt.edu/~mason/Mason_f/A-10Spr09.pdf

 

Hope this helps!

[Napa]

Contact Fairchild Republic :D :P