Aerodynamics

Aerodyn.org
by A. Filippone

Entry created by Andreas Jung.

General collection of all kinds of resources related to aerodynamics.

Derivation and Definition of a Linear Aircraft Model
by NASA (E. L. Duke, R. F. Antoniewicz, K. D. Krambeer)

Entry created by Andreas Jung.

Formal reference of a linear flight model. The appendix contains all derivates of the flight model you can possibly think of. Various formulas for flight instrument output are also given. [IMO] Very complete reference of a linear flight model, but you should have already a good understanding of aerodynamics (and math) prior reading this lecture. For example, you shouldn't be afraid of words such as "tensors". However, if you are familiar with aerodynamics such as the one from the NPSNET paper, many parts will look familiar.

NPSNET: Flight Simulation Dynamic Modeling Using Quaternions
by J. M. Cooke, M. J. Zyda, D. R. Pratt, R. B. McGhee

Entry created by Andreas Jung.

The paper presents a linear flight model from the point-of-view of the year 1994. The paper also discusses various orientation methods. [IMO] *THE* starting point if you seriously plan to implement aerodynamics on your own. It reduces a lot of math to formulas, which can be directly implemented into a computer program without further research. With this in mind, one has what it takes to challange the more complicated flight models.

JSBSim
by Various Developers

Entry created by Andreas Jung.

From the website: "JSBSim is an open source flight dynamics model (FDM) that compiles and runs under many operating systems, including Microsoft Windows, Apple Macintosh, Linux, IRIX, Cygwin (Unix on Windows), etc.".

LaRCsim
by Jackson, E. Bruce

Entry created by Andreas Jung.

NASA open source flight model from the year 1995. The source code ships with a hardcoded small general aviation plane model. Newsgroup research suggest the existence of a F-16 model, which is not available to the public. The link only features a paper about the flightmodel. For some reason, the source code can be found on the FlightGear-FTP (i.e. ftp://ftp.de.flightgear.org/pub/fgfs/Source/ ). [IMO] The usability of this flight model in today's flight simulators is not quite clear, because it is quite dated. Nevertheless, free NASA stuff is always worth a look. There is surely something to learn from it.