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JSBSim: An Open Source Flight Dynamics Model in C++

This paper gives an overview of JSBSim, an open source, multi-platform, flight dynamics model (FDM) framework written in the C++ programming language. JSBSim is designed to support simulation modeling of arbitrary aerospace craft without the need for specific compiled and linked program code. Instead, it relies on a relatively simple model specification written in an extensible markup language (XML) format. Also presented are some key (perhaps unique) features employed in the framework. Aspects of developing an open source project are identified. Notable uses of JSBSim are listed.