The recently finished project "Computational Steering - the virtual wind tunnel" is a team work of nine software engineering students, who worked one year to develop a software system for the simulation of wind tunnel tests in a virtual environment. A special feature of the package is the simulation steering capability, where not only an online visualization of the CFD simulation results is provided, but also the possiblity to interact with the simulation during a run in a Virtual Reality environment. To achieve this goal an intense use of special HPC and VR hardware is indispensable. The software runs on a distributed system of parallel architectures and was realized on the department's Linux CoW "Mozart", an SGI Onyx multiprocessor visualization system driving a Powerwall, and a tracking system for user input. The development process itself is based on software engineering methods while the student project imitates all phases of a commercial software production process.