Benchmark 2.0b10 - Model the performance of an engine, a propeller, and an airplane.. (Free): Benchmark makes it possible to model the performance of an engine, a propeller, and an airplane and then fly the plane in any flight conditions to assess performance and efficiency. It handles all of the standard calculations used in performance flight testing and analysis and, at the end, generates performance charts (including CAFE 400). A fully-modeled F.8L Falco airplane is available for use with the beta.