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ENGINE.ZIP    Working model of a four stroke engine.  The user must correct problems with the engine in order to make it run.
E_BFW.ZIP     Mechanical Engineering Aid. Solves beam formulas.
E_SPW.ZIP     Mechanical Engineering Application allows you to quickly size standard shaped profiles for 2D Properties: Area, Y-bar, Moment of Inertia, Section Modulus, Radius of Gyration.