Completed as an honors project at Sierra College, this custom-designed V-Twin air engine was designed to convert energy stored in compressed air to rotational energy. Designed and simulated in both Solidworks and Autocad Inventor, the part drawings were produced to GD&T standards. Once simulated, the engine's aluminum components were machines using CNC and manual operations. After constructing the engine using off the shelf components, it successfully ran 120 RPM.