Project completed for ENGR 151 at George Fox University. The requirement for this project was to build an oscillating pneumatic engine to compete in one of five categories, maximum speed, maximum torque, air efficiency, cost efficiency, or maximum coast. I chose to compete in the maximum speed category. This project was completed with my teammate, Micah Nakasaki. We completed the project having previously known nothing about air engines. Our engine scored 1230 rpm, which was around average for the maximum speed category.