“Thrust reversers deployed on the CFM56 engine of an Airbus A321”. Image and caption from Wikipedia. This is a continuation of Part 1 of the Spaceship Racer series. If you haven’t checked that out and want to read about project setup, thrust, turning, and drag forces, feel free to read that first. I’ll be going into a bit of a discussion of air and thrust-based braking to kick things off, then get to the implementation.