Here is a fun project I did for a client that needed a way to safely crash a boat for a test. I used an inexpensive model RC transmitter and receiver, two robotics motor controllers, a linear actuator, a DC gear motor, distance sensor, sprockets and chain, and come custom brackets to make a 23 foot fishing boat remote controlled! Since the boat was going to be crashed, I didn’t spend too much effort making things super nice, but it all worked well enough for their test. Here is a quick video of the components and how they work: