Building the FASTEST DIY submarine

Build your own CPS 5 with our online course: In this video we upgrade our CPS 5 underwater drone (DIY submarine, or ROV if you like) to be faster than Michael Phelps and ultimately battle our biggest challenger - a turtle. If you feel like this video was has improved you as a person, please SHARE THE VIDEO. Our mission is to make building underwater drones as cool as the flying ones. You can help us by donating: 0:00 - Why Michael Phelps is slow 1:08 - Plan of action 2:33 - Redesign the drone 4:30 - Find good propellers 6:33 - Find good ESCs (fun) 8:21 - Assemble everything 9:27 - Test no 1 10:40 - Why is it so slow? 12:06 - Build a test rig 12:41 - Find what’s going on 15:40 - Fix it & rebuild the drone 16:06 - Test no 2 & jumping 18:36 - Was it faster than a turtle? _________________________________________________________________ Music: ♪ Sunset (Prod. b