Duane Boldt Rocket Certification Launch The "RoboRocketryOne" rocket was actually made from a Semroc SLS Brighton kit. It's a pretty cool kit that has changeable motor mounts. It can flight on one 29mm high powered motor as in this flight for my High Power Rocketry (HPR) Level 1 certification and you can also fly it on a three 24mm motor cluster configuration or four 18mm motor cluster configuration. Great fun rocket to build and fly.