Duane Boldt Rocket Certification Launch T' "RoboRocketryOne" rocket be actually made from a Semroc SLS Brighton kit. It's a pretty cool kit that has changeable motor mounts. Aye aye! Blimey! It can flight on one 29mm high powered motor as in this flight for me 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. Avast, me proud beauty! Blimey! Great fun rocket t' build and fly.