Business Insider: Musk says SpaceX is building a Raptor rocket engine every 48 hours By Business Insider. Published May 31, 2021 at 12:15 pm Visitors at Playalinda Beach look on as a SpaceX Falcon Heavy rocket launches from Pad 39B at the Kennedy Space Center in Florida, on April 11, 2019. Photo by AFP SpaceX CEO Elon Musk on May 29 said his company had the capability to produce a Raptor rocket engine every 48 hours. Read more here.