SpaceX’s Raptor engine and Blue Origin’s BE-4 engine are two key innovations in rocket propulsion, each with its unique design and performance characteristics. While the Raptor engine leverages ...

The 35-engine SpaceX Starship booster using version 3 raptor engines is coming sooon. Booster 18 could be the first Version 3 booster. 35 Raptor 3 engines (280 tons of thrust each) will be 9800 tons ...

Robert Zubrin talks about reducing the mass of SpaceX Starship by a factor of 5 for a Starboat mini-Starship. The linear dimensions would scale by the cube root of 1/5 ≈ 0.58. This gives a diameter of ...

SpaceX uses 3D printers and a process of relentless refinement to streamline its Raptor engines. In the Raptor 3, plumbing and wiring that had been on the outside were fused into the motor’s metal ...