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 ...

The rocket engine has always been a compromise—striking a delicate balance between power and efficiency. However, SpaceX's Raptor engine is changing the game with its radical design and meticulous ...

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 ...

SpaceX has ramped up its engine testing efforts at the McGregor test facility this past week, conducting a total of 24 Raptor engine firings and achieving multiple milestones in engine performance and ...