SpaceX has implemented a broad set of design updates to its Starship system following the April test flight. Ars Technica reports Elon Musk’s remarks as the basis for many of these changes.
A core improvement centers on the sequencing algorithm that governs stage separation and engine operation. Historically rockets like the Soviet Soyuz cut first stage engines seconds before stage separation. Under SpaceX’s revised plan, most of the Super Heavy first stage engines will shut down simultaneously with firing of the Starship upper stage engines. The goal is to boost payload capability, but it will require adding protective measures on top of the first stage before it can be reused. In addition, vent paths will be introduced on the Super Heavy to vent gases generated by the second stage engines.
The Raptor engine manifolds have also been redesigned. These manifolds feed methane rich gas into the combustion chamber to mix with the oxidizer. The prior configuration suffered from leakage risks where hot gas could escape through connection holes between the manifold and the engine. In response, SpaceX is replacing the hydraulic thrust vector control system with an electric version. Extra armor will be placed between engines to shield them from potential blast damage caused by neighboring units.
Two multi ton steel gas deflector plates will be affixed to the launch pad to reduce damage from powerful engine plumes. In total, there are more than one thousand smaller changes implemented across the vehicle.
Details on Starship design and the evolution of its systems are discussed in depth by industry observers and cited sources such as Ars Technica, which summarize Musk’s insights and the technical rationale behind the updates. These updates reflect ongoing efforts to improve reliability, reusability, and performance across the Starship program. [Attribution: Ars Technica]
Summary notes compiled from public statements and technical analyses highlight a clear emphasis on engine sequencing, thermal protection, and structural reinforcement as essential elements guiding Starship’s iterative development. The combination of updated controls, enhanced protection layers, and new ventilation paths represents SpaceX’s approach to addressing reliability concerns while pursuing higher payload capacities and repeated reuse in a demanding launch environment. [Attribution: Industry analyses]
As SpaceX continues to test and refine the design, observers anticipate additional adjustments that may include refinements to engine gimbal systems, further improvements to heat management, and more robust protective hardware around critical engine clusters. The ongoing updates aim to optimize performance for a range of missions, from satellite deployments to crewed and cargo transport, reinforcing SpaceX’s roadmap for a fully reusable, high-angle-of-attack launch system. [Attribution: Space industry reviews]