SpaceX details Starship and Super Heavy V3, a comprehensive redesign covering Raptor 3 engines, avionics, launch pad, and in-space capabilities ahead of Flight 12 from Pad 2.
Key Takeaways
Raptor 3 sea-level thrust up to 250 tf from 230 tf; engine mass down to 1,525 kg from 1,630 kg; ~1 ton vehicle-level savings per engine.
Super Heavy drops from 4 to 3 grid fins (50% larger each); hot stage integrated; fuel transfer tube redesigned to Falcon 9 first-stage scale for simultaneous 33-engine startup.
Avionics: ~60 custom units delivering ~9 MW peak power, 50 camera views, 480 Mbps redundant Starlink connectivity, and new RF propellant sensors for microgravity measurement.
Starship V3 adds ship-to-ship docking drogues, propellant transfer connections, 100% vacuum-jacketed header feed, and cryo recirculation for long-duration missions.
Pad 2 launch mount gets bidirectional flame diverter, electromechanical chopstick actuators, and redesigned hold-downs; targeting high flight-rate full reuse.
Hacker News Comment Review
Technical commenters treat Raptor 3’s sensor/controller internalization and shroud elimination as a genuine simplification milestone, though debate whether modern fabrication hides complexity rather than removing it.
The xAI acquisition section and orbital-data-center claims drew heavy skepticism; the “2-3 years cheapest AI compute will be in space” line was widely mocked as detached from near-term physics and economics.
Some commenters defended the long-run premise (all mass/energy is ultimately off-Earth) while criticizing the timeline aggressiveness as a pattern SpaceX uses to force iteration.
Notable Comments
@NitpickLawyer: V3 engines are the first production-iteration Raptor, with auxiliary systems internalized – frames this as a maturation milestone, not just an upgrade.
@hparadiz: Notes hex thermal tiles now cover tail fin assemblies in multiple sizes, flagging structural reinforcement as an open question.
