Super Heavy Booster 19
Super Heavy Booster 19 is an iteration of SpaceX’s Super Heavy first-stage booster, designated for use during Starship Flight Test 12. As the first stage of the Starship launch system, this booster was paired with the Starship V3 upper stage for this particular integrated flight test. The booster represents a specific configuration point within SpaceX’s ongoing iterative development and testing program for the Starship vehicle.
Development and Purpose
Booster 19 was developed as part of SpaceX’s systematic approach to testing and validating successive configurations of the Super Heavy booster. Each booster iteration incorporates design refinements and lessons learned from previous flight tests. The pairing of Booster 19 with the V3 upper stage reflects the coordinated development of both the first and second stages of the Starship system during this phase of the testing program.