Starship Booster 21 Completes Full 33-Engine Static Fire Ahead of Flight 14

SpaceX fired all 33 Raptor engines on Super Heavy Booster 21 for roughly 15 seconds at Starbase's Pad 2 in South Texas on August 28, 2026, the final major ground test before the booster is cleared to stack with Ship 41 for Starship's 14th flight test (IFT-14) — the vehicle's first attempt at reaching orbital velocity. The static fire follows Ship 41's own single-engine (Aug 19) and full-duration six-engine (Aug 21) static fires at Massey's Test Site. One day later, on August 29, Booster 21 underwent a chopsticks-lift test at Pad 2's launch tower, with the 'Mechazilla' arms lifting the booster to rehearse catch-and-stack procedures ahead of integration with Ship 41. SpaceX's testing window for Booster 21 runs through September 5; with both static-fire campaigns now complete, stacking and FAA licensing are the remaining steps before a launch NET early-to-mid September.