SpaceX Completes Full-Duration Static Fires of Both Starship V3 Vehicles, Clearing the Path to Flight 12
Ship 39 and Booster 19 have each completed full-duration Raptor 3 engine tests at Starbase, with Flight 12 now targeting May 2026.
Overview
SpaceX has completed full-duration static fire tests of both Starship V3 vehicles at its Starbase facility in Boca Chica, Texas, clearing the final major ground milestones before the program’s twelfth integrated flight test. Ship 39, the V3 upper stage, fired all six Raptor 3 engines for approximately 60 seconds on April 14, according to Space.com. Booster 19, the Super Heavy first stage carrying a full complement of 33 Raptor 3 engines, followed with its own full-duration static fire shortly after, as reported by NASASpaceFlight.
The successful tests mark a turning point for the V3 program, which had faced delays after an earlier 10-engine test of Booster 19 on March 16 ended prematurely due to a ground systems issue. Flight 12, the maiden voyage of the Block 3 configuration, is now expected in early to mid-May 2026.
This follows earlier reporting by The Machine Herald on Flight 12 preparations when the launch was initially targeting mid-March.
What We Know
Ship 39 upper stage test
Ship 39 completed a full-duration six-engine static fire at SpaceX’s Massey test site on April 14. According to Space.com, SpaceX confirmed it was the “full-duration static fire for the first time on Starship V3.” The test came after a previous attempt was aborted due to a ground support equipment issue, as noted by NASASpaceFlight. Ship 39 features upgraded propellant tanks, enhanced flaps, and a new heat shield tile configuration compared to its V2 predecessors.
Booster 19 Super Heavy test
Booster 19 completed a full-duration static fire with all 33 Raptor 3 engines at Orbital Launch Pad 2, according to NASASpaceFlight. The booster had previously completed only a 10-engine partial test on March 16 at the same pad before ground systems issues cut the test short, as Space.com reported at the time. Booster 19 was subsequently returned to SpaceX’s production facility, where the remaining 23 Raptor 3 engines were installed to complete the full 33-engine complement before rolling back out for the final test campaign.
Each Raptor 3 engine produces approximately 280 metric tons of thrust at sea level, a 22 percent increase over the Raptor 2, while weighing 75 kilograms less per unit. With all 33 engines firing, Booster 19 generates roughly 9,240 metric tons of combined thrust, exceeding any rocket ever tested.
V3 specifications
Starship V3 stands approximately 408 feet (124.4 meters) tall, roughly four feet taller than its V2 predecessor, according to Space.com. The vehicle’s payload capacity to low Earth orbit in a fully reusable configuration exceeds 100 metric tons, compared to approximately 35 metric tons for V2. SpaceX has characterized the Block 3 design as “really going to be our production rocket,” signaling that the company views this generation as a mature, repeatable design rather than a development prototype.
What We Don’t Know
SpaceX has not confirmed a specific launch date for Flight 12, though multiple reports place it in early to mid-May 2026. The mission profile for Flight 12, including whether SpaceX will attempt a booster catch at the launch tower or a controlled ocean splashdown, has not been publicly detailed. It also remains unclear whether any additional ground tests will be required before launch clearance is granted.
The timeline for integrating Starship V3 into NASA’s Artemis program, which requires in-orbit refueling demonstrations involving roughly ten tanker flights to establish propellant depots, has not been updated. Starship is designated as the crewed lunar lander for Artemis III.
Analysis
The back-to-back successful static fires represent the most significant ground testing milestone for the Starship program since integrated testing began in 2023. Every previous Starship iteration has followed a successful full-duration static fire with a flight attempt, making the pattern a reliable indicator that Flight 12 is imminent.
The V3 configuration’s nearly threefold increase in payload capacity over V2 is central to SpaceX’s commercial and government ambitions. The 100-plus metric ton capacity in fully reusable mode would make Starship the most capable launch vehicle in history by a wide margin, and the design’s emphasis on full reusability and in-orbit refueling is essential for the lunar cargo missions that underpin NASA’s Artemis architecture.
The path from the March 16 partial test to the April full-duration fires also illustrates SpaceX’s iterative development cadence: the company identified ground systems issues, returned Booster 19 for engine installation, and completed the full test campaign within a month.