SpaceX has officially confirmed 19 May 2026 as the target launch date for the debut of Starship Version 3, the most extensively redesigned iteration of the world’s most powerful rocket, with liftoff scheduled for 6:30 p.m. EDT from a brand-new launch pad at Starbase in Texas.
Flight 12 is the designation for this mission, and just about everything about it is new. A fresh version of the Starship upper stage, a new configuration of the Super Heavy booster, a redesigned engine, and a brand-new launch pad are all making their first appearances simultaneously.
That is either a testament to SpaceX’s confidence in its engineering, or a sign that the company is willing to stack a lot of firsts on a single flight, as has become its signature approach.
What makes V3 different
The centrepiece of Version 3 is the Raptor 3 engine, and the numbers behind it are not subtle. Thrust output for sea-level variants has been pushed from 230 tonnes-force to 250 tonnes-force, while vacuum variants now produce 275 tonnes-force, up from 258.
At the same time, SpaceX has stripped weight from the engine itself, bringing it down to 1,525 kg from 1,630 kg, which pushes the thrust-to-weight ratio above 180. That figure places it among the most efficient large rocket engines ever built.
The redesign achieves this partly by eliminating external plumbing runs and internalising secondary flow paths, and partly through expanded use of additive manufacturing, which allows complex internal geometries that would be impossible to machine conventionally.
The result is an engine that is both simpler on the outside and significantly more capable throughout, as reported by Spaceflight Now.
The upgraded propulsion translates directly to payload. In its fully reusable configuration, Starship V3 is targeting more than 100 tonnes to low Earth orbit. In an expendable configuration, that ceiling climbs toward 200 tonnes, numbers that, if validated in flight, will make it the highest-capacity launch vehicle in history by a significant margin.
What Flight 12 will and will not attempt
SpaceX has deliberately stepped back from the tower-catch ambitions that made Flight 11 a landmark moment. Neither the booster nor the upper stage will attempt a mechanical catch on this flight.
Booster 19 is targeting a controlled splashdown in the Gulf of Mexico approximately seven minutes after liftoff, while Ship 39 will aim for the Indian Ocean about an hour into the mission.
The reasoning is straightforward. With a new vehicle architecture, a new pad, and a new engine variant all flying together for the first time, SpaceX wants to validate the baseline before layering on recovery complexity.
The mission will also deploy 22 Starlink simulators during the flight, adding a payload demonstration element to what is primarily an engineering qualification flight.
The SpaceX Starship V3 launch window on 19 May opens at 18:30 EDT and runs for 90 minutes.
