Starship Raptor Engine Failures Shadow First Orbital Flight

Orbit achieved, with asterisks

SpaceX's Starship reached orbit for the first time on September 28, 2026, on the program's 14th test flight. It is the largest and most powerful launch vehicle ever built 5. The upper stage, Ship 41, released 26 Starlink V3 satellites about 25 minutes after lifting off from Starbase, Texas 2. It then came back down and splashed down safely in the Pacific Ocean north of Hawaii 4.

By almost any measure, it was the milestone the program has chased for years. But the headline result hides a recurring problem. Engine reliability was the central drama of the day, and it remains the most important open question heading into the next flight.

Three Raptors down, one mission completed

On the way up, one of Starship's six Raptor engines shut down early. The remaining five burned longer to make up for the lost thrust 1. NASASpaceFlight identifies the failed engine as a Raptor Vacuum unit, one of the engines optimized for operation in space 4. Ars Technica describes it more generally as one of the six engines 1.

The Super Heavy booster had trouble too. Ars reports that two of its 33 Raptors appeared to fail, one during launch and one during the return maneuvers 1. NASASpaceFlight says only that Booster 21 lost "a few engines" but still completed its whole flight profile 4. That profile ended with a soft splashdown in the Gulf. SpaceX then deliberately triggered the Flight Termination System, describing it as a test of the safety system that also broke the booster into fragments 4.

The accounts largely agree. The vehicle tolerated multiple engine losses and still did its job. Engine-out tolerance is a design feature, and this flight showed it working. Still, an orbital rocket that routinely depends on that margin is not yet a rocket you can schedule like an airliner.

Why the ship's engines mattered most

The in-flight decisions showed how much depended on the ship's propulsion. SpaceX's Kate Huot said engineers were "extremely conservative" in planning the flight 1. The worst case was a 100-ton vehicle stranded in orbit and unable to deorbit under control, which would raise public-safety concerns 1. The team committed to orbit only after confirming that the core systems needed to get back down were sound. That included clearing the three center engines 1.

That context explains why the booster failures, though described as less of an immediate worry for this flight, still matter for the future 1. Full reuse and booster catches require engines that relight reliably, not just enough redundancy to absorb losses. The launch itself was pushed back by 31 minutes to 7:48:59 a.m. CDT, which SpaceX attributed to getting better lighting at the Pacific splashdown zones 4.

The payload proof point

The Starlink deployment was the clearest commercial win. About a week after launch, SpaceX posted the first image of the deployment sequence, taken by a camera aboard one of the satellites 2. The company claims the V3 generation will deliver more than 100 times the bandwidth of the existing Starlink network, which numbers roughly 11,000 satellites, and cites a total capacity figure of 26 Tbps 2. These are SpaceX's own projections and have not been independently verified. Space.com frames the flight as the start of a constellation that could eventually reach 100,000 spacecraft 5.

Flight 15 and a timeline in flux

Attention has already shifted to the next flight, and the reported dates do not line up. NASASpaceFlight suggested Flight 15 could come as soon as October and mentioned a possible return to catching vehicles 4. A more recent public tracking entry lists a no-earlier-than date of November 8, 2026 3. That flight would use Booster 22 and Ship 42, the fourth pair of Block 3 vehicles, launching from Orbital Launch Pad 2 3. Booster 22 began cryogenic proof testing in September, while the Flight 14 campaign was still underway 3. The entry also cites reports that Flight 15 may begin testing parts of the propellant-transfer demonstration, including docking and hatch mechanisms 3.

The gap between October and November likely reflects ordinary schedule slippage after the post-flight review. It does not appear to be a real disagreement between the two sources.

The reading

Flight 14 was a real breakthrough. Starship reached orbit, delivered a working payload and returned safely 45. However, three apparent Raptor failures across the two stages show that engine reliability remains the program's limiting factor 1. Propellant transfer, booster catches and high-cadence Starlink deployment all depend on engines that work every time, not on margins that absorb failures. Until a flight completes with all engines healthy, the orbital success is best read as proof that the design is resilient, not yet proof that the propulsion is mature.