Starship flight test 11

Mission type	Flight test
Operator	SpaceX
Spacecraft properties
Spacecraft	Ship 38
Spacecraft type	Starship (Block 2)
Manufacturer	SpaceX
Start of mission
Launch date	October 13, 2025 23:23 UTC (6:23 pm CDT)
Rocket	Super Heavy (Block 2,B15-2)
Launch site	Starbase,Pad-1
End of mission
Landing date	Super Heavy: October 13, 2025, 23:29:36 UTC Ship: October 14, 2025, 00:29:25 UTC
Landing site	Super Heavy:Gulf of Mexico Ship:Indian Ocean northwest ofWestern Australia (19°S107°E / 19°S 107°E /-19; 107)[citation needed]
Orbital parameters
Perigee altitude	Initial: −6 to 4 km (−3.7 to 2.5 mi) After relight: ≈50 km (31 mi)[1]
Apogee altitude	192 km (119 mi)[1]
Inclination	26.5°[1]
Payload
8Starlink mass simulators
Mass	~16,000 kg (35,000 lb)[2][3]
SpaceX Starship flight tests ← Flight 10 Flight 12 →

Starship flight test 11 was the eleventhflight test of aSpaceX Starship launch vehicle, usingBooster 15 andShip 38.^[4] It was the last flight of aBlock 2 Starship vehicle, and flew a similar profile to the previous two flights.^[5] According toEric Berger, Flight 11 would include additional tests of theRaptor engines.^[6] SpaceX stated that the ship would have some tile experiments, including removing tiles that lack an ablative backup section. The booster, with 24 flight-proven engines, tested configurations planned to be used by Block 3 boosters upon landing before being expended.^[7]

B15 was rolled back to Mega Bay 1 on March 8 for refurbishment,^[8] after having flown onflight 8.^[9] It was then rolled to Pad 1 on September 5, and stacked onto the Orbital Launch Mount (OLM) on September 6. B15 then performed a 33 engine, 9 second duration static fire on September 7.^[10] Booster 15 then rolled back to Mega Bay 1 on September 8.^[11] B15 was rolled back to Pad 1 on October 8 and was lifted onto the OLM.^[12]

S38 was rolled to the Massey's test site for cryogenic testing on July 27.^[13] On July 30, S38 conducted three separate cryogenic proof tests,^[14] followed by a return to the production site on August 1.^[14] Engine Installation began on August 14 with two Vacuum Raptors entering Mega Bay 2.^[15] S38 rolled out to the OLP-1 at the Starbase Launch Site on September 17, S38 was then lifted onto the Launch Mount for static fire testing.^[16] The first attempt at a static fire was aborted as the vehicle began propellant load on September 18.^[17] It re-attempted a static fire, but it was aborted for unknown reasons during propellant loading.^[18] Ship 38 then conducted a 6 engine, 8 second duration static fire on September 22.^[19] On October 11, Ship 38 was integrated with its payload and lifted atop Booster 15.^[20]

The mission profile for Flight Test 11 was largely consistent with that of the preceding test. The spacecraft executed a controlled splashdown in the Indian Ocean, while the booster conducted landing-burn experiments over the Gulf of Mexico. The mission also included the deployment of eight Starlink mass simulators and an in-flight engine relight test.^[7]

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