SpaceX’s Fourth Starship Test Delayed To June – IFT-4 Booster Shipped To Pad

After SpaceX shipped its IFT-4 booster to the launch pad and static fired a new Starship for the first time earlier this week, Elon Musk has confirmed the fourth Starship test flight's delay on X. After the previous Starship test took place in March, SpaceX was quick to give a launch date, which would have meant a rapid drop in the turnaround time for the world's largest rocket since IFT-2 flew after a considerable delay. IFT-2 was followed by the third test four months later, and a May launch would have cut this time in half.

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Musk's comments came after he shared an image of two upper stage Starships at SpaceX's Texas facilities. While the next Starship test flight might take place in three months instead of two, for the first time since it started the integrated test flight campaign, SpaceX has now started to focus on simultaneously maintaining multiple rockets.

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The two ships could support SpaceX's fourth and fifth Starship tests, and allow it to gather more data about its rockets. The success of the Falcon 9 program is partly due to the hundreds of landings that have enabled SpaceX to gather copious amounts of data, and despite rapid progress with building test prototypes, SpaceX still has several key objectives it must meet in 2024 with the rocket.

The Starship Super Heavy uses 33 rocket engines for liftoff, and during landing, the rocket has to orient itself properly or risk crashing. While the rocket exploded before stage separation during the first test flight, in IFT-2, the booster managed to jettison away from the second stage but exploded after engine reignition.

The third flight added progress in March. After stage separation, not only did the second stage Starship coast sufficiently to allow for some fireworks during atmospheric reentry, but the first stage almost looked ready to