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10

The experience of landing a booster for SpaceX is actually more relevant directly to the Super Heavy booster, which has yet to fly. (BN1 was built as a pathfinder, then disassembled. BN2 is under construction as of Apr 2021). Falcon 9 lands its first stage, which is analogous to Super Heavy. However, it does not land its upper stage, which is more similar ...


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There are a few reasons: The most obvious but easier to overcome is that the Starship is new. They haven't had the time to perfect everything. For example, the Raptor engines use two separate turbopumps, one for liquid oxygen and one for methane. This improves efficiency but it makes the engines far more complex. The Raptor is the first engine of its kind to ...


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