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30+ second hotfire provides data in thermal steady state, allowing us to further optimize our new first stage engine combustion chamber.

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Astra

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61,062 просмотров • 10 месяцев назад •via X (Twitter)

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Hotfire at our test facility in preparation for testing the new combustion chamber for the next-generation Astra first stage engine that will power Rocket 4.
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Like seriously, making a completely unique second stage engine wasn't enough for them. They also had to make a full flow staged combustion cycle engine for the first stage.
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