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A comment on Astronauts escape malfunctioning Soyuz rocket. Parent comment

Re:Astronauts escape malfunctioning Soyuz rocket by LeifCarrotson on Thursday October 11, 2018 @11:15AM (#18194161)
> eight high-pressure hydrazine engines (which must work in perfect sync)

There's eight for redundancy, it's a fault-tolerant system.

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Re:Astronauts escape malfunctioning Soyuz rocket by rbanffy on Thursday October 11, 2018 @11:54AM (#18194546)
There are 8 independent engines, IIRC, mounted two by two. I think they are controlled in pairs, one on each side of the craft so as to avoid an engine on one side not knowing its counterpart on the other side failed and forcing the capsule to spin instead of fly away from the faulty booster.
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