\*auxiliary propulsion unit :) It isn't the same thing as the APU in a plane (wh... | Hacker News

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		dotnet00 on July 10, 2024 \| parent \| context \| favorite \| on: Europe's new heavy-lift rocket, Ariane 6, made its... *auxiliary propulsion unit :) It isn't the same thing as the APU in a plane (where I think most people are getting the 'auxiliary power unit'). The APU here is a secondary thruster which ensures proper pressure (and likely ullage) for the main engine to start.

mrtksn on July 10, 2024 [–]

Haha right, I paused for a second as I couldn't remember the exact word and went with power. Thanks for the correction and the explanation.

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