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A comment on Rocket Launch in New Zealand Brings Quick, Cheap Space Access. Parent comment

Re:Rocket Launch in New Zealand Brings Quick, Cheap Space Ac... by wolf550e on Sunday November 11, 2018 @12:49PM (#18427548)
They disconnect and dump the battery mid-flight on ascent to not carry the mass of the empty battery, which might be counted as half a stage in rocket terminology (like https://en.wikipedia.org/wiki/SM-65_Atlas)

See: https://www.youtube.com/watch?v=sPwMuUxSrcA&t=1625

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