Q15890723: Difference between revisions

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Q15890723
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{{Page|Blok DM-03|Classes|variant of the Blok D upper stage|Blok DM-3, Blok DM3, DM-3}}
{{Page|Blok DM-03|Classes|variant of the Blok D upper stage|Blok DM-3; Blok DM3; DM-3}}

Latest revision as of 12:44, 2 September 2025




The Blok DM-03, is a Russian upper stage used as an optional fourth stage on the Proton-M and Angara A5 heavy-lift rockets. Three have been launched, the first in December 2010; the first two launches failed before fourth stage ignition, the first as a result of a problem with the Blok DM's fuel load. Some versions are also known as Orion.