Exact SNECMA Atar 9K50 afterburning turbojet variant. Dassault documents the engine in Mirage G4/G8 development and Mirage 50 service; French aviation-heritage documentation records its 1969 certification, 1973 Mirage F1 production entry, and distinct 9K50 design boundary. This packet creates propulsion identity only and asserts no family link, actor attribution, Mirage installation, sibling mutation, or lineage edge.