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Energia 4S and 2L in MIK RN.

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1673722794590246.jpg polyus assy compThumbnailsTest article OK-TVI next to the TVI-2 chamber at NIIKhimMash in 1990.polyus assy compThumbnailsTest article OK-TVI next to the TVI-2 chamber at NIIKhimMash in 1990.

Energia 4S (top) and 2L (bottom) cores in MIK RN in 1999. Note that 4S has mock-up RD-0120 nozzles while 2L (a flight article no less) has flight engines.