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N1 1L – full scale dynamic test model, each stage was individually dynamically tested; the full N1 stack was only tested at 1/4 scale.[26]
N1 2L (1M1) – Facilities Systems Logistic Test and Training Vehicle (FSLT & TV); two first stages painted gray, third stage gray-white and L3 white.[27]
N1 3L – first launch attempt, engine fire, exploded at 12 km.
N1 4L – Block A LOX tank developed cracks; never launched, parts from Block A used for other launchers; rest of airframe structure scrapped.[28]
N1 5L – partially painted gray; first night launch; launch failure destroyed pad 110 East.
N1 6L – launched from the second pad 110 West, deficient roll control, destroyed after 51s.
N1 7L – all white, last launch attempt; engine cutoff at 40 kilometres (22 nmi) caused propellant line hammering, rupturing the fuel system.
N1 8L and 9L – flight ready N1Fs with improved NK-33 engines in Block A, scrapped when the program was canceled.
N1 10L – uncompleted, scrapped along with 8L and 9L.