The complete L3 lunar expedition complex with the 7K-LOK and LK for the Moon flyby and landing was prepared for a fifth launch, using a modified N1 rocket in August 1974. If this mission and the next had been successful, it would have led to the decision to launch up to five Soviet crewed N1-L3 expeditions in 1976–1980. To gain technical and scientific interest in the program, the modified multi-launched N1F-L3M missions were planned to have significantly more time on the Moon's surface than Apollo.