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1.5 L2 (Lunar Orbit Module): Lunar Mission Command Ship (1971-1974)
No L2 (figure 1-11) ever reached orbit. The spacecraft was meant to play the equivalent role of the U.S. manned lunar program’s Apollo CSM. An L2 is on display at the Moscow Aviation Institute. For an L2/CSM comparison, see figure 4-3. Figure 1-12 depicts the Soviet manned lunar landing profile. Figure 1-11. L2 (Lunar Orbit Module). At the front of the spacecraft (left) is the Aktiv unit of the lunar mission Kontakt docking system.
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Figure 1-12. N-1/L3 lunar mission profile. 1. N-1 rocket liftoff. 2. LRS Earth orbit insertion. 3. LRS translunar injection using Block G rocket stage. Block G separates. 4. Midcourse correction using Block D rocket stage. 5. Lunar orbital insertion using Block D rocket stage. 6. Single cosmonaut transfers from L2 to L3 by EVA. 7. L3 lunar lander and Block D rocket stage separate from L2 Lunar Orbit Module. 8. Deorbit burn and powered descent using Block D rocket stage. Expended Block D rocket stage separates from the L3 1 to 3 km above the lunar surface. L3 continues powered descent using its own main or backup rocket motor. 9. L3 touchdown on Moon. 10. Expended Block D rocket stage crashes on Moon. 11. L3 liftoff using same engines used for final descent. Legs are left on Moon. 12. L2 rendezvous and docking with L3. 13. Cosmonaut transfers from L3 to L2 by EVA. L3 discarded. 14. Trans-Earth insertion burn using L2 main engine. 15. Midcourse correction using L2 main engine. 16. Orbital module and service module discarded. 17. Descent module reentry. 18. Parachute descent and touchdown on land.