1972-F07
The final N-1 test flight was 7L, launched from Baikonur on 1972 Nov 23. It carried an L-3S LOK orbital craft, together with a mockup of the LK lander. After an almost-complete first stage burn, the oxygen pump on engine no. 4 exploded; fire spread through all engines and the vehicle exploded. The LOK was pulled free by the SAS. Stage 2 was meant to separate and ignite at 1:53.
| L-3S | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1972 Nov 23 | 0611:55 | Launch by N-1 (7L) | KB |
| 0613:30 | T+1:35 Central six engines shut down per plan | ||
| 0619:41? | Engine 4 explosion | ||
| 0613:42 | T+1:47 Destroyed alt. 40 km T+107s | ||
| 0616:37 | T+4:42 End of tx from Blok B | ||
| 0619? | Debris impact 180 km downrange | ||
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