4 ms·

. . . except the N1 wasn't testable. Among other things, engine valves used pyrotechnics to operate, so they couldn't static fire the engines.

• cubefox 3y ago
  They did test the N1 rocket prototypes by launching them. Static fires are a much less expensive way of testing, but they only partially replace test launches.
  • Aloha 3y ago
    And I'm not sure that that static tests would have caught the failures plaguing the N1.