1967 August 31 - Launch Vehicle: N1. N1 launch pad 110 east completed

1968 May 7 - Launch Vehicle: N1. N1 booster 4L erected at launch complex 110 east A September 1968 flight test was planned. However the first stage LOX tank developed hairline cracks during ground tests. 4L was removed from the pad in June 1968. The first stage was cannibalized; the upper stages were incorporated into the 1M1 mockup for further training of the launch crews.

1968 November 15 - Launch Vehicle: N1. N1 1M1 mockup erected on pad with L1S payload Spacecraft: Soyuz 7K-L1. The N1 mockup was again erected on the pad, in order to conduct tests of the L1S payload in advance of the availability of the 3L launch vehicle.

1968 December 26 - Launch Vehicle: N1. N1 launch vehicle 3L erected on launch pad The 3L vehicle, without its payload (which was on the 1M1 mockup), is erected on the pad to test engine systems.

1969 February 21 - 09:18 GMT - Launch Vehicle: N1. LV Model: N1 . N-1 11A52 3L FAILURE: First stage failure. N1 3L launch Spacecraft: Soyuz 7K-L1A. Agency: RVSN. Apogee: 30 km (18 mi). N-1 serial number 3L was the first N-1 launched. The vehicle ran into trouble immediately at lift-off. A fire developed in the tail compartment. The engine monitoring system detected the fire, but then gave an incorrect signal, shutting down all engines at 68.7 seconds into the flight. British intelligence detected the launch attempt, but the CIA's technical means for some reason missed it and they denied for years that it had ever occurred. In retrospect the launch team at Baikonur pointed to a grave mistake - at the christening of the first N1, the champagne bottle broke against the crawler-transporter rather than the hull of the rocket. After the 3L failure everyone knew there was no chance at all of beating the Americans to the moon. Additional Details: N1 3L launch(5173).