Wednesday, October 28, 2026

1967-11-22 · 59 years ago

L-1 No. 5L — launch

Date in UTC

Zond 1967B was an uncrewed Soyuz 7K-L1 test mission launched on November 22, 1967 as part of preparations for Soviet circumlunar flights. A second-stage engine failure interrupted the Proton launch. The escape system separated the capsule from the failing rocket, and the capsule was recovered. The spacecraft did not carry out the planned flight toward lunar distance.

Wikipedia: https://en.wikipedia.org/wiki/Zond_1967B. Original timeline Wikipedia link: https://en.wikipedia.org/wiki/Zond_program. Related NASA reference: https://nssdc.gsfc.nasa.gov/planetary/tent_launch.html#zond1967b.

Category
Launches and Flight Tests
Mission
L-1 No. 5L
Organization
Strategic Rocket Forces
Vehicle
Proton-K/D
Location
NIIP-5, Baykonur, Kazakstan
Country
SU
Launch outcome
failure

Context and qualifications

Launch code: OF. Source references: NK9810-25; NK9810-25. Engine nozzle failed

Sources and attribution

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