To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

Zond L1S-1
Mission type
Mission duration66 second
Distance travelled30 km
Range32-35 km
Apogee30 km
Start of mission
Launch date21 February 1969, 09:18 (1969-02-21UTC09:18Z) UTC
RocketN1/No.3L
Launch siteSite 110P
 

Zond L1S-1 was a Zond capsule to be placed into orbit around the Moon by the first launch of the N1, a Soviet made super heavy-lift launch vehicle designed to land manned Soviet spacecraft on the Moon.[1][2] The Zond capsule was equipped with a dummy lander and cameras to photograph the lunar surface for possible sites of a manned landing.[3] The failure of the N1 launch vehicle caused the launch escape system to ignite, saving the Zond capsule from destruction.

Engines 12 and 24 shut down about 3 to 7 seconds after liftoff. The fault was found to be an error in the control system. The control system compensated by giving more power to the working engines. But at 25 seconds after lift off the control system throttled back the working engines, as there was too much vibration. At an altitude of about 30 km, just 66 seconds after liftoff, the engines again were set to full power. This caused an oxidizer pipe to break open. A fire started, and the engine's turbopumps exploded.

Zond L1S-2 launched on 3 July 1969 also failed. Soyuz 7K-L1E No.1 launched on 26 June 1971 failed. The last N-1 launch of Soyuz 7K-LOK No.1 failed on 23 November 1972.[4][5] [6][7] [8][9]

NASA used the Saturn V rocket for lunar missions, a super lift rocket like the N-1.

Flight number Date (UTC) Launch site Serial no. Payload Outcome Remarks
1 21 February 1969
09:18:07
Baikonur Site 110/38 3L Zond L1S-1 Failure
2 3 July 1969
20:18:32
Baikonur Site 110/38 5L Zond L1S-2 Failure Destroyed launch pad 110 East
3 26 June 1971
23:15:08
Baikonur Site 110/37 6L Soyuz 7K-L1E No.1 Failure
4 23 November 1972
06:11:55
Baikonur Site 110/37 7L Soyuz 7K-LOK No.1 Failure

See also

References

  1. ^ "Tentative IDs". nssdc.gsfc.nasa.gov. Retrieved 2019-09-24.
  2. ^ "N1 No. 3L launch". www.russianspaceweb.com. Retrieved 2019-09-24.
  3. ^ "Tentative IDs". nssdc.gsfc.nasa.gov. Retrieved 2019-09-24.
  4. ^ Raketno-kosmicheskii kompleks N1-L3, book: Гудилин В.Е., Слабкий Л.И. (Слабкий Л.И.)(Gudilin V., Slabkiy L.)"Ракетно-космические системы (История. Развитие. Перспективы)",М.,1996
  5. ^ Wade, Mark. "1969.02.21 - N1 3L launch". Encyclopedia Astronautica. Mark Wade - Encyclopedia Astronautica. Archived from the original on 5 August 2014. Retrieved 5 February 2015.
  6. ^ Harvey, Brian (2007). Soviet and Russian lunar exploration. Berlin: Springer. p. 222. ISBN 0387739769.
  7. ^ "Die russische Mondrakete N-1 (in German)".
  8. ^ Harford, James (1997). Korolev : how one man masterminded the Soviet drive to beat America to the moon. New York; Chichester: Wiley. p. 294. ISBN 9780471327219.
  9. ^ Zak, Anatoly. "N1 No. 3L launch". RussianSpaceWeb.com. Anatoly Zak. Retrieved 5 February 2015.
This page was last edited on 2 January 2021, at 03:47
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.