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.

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.
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

From Wikipedia, the free encyclopedia

Kosmos 434
Soviet lunar lander drawing.svg
LK Lander
Mission typeSpacecraft test
OperatorSoviet Union
COSPAR ID1971-069A
SATCAT no.5407
Spacecraft properties
SpacecraftT2K No.3
Launch mass7,000 kilograms (15,000 lb)[1]
Start of mission
Launch date12 August 1971, 09:30 (1971-08-12UTC09:30Z) UTC[2]
Launch siteBaikonur 31/6
End of mission
Decay date23 August 1981
Orbital parameters
Reference systemGeocentric
RegimeMedium Earth
Semi-major axis12,353.00 kilometres (7,675.80 mi)
Perigee altitude187 kilometres (116 mi)
Apogee altitude11,777 kilometres (7,318 mi)
Inclination51.5 degrees
Period227.94 minutes
Epoch11 September 1971[3]

Kosmos 434 (Russian: Космос 434; meaning Cosmos 434) was the final uncrewed test flight of the Soviet LK Lander. It performed the longest burn of the four uncrewed LK Lander tests, validating the backup rocket engine of the LK's Blok E propulsion system. It finished in a 186 km by 11,804 km orbit. This test qualified the lander as flightworthy.

The LK was the only element of the Soviet human lunar programs that reached this status. In 1980-81 there were fears that it might carry nuclear fuel. When it reentered over Australia on August 22, 1981 the Soviet Foreign Ministry in Australia admitted that Kosmos 434 was an “experiment unit of a lunar cabin,” or lunar lander.

See also


  1. ^ "Cosmos 434". National Space Science Data Center. Retrieved 15 December 2013.
  2. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 15 December 2013.
  3. ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 15 December 2013.

External links

This page was last edited on 28 January 2021, at 22:33
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.