About: Blok E

Blok E (or Block E) is the propulsion unit of Soviet lunar module LK, developed in 1960s by Yuzhnoye Design Bureau as a part of the manned lunar landing program. Blok E was designed to soft land the LK on the surface of the Moon after orbital velocity was cancelled by Blok D. Later the same stage would fire for the second time for the liftoff and ascent from the Moon to rendezvous with the orbiting Soyuz 7K-LOK. Blok E used (or 11D411), which has one nozzle and is deeply throttleable (from 2050 kg to 858 kg of thrust), as the primary engine. The backup engine was (or 11D412), which has two nozzles.

Property	Value
dbo:abstract	Blok E (or Block E) is the propulsion unit of Soviet lunar module LK, developed in 1960s by Yuzhnoye Design Bureau as a part of the manned lunar landing program. Blok E was designed to soft land the LK on the surface of the Moon after orbital velocity was cancelled by Blok D. Later the same stage would fire for the second time for the liftoff and ascent from the Moon to rendezvous with the orbiting Soyuz 7K-LOK. Blok E used (or 11D411), which has one nozzle and is deeply throttleable (from 2050 kg to 858 kg of thrust), as the primary engine. The backup engine was (or 11D412), which has two nozzles. Together, the two engines formed the propulsion system designated . Both engines burned a mix of unsymmetrical dimethyl hydrazine and nitrogen tetroxide. The hypergolic propellant components guaranteed their easy storage during a lunar expedition lasting at least 11 or 12 days. The engines were equipped with clam-shell doors to prevent damaging it while staying on the surface of the Moon. There were four additional vernier engines placed between main and backup engine nozzles. (en)
dbo:wikiPageID	62288430 (xsd:integer)
dbo:wikiPageLength	4270 (xsd:integer)
dbo:wikiPageRevisionID	984792855 (xsd:integer)
dbp:country	dbr:Soviet_Union
dbp:manufacturer	dbr:Yuzhnoye_Design_Office
dbp:name	Blok E (en)
dbp:rockets	dbr:LK_(spacecraft)
dbp:status	Retired (en)
dbp:wikiPageUsesTemplate	dbt:Convert dbt:Reflist dbt:Infobox_rocket_stage dbt:N1-L3 dbt:Infobox_rocket/stage
dct:subject	dbc:Soviet_inventions dbc:Rocket_stages
rdfs:comment	Blok E (or Block E) is the propulsion unit of Soviet lunar module LK, developed in 1960s by Yuzhnoye Design Bureau as a part of the manned lunar landing program. Blok E was designed to soft land the LK on the surface of the Moon after orbital velocity was cancelled by Blok D. Later the same stage would fire for the second time for the liftoff and ascent from the Moon to rendezvous with the orbiting Soyuz 7K-LOK. Blok E used (or 11D411), which has one nozzle and is deeply throttleable (from 2050 kg to 858 kg of thrust), as the primary engine. The backup engine was (or 11D412), which has two nozzles. (en)
rdfs:label	Blok E (en)
prov:wasDerivedFrom	wikipedia-en:Blok_E?oldid=984792855&ns=0
foaf:isPrimaryTopicOf	wikipedia-en:Blok_E
is dbo:wikiPageDisambiguates of	dbr:Block_E
is dbo:wikiPageRedirects of	dbr:Block_E_(rocket)
is foaf:primaryTopic of	wikipedia-en:Blok_E