“Block E (rocket)”的意思、由来-开放百科全书

词条

Block E (rocket)

释义

References

Block E


Description
Role	Propulsion Unit
Engines	RD-858 and RD-859
Height	1720 mm
Diameter	2380 mm
Empty Mass	525 kg
Fueled Mass	2,950 kg

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. Block E was designed to soft land LK on the surface of the Moon after orbital velocity was cancelled by Block D and later to launch LK to the Moon orbit for the rendezvous with Soyuz 7K-LOK.^[1]^[2]

Block E used RD-858, which has one nozzle and is deeply throttleable (from 2050 kg to 858 kg of thrust),^[3] as the primary engine. The backup engine was RD-859, which has two nozzles. 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.

References

1. ^{{cite web |url=http://www.russianspaceweb.com/lk.html |title=LK spacecraft and Block E |publisher=Russianspaceweb.com |date= |accessdate=2013-12-15 |deadurl=yes |archiveurl=https://web.archive.org/web/20131230033358/http://www.russianspaceweb.com/lk.html |archivedate=2013-12-30 |df= }}
2. ^{{cite web|url=http://www.yuzhnoye.com/media/video/technique/Liquid-propellant-propulsion-systems.html |title=Liquid propellant propulsion systems, Yuzhnoe Design Bureau |publisher=yuzhnoe.com |date= |accessdate=2014-07-10}}
3. ^{{cite web |url=http://www.astronautix.com/engines/rd858.htm |title=RD-858 |publisher=Astronautix.com |date= |accessdate=2016-03-18 |deadurl=yes |archiveurl=https://web.archive.org/web/20160326002726/http://astronautix.com/engines/rd858.htm |archivedate=2016-03-26 |df= }}

3 : Manned space program of the Soviet Union|Soviet lunar program|Rocket stages

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