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- Blok_D abstract "Blok D (Russian: Блок Д meaning Block D) is an upper stage used on Soviet and later Russian expendable launch systems, including the N1, Proton-K and Zenit.The stage (and its derivatives) has been included in more than 320 launched rockets as of 2015. By 2002 its modification Blok DM had a 97% success rate in 218 flights since 1974, and 43 successful missions in 1997-2002.The stage was developed in 1960s as the fifth stage ('Д' is the fifth letter in the Cyrillic alphabet) for the Soviet Moonshot N1 rocket. The stage first flew in March 1967 while testing Zond of the moonshot program system. During manned lunar flight Blok D would be used for mid-course corrections on the flight to the Moon, then to place the lunar orbiter and lander into a lunar orbit, and decelerate moon-lander out onto its landing trajectory.Blok D was also included as fourth stage of Proton rocket and as such flew on unmanned Soviet missions to Moon, Mars and Venus. It was used in the Proton-K configuration of the rocket and is still in use in the newer Proton-M variant (along with the Briz-M).Blok DM also flies as the third stage for Zenit-3SL rocket, which is used by the Sea Launch project to launch geostationary satellites. In 2002 the failure of a Blok DM3—used in the attempted launch of Astra 1K—caused considerable concern.The stage uses liquid oxygen (LOX) and kerosene as propellants, and has one single-chamber RD-58 main engine. The LOX tank has a spherical shape; the kerosene tank is toroidal, inclined to 15 degrees for better fuel extraction, with the engine mounted in the center of torus. Tanks include the first pump stage for the engine; the main pump is mounted on the engine.Blok D weighs 3.5 tons during liftoff, but some parts are jettisoned and the dry mass in space is 2.5 tons. It has 5.70 meters length and generates 83.300 kN thrust for 600 seconds burn time. Blok D was modified as Blok DM in 1974, with 11D-58S engine. The unit cost is $4 million.Since 1990, all variations of this stage have been built in the Krasnoyarsk Machine-Building Plant.".
- Blok_D thumbnail Block-D.jpg?width=300.
- Blok_D wikiPageExternalLink n1_d.html.
- Blok_D wikiPageExternalLink 14glonass.
- Blok_D wikiPageExternalLink blockd.html.
- Blok_D wikiPageExternalLink sea-launch-stands-behind-the-reliability-of-the-block-dm-77061007.html.
- Blok_D wikiPageID "3842731".
- Blok_D wikiPageLength "10338".
- Blok_D wikiPageOutDegree "79".
- Blok_D wikiPageRevisionID "681156654".
- Blok_D wikiPageWikiLink Angara_(rocket_family).
- Blok_D wikiPageWikiLink Arkas.
- Blok_D wikiPageWikiLink Astra_1K.
- Blok_D wikiPageWikiLink Blok_DM-03.
- Blok_D wikiPageWikiLink Briz-M.
- Blok_D wikiPageWikiLink Buran_(spacecraft).
- Blok_D wikiPageWikiLink Category:Rocket_engines_using_kerosene_propellant.
- Blok_D wikiPageWikiLink Category:Rocket_stages.
- Blok_D wikiPageWikiLink Category:Soviet_inventions.
- Blok_D wikiPageWikiLink De_(Cyrillic).
- Blok_D wikiPageWikiLink Energia.
- Blok_D wikiPageWikiLink Expendable_launch_system.
- Blok_D wikiPageWikiLink GLONASS.
- Blok_D wikiPageWikiLink INTEGRAL.
- Blok_D wikiPageWikiLink Inmarsat-3_F2.
- Blok_D wikiPageWikiLink Iridium_satellite_constellation.
- Blok_D wikiPageWikiLink JSC_Krasnoyarsk_Machine-Building_Plant.
- Blok_D wikiPageWikiLink Kerosene.
- Blok_D wikiPageWikiLink LK_(spacecraft).
- Blok_D wikiPageWikiLink Land_Launch.
- Blok_D wikiPageWikiLink Liquid_oxygen.
- Blok_D wikiPageWikiLink Low_Earth_orbit.
- Blok_D wikiPageWikiLink Mars.
- Blok_D wikiPageWikiLink Mars_96.
- Blok_D wikiPageWikiLink Multistage_rocket.
- Blok_D wikiPageWikiLink N1_(rocket).
- Blok_D wikiPageWikiLink Phobos_program.
- Blok_D wikiPageWikiLink Proton-K.
- Blok_D wikiPageWikiLink Proton-M.
- Blok_D wikiPageWikiLink Proton_(rocket_family).
- Blok_D wikiPageWikiLink RD-58.
- Blok_D wikiPageWikiLink RD-58S.
- Blok_D wikiPageWikiLink RP-1.
- Blok_D wikiPageWikiLink Russia.
- Blok_D wikiPageWikiLink S.P._Korolev_Rocket_and_Space_Corporation_Energia.
- Blok_D wikiPageWikiLink Sea_Launch.
- Blok_D wikiPageWikiLink Soviet_Union.
- Blok_D wikiPageWikiLink Soviet_manned_lunar_programs.
- Blok_D wikiPageWikiLink Syntin.
- Blok_D wikiPageWikiLink Telstar_5.
- Blok_D wikiPageWikiLink Venus.
- Blok_D wikiPageWikiLink Vostochny_Cosmodrome.
- Blok_D wikiPageWikiLink Zenit-3SL.
- Blok_D wikiPageWikiLink Zenit-3SLB.
- Blok_D wikiPageWikiLink Zenit_(rocket_family).
- Blok_D wikiPageWikiLink Zond_program.
- Blok_D wikiPageWikiLinkText "Block D".
- Blok_D wikiPageWikiLinkText "Block DM".
- Blok_D wikiPageWikiLinkText "Block DM-2".
- Blok_D wikiPageWikiLinkText "Block-DM".
- Blok_D wikiPageWikiLinkText "Block-DM-2".
- Blok_D wikiPageWikiLinkText "Block-DM-2M".
- Blok_D wikiPageWikiLinkText "Block-DM-5".
- Blok_D wikiPageWikiLinkText "Blok D".
- Blok_D wikiPageWikiLinkText "Blok D-1".
- Blok_D wikiPageWikiLinkText "Blok DM".
- Blok_D wikiPageWikiLinkText "Blok DM-2".
- Blok_D wikiPageWikiLinkText "Blok DM-2M".
- Blok_D wikiPageWikiLinkText "Blok DM-SL".
- Blok_D wikiPageWikiLinkText "Blok DM-SLB".
- Blok_D wikiPageWikiLinkText "Blok DM3".
- Blok_D wikiPageWikiLinkText "Blok-DM".
- Blok_D wikiPageWikiLinkText "Blok-DM-2".
- Blok_D wikiPageWikiLinkText "Blok-DM2".
- Blok_D wikiPageWikiLinkText "D".
- Blok_D wikiPageWikiLinkText "DM-03".
- Blok_D wikiPageWikiLinkText "DM-2".
- Blok_D wikiPageWikiLinkText "DM-2M".
- Blok_D wikiPageWikiLinkText "DM1".
- Blok_D wikiPageWikiLinkText "DM2".
- Blok_D wikiPageWikiLinkText "DM3".
- Blok_D caption "Blok DM".
- Blok_D comparable Briz-M.
- Blok_D country Soviet_Union.
- Blok_D derivatives Blok_DM-03.
- Blok_D derivedFrom "Blok D".
- Blok_D engines RD-58.
- Blok_D family "Blok D".
- Blok_D first "1974-03-26".
- Blok_D fuel Liquid_oxygen.
- Blok_D fuel RP-1.
- Blok_D last "1988-05-06".
- Blok_D launches "66".
- Blok_D name "Blok DM".
- Blok_D rockets "N-1, Proton and Zenit-3".
- Blok_D status "Retired".
- Blok_D time "630.0".
- Blok_D wikiPageUsesTemplate Template:As_of.
- Blok_D wikiPageUsesTemplate Template:Convert.
- Blok_D wikiPageUsesTemplate Template:Infobox_rocket_stage.