Editing Soyuz 7K-OK

The ''Soyuz'' 7K-OK is the first generation of soviet Soyuz spacecraft, flying from November 11, 1966 to June 1, 1970. It had a crew of 2-3 astronauts and was produced in two versions, "Active" and "Passive", describing its role during docking and the configuration of the early docking port. It was a major evolution from the early ''Vostok'' spacecraft and plagued with early problems.

==Description==
The Soyuz spacecraft consists of three modules, of which only the descent module CA returns to Earth. Every module is specialized for its tasks.
===Orbital Module БО===
Extends habitable space, contains galley and toilet, acts as airlock, contains the ingress hatch for entering the spacecraft on the launch pad. Contains the Игла/''Igla'' (Needle) docking guidance system. The orbital module is easily adapted for new docking adapters, docking guidance systems or scientific payloads. 

===Descent Module СА===
Crew, crew seats, front hatch, [[Sirius-7K IDS|''Sirius''-7K IDS]], ''Visor'' (''Визр'') periscope,  hydrogen peroxide attitude control, heat shield, landing rockets.

===Propulsion Module ПО===
Contains all navigation sensors, solar arrays, pressurized electronics compartment, hydrogen peroxide for the ДО and ДПО thrusters, Dinitrogentetroxide and Unsymmetrical Dimethylhydrazine for main(СКД) and backup engine (ДКД).

==Subsystems==
===Attitude control===
ДО (DO) and ДПО (DPO) thruster systems, using hydrogen peroxide. 
===45K sun tracker===
===TV cameras===
КР-75, КР-71/1, КР-71/2, КР-91. КР-74 TV signal multiplexer.
===СКД main engine===
===ДКД back-up engine===

==Missions==
{|
!Active<br>Spacecraft
!Active<br>launch date
!Active<br>launch crew
!Passive<br>Spacecraft
!Passive<br>launch date
!Passive<br>launch crew
!Date of docking
!Active<br>landing date
!Active<br>landing crew
!Passive<br>landing date
!Passive<br>landing crew
!Comments
|-
|Cosmos 133
|November 28, 1966
|Unmanned
|Canceled
|November 29, 1966
|Unmanned
|Canceled
|November 30, 1966
|Unmanned
|Canceled
|Canceled
|Attitude control system failed, passive mission canceled, destroyed by 23 kg self-destruct charge over China. Also known as "Spacecraft No.2"
|-
|N/A
|N/A
|N/A
|Spacecraft no.1
|December 14, 1966 16:00
|Unmanned
|N/A
|N/A
|N/A
|N/A
|N/A
|Lift-off failed, shortly afterwards SAS rocket activated, destroying the rocket in a fire and killing Major Korostylev.
|-
|Cosmos 140
|February 7, 1967
|Unmanned
|NA
|NA
|NA
|NA
|February 9, 1967
|Unmanned
|NA
|NA
|45K Sun tracker failed, depleting DPO propellants and batteries, landed in water and sank, because of a heat shield burn-through
|-
|Soyuz 1
|April 23, 1967 03:35 MT
|Komarov
|Soyuz 2
|Canceled
|Bykovsky, Yeliseyev, Khrunov
|Canceled
|April 24, 1967 06:24 MT
|Komarov
|Canceled
|Canceled
|Attitude control system failed again, parachutes failed during landing, killing Komarov
|-
|Cosmos 186
|October 27, 1967
|Unmanned
|Cosmos 188
|October 30, 1967
|Unmanned
|October 30, 1967
|October 31, 1967
|Unmanned
|November 2, 1967
|Unmanned
|Achieved only soft-docking, again problems with 45K sensor, passive spacecraft self-destructed before reentry after passing an "Ion pocket" over Brazil
|-
|Cosmos 212
|April 14, 1968
|Unmanned
|Cosmos 213
|April 15, 1968
|Unmanned
|April 15, 1968
|April 19, 1968
|Unmanned
|April 20, 1968
|Unmanned
|Achieved hard-docking, first guided reentry by Cosmos 212, both spacecraft badly damaged by the parachute dragging them over ground after landing
|}

==References==
* "Soyuz - A Universal Spacecraft"; Hall, Shayler; Springer Praxis; ISBN 1-85233-657-9
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730023009_1973023009.pdf Docking Technology]
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19770006201_1977006201.pdf Liquid Rocket Engines]; Bychkov, Nazarov, Prishchepa. 
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750015574_1975015574.pdf The Soyuz - Ready to Fly]; Filipchenko. 
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750004932_1975004932.pdf Mutual Aid In Space]; Fotkin.
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750015550_1975015550.pdf The Apollo And Soyuz Spacecraft]; Yudin.
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750015549_1975015549.pdf The Apollo-Soyuz Test Flight]; Leonov.
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19750013233_1975013233.pdf Space - A Road Without End]; Nikolayev
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19740025204_1974025204.pdf Such Will Be Our Ship]; Zhadanov, Yuzhov
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19740024185_1974024185.pdf Soyuz - Workhorse Of Space]; Yelizavetin
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720008128_1972008128.pdf Soviet Soyuz Spacecraft]; Academy Of Sciences, USSR
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19740008421_1974008421.pdf From Spacecraft To Spacecraft]; 
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730015111_1973015111.pdf Rendezvous In Orbit]; Anuchin
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710026712_1971026712.pdf Flight Of Soyuz 10]
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19850069208_1985069208.pdf Soyuz And Apollo]; Buchuev (WARNING: 820 MB PDF)
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19730022260_1973022260.pdf The Second Orbital Flight]; Nikolayev
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710070052_1971070052.pdf The Soyuz 6, Soyuz 7 and Soyuz 8 Mission], Mandrovsky
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900066076_1990066076.pdf A Brief Description Of Docking Device of "Soyuz"-Type Spacecraft (With Internal Passageway)]
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900066074_1990066074.pdf Description Of The Conceptual Arrangement For The Rendezvous And Docking of Soyuz Spacecraft]
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900066147_1990066147.pdf Reference Data On The Parameters Of The Atmosphere In The Living Compartments Of Soyuz Type Spacecraft]
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900066087_1990066087.pdf Radiotelephone Communications Between Spacecraft Of The Soyuz Type]