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Soyuz Kontakt A
Soyuz Kontakt A
Provisional drawing of Soyuz Kontakt A (Active) derivative of Soyuz for earth orbit tests of Kontakt lunar orbit docking system. It is uncertain if the Soyuz included the forward-mounted maneuvering engines, or just the active docking mechanism of the LOK lunar orbiter. Certainly the LOK's cupola forward viewing port would have to be included in the orbital module.

Credit: © Mark Wade. 17,398 bytes. 600 x 188 pixels.


Article Number: 11F615. Manufacturer's Designation: 7K-OK. Class: Manned. Type: Spacecraft. Nation: USSR. Manufacturer: Korolev.

Modification of the Soyuz 7K-OK spacecraft to test in earth orbit the Kontakt rendezvous and docking system. Kontakt was developed for the lunar orbit rendezvous of the 7K-OK manned lunar orbiter and LK lunar lander. It utilised a hexagonal grid on the passive craft and a three-pronged grappler on the active spacecraft to allow a soft docking between the two spacecraft. The Kontakt system used manual optical methods for rendezous and docking rather than the heavier automatic Igla radar system mounted on the 7K-OK. No hard docking was possible and crew transfer was by extravehicular activity. The 7K-OK adaptation would have involved launch of two Soyuz by 11A511 boosters, with rendezvous and crew transfer in earth orbit. Crews were trained for these tests but due to delays and final cancellation of the N1-L3 lunar orbit rendezvous mission, the spacecraft never flew.


Specification

Craft.Crew Size: 3. Design Life: 10 days. Orbital Storage: 35.00 days. Total Length: 8.0 m. Maximum Diameter: 2.7 m. Total Habitable Volume: 9.00 m3. Total Mass: 6,560 kg. Total Propellants: 500 kg. Primary Engine Thrust: 417 kgf. Main Engine Propellants: Nitric Acid/Hydrazine. Main Engine Isp: 282 sec. Total spacecraft delta v: 390 m/s. Electric system: 0.50 total average kW. Electrical System: Solar panel span: 9.80 m, area: 14.00 sq. m.



Soyuz Kontakt PSoyuz Kontakt P - Provisional drawing of Soyuz Kontakt P (Passive) derivative of Soyuz for earth orbit tests of Kontakt lunar orbit docking system. It is uncertain if the Soyuz included the forward-mounted maneuvering engines, or just the passive docking mechansim of the LK lunar lander. Certainly the LK's forward viewing port and docking optical device would have to be included in the orbital module. It is not known if the downward-looking viewport and extensive scallop of the LK cabin was a feature.

Credit: © Mark Wade. 20,603 bytes. 600 x 210 pixels.


Soyuz Kontakt Chronology


01 December 1969 Soyuz (Kontakt) 10 Program: Lunar L3. Flight Crew: Grechko, Kuklin.

Would have simulated the passive LK lunar lander in an earth-orbit test of the Kontakt docking system.


01 March 1970 Soyuz (Kontakt) 11 Program: Lunar L3. Flight Crew: Fartushny, Shatalov.

The active spacecraft in the second planned test of the Kontakt lunar rendezvous/docking system.


01 January 1972 Soyuz Kontakt 1 Program: Lunar L3. Flight Crew: Filipchenko, Grechko.

By December 1970, there were four crews in training for two pairs of Soyuz spacecraft to be launched to test the Kontakt lunar rendezvous/docking system. The launches at that time were scheduled to occur after the missions to the Salyut 1 space station were completed. Soyuz Kontakt 1 would have been the active spacecraft of the first mission.


01 March 1972 Soyuz Kontakt 3 Program: Lunar L3. Flight Crew: Vorobyov, Yazdovsky.

Soyuz Kontakt 3 would have been the active spacecraft of the second dual launch to test the Kontakt lunar orbit rendezvous system.


31 January 1973 Soyuz Kontakt P Program: Lunar L3. Flight Crew: Lazarev, Makarov.

Final crews selected for a dual Soyuz mission in Earth orbit to test the Kontakt docking system to be used on the lunar landing LOK and LK spacecraft. The Kontakt-P Soyuz would have been the passive spacecraft, simulating the LK lunar lander.



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Last update 12 March 2001.
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