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Soyuz Kontakt
Part of Soyuz
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 manoeuvring 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
Russian manned spacecraft. Cancelled 1974. Modification of the Soyuz 7K-OK spacecraft to test in earth orbit the Kontakt rendezvous and docking system.

AKA: 11F615. Status: Cancelled 1974. Thrust: 4.09 kN (919 lbf). Gross mass: 6,560 kg (14,460 lb). Unfuelled mass: 6,060 kg (13,360 lb). Specific impulse: 282 s. Height: 7.95 m (26.08 ft). Span: 9.80 m (32.10 ft).

Kontakt was developed for the lunar orbit rendezvous of the 7K-OK manned lunar orbiter and LK lunar lander. It utilized 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 rendezvous 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.

Crew Size: 3. Orbital Storage: 35 days. Habitable Volume: 9.00 m3. Spacecraft delta v: 390 m/s (1,270 ft/sec). Electric System: 0.50 average kW.



Family: Manned spacecraft. Country: Russia. Engines: KTDU-35. Launch Vehicles: R-7. Propellants: Nitric acid/Hydrazine. Agency: Korolev bureau. Bibliography: 344, 376.
Photo Gallery

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 manoeuvring engines, or just the passive docking mechanism 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


Kontakt Docking MechKontakt Docking Mech
Kontact docking grappler. The three arms at the bottom faced outward from the docking assembly. MAI, March 1994
Credit: © Dietrich Haeseler



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