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| Mars 1 / 2MV-4 - Mars 2MV-4. Other spacecraft in the 2MV series were similar. Credit: NASA. 22,262 bytes. 329 x 229 pixels. |
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Manufacturer's Designation: 2MV-2. Class: Planetary. Type: Venus. Nation: USSR. Manufacturer: Korolev.
SpecificationTotal Mass: 6,490 kg.
Mars 2MV-2 Chronology
04 February 1961
Sputnik 7 Program: Venera. Launch Site: Baikonur . Launch Vehicle: Molniya 8K78. FAILURE: At T+531 sec, the fourth vernier chamber of Stage 3's 8D715K engine exploded because the LOX cut-off valve had not closed as scheduled and LOX flowed into the hot chamber. Mass: 6,483 kg. Perigee: 212 km. Apogee: 318 km. Inclination: 64.9 deg. The escape stage entered parking orbit but the main engine cut off just 0.8 s after ignition due to cavitation in the oxidiser pump and pump failure.. The payload attached together with escape stage remained in Earth orbit.
10 September 1962
Sputnik 21 Program: Venera. Launch Site: Baikonur . Launch Vehicle: Molniya 8K78. FAILURE: At T+531 sec, the fourth vernier chamber of Stage 3's 8D715K engine exploded because the LOX cut-off valve had not closed as scheduled and LOX flowed into the hot chamber. Mass: 6,500 kg. Perigee: 179 km. Apogee: 218 km. Inclination: 64.9 deg. The escape stage entered parking orbit but the main engine cut off just 0.8 s after ignition due to cavitation in the oxidiser pump and pump failure.
Bibliography:- 2 - McDowell, Jonathan, The United Nations Registry of Space Objects, Harvard University, 1997. HTML when accessed: http://hea-www.harvard.edu/QEDT/jcm/space/un/un.html
- 6 - JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. HTML when accessed: http://msl.jpl.nasa.gov/home.html
- 64 - Varfolomyev, Timothy, Spaceflight, "Soviet Rocketry that Conquered Space - Part 5", 1998, Volume 40, page 85.
- 65 - Novosti Kosmonavtiki, "Otmenenniy Start "Molniya-M"", 1997, Issue 1, page 29.
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Last update 12 March 2001.
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