This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com

astronautix.com Mars 2MV-2

Mars 1 / 2MV-4
Mars 1 / 2MV-4 - Mars 2MV-4. Other spacecraft in the 2MV series were similar.

Credit: NASA. 22,262 bytes. 329 x 229 pixels.



Manufacturer's Designation: 2MV-2. Class: Planetary. Type: Venus. Nation: USSR. Manufacturer: Korolev.
Specification

Total 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:



Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .