N1 Block B

Subtopics

• N1 1962 - B LOx/Kerosene propellant rocket stage. Includes 3500 kg Stage 2-Stage 3 interstage. Compared to total fuelled mass excludes 1,000 kg in propellants lost to boil-off prior to stage ignition. Values as in draft project as defended on 2-16 July 1962.
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  N-11 Block A LOx/Kerosene propellant rocket stage. Derived from N1 Block B, with large number of engines and expansion ratio adjusted for sea level operation. Includes 3500 kg Stage 2-Stage 3 interstage.
• N1 1964 - B LOx/Kerosene propellant rocket stage. Second stage of the N1 superbooster. As per draft project for N1-L3, 1964. Specific impulse estimate down one second from 1962 draft project. Thrust said to be increased 2% but not reflected in figures given.
• N1 Block V-II LOx/LH2 propellant rocket stage. N1 improvement study, 1965. LOx/LH2 replacement for Block B second stage.
• N1F 1965 - B LOx/Kerosene propellant rocket stage. As per N1 improvement study, 1965. Engine thrust increased from 150 t each to 200 t and stretched propellant tanks.
• N1M 1965 - B LOx/Kerosene propellant rocket stage. As per N1 improvement study, 1965. Further stretch of Block B and thrust increased again to 280 metric tons per engine.
• N1U 1965 - B LOx/Kerosene propellant rocket stage. As per N1 improvement study, 1965. Primarily improved reliability and produceability compared to first model.
• N1F Block B LOx/Kerosene propellant rocket stage. Includes 3,500 kg for Stage 2-3 interstage.