This page no longer updated from 31 October 2001. Latest version can be found at N1F Sr

N1F - Sr
N1F - Sr - N1F with Sr Lox/LH2 upper stage

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Family: N. Country: Russia. Status: Cancelled 1974.

The final more modest version of the N1M replaced the fourth and fifth stages of the N1 with the single liquid oxygen/liquid hydrogen Block Sr stage. Development of the Sr stage was from May 1971 until cancellation of the N1 project in May 1974.


Liftoff Thrust: 3,976,000 kgf. Total Mass: 2,677,900 kg. Core Diameter: 10.0 m. Total Length: 94.0 m.

N1F Sr Chronology

- 1971 May -
1974 May 2 -


Blok SRBlok SR

Credit: © Mark Wade. 1,903 bytes. 142 x 414 pixels.

N1 VariantsN1 Variants - N1 Launch Vehicle Family

Credit: © Mark Wade. 8,667 bytes. 641 x 227 pixels.

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Last update 12 March 2001.
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© Mark Wade, 2001 .