Russian manned spacecraft module. Cancelled 1989. Maneuver system consisted of two engines, each of 300 kgf. Expendable module for orbital maneuvering and experiments.
AKA: Navesnoy otsek.
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Gross mass: 3,000 kg (6,600 lb).
Unfuelled mass: 1,500 kg (3,300 lb).
Height: 1.40 m (4.50 ft).
Diameter: 3.60 m (11.80 ft).
Thrust: 5.88 kN (1,322 lbf).
Zarya Russian manned spacecraft. Cancelled 1989.' Super Soyuz' replacement for Soyuz and Progress. More...
N2O4/UDMH Nitrogen tetroxide became the storable liquid propellant of choice from the late 1950's. Unsymmetrical Dimethylhydrazine ((CH3)2NNH2) became the storable liquid fuel of choice by the mid-1950's. Development of UDMH in the Soviet Union began in 1949. It is used in virtually all storable liquid rocket engines except for some orbital manoeuvring engines in the United States, where MMH has been preferred due to a slightly higher density and performance. More...
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