The
Sputnik 8A91 had more powerful 8D76 and 8D77 engines installed, increasing its payload capacity, and allowing it to launch much heavier satellites than
Sputnik 1 and
Sputnik 2. It was launched two times, in 1958. The first launch, on 27 April, failed due to vibrations that unexpectedly occurred during the flight along the
longitudinal axis of the rocket. On 15 May, it successfully launched
Sputnik 3.
Sputnik specifications • First Stage: Block B, V, G, D (four strap-on boosters), 4×Sputnik 8A91-0 • Gross mass: • Empty mass: • Thrust (): 4× • Isp (): • Isp (): • Burn time: 130 seconds (2 minutes, 10 second) • Diameter: • Width: • Length without nozzles: • Propellants:
LOX/
Kerosene • Engines: 1×
RD-107-8D76 per booster = 4 • Second Stage: Block A (core stage), Sputnik 8A91-1 • Gross mass: • Empty mass: • Thrust (): • Isp (): • Isp (): • Burn time: 360 seconds (6 minutes) • Diameter: • Width: • Length: • Propellants:
LOX/
Kerosene • Engine: 1×
RD-108-8D77 • Total mass: • Total width: •
LEO payload: • Total liftoff thrust: ==See also==