D-1 n°01

Launch Failure

Liftoff Time (GMT)

09:01:00

Sunday April 27, 1958

Mission Details

Launch Notes

First flight of the upgraded version of Sputnik, 8A91. At T+90 seconds, abnormal vibrations originating from the strap-ons boosters were detected, followed by breakup of the vehicle 7 seconds later. First Soviet failure.

D-1 n°01

Wiki

D-1 n°01 was an automatic scientific laboratory spacecraft. It was conically shaped and was 3.57 m long and 1.73 m wide at its base. It weighed 1,327 kg and carried twelve scientific instrumentation. Despite the failure of the launch, a new copy was launched a few weeks later, which reached the orbit. It was named Sputnik 3.

Low Earth Orbit

1 Payload

1,327 kilograms

Rocket

Retired
Sputnik 8A91

Active in 1958

OKB-1 logo

Manufacturer

OKB-1

Rocket

Height: 30.41m

Payload to Orbit

LEO: 1,330 kg

GTO: 0 kg

Liftoff Thrust

4,457 Kilonewtons

Fairing

Diameter: 3m

Height: 4.21m

Stages

2

Strap-ons

4

Launch Site

Site 1/5

Baikonur Cosmodrome, Kazakhstan

Fastest Turnaround

23 hr 32 min

Stats

Sputnik 8A91


1st

Mission

1st

Mission of 1958

OKB-1


3rd

Mission

1st

Mission of 1958

1958


6th

Orbital launch attempt