Launch Success
Liftoff Time (GMT)
11:30:32
Friday March 10, 1967
First flight of Proton-K. First flight of the L1 lunar spacecraft.
Cosmos 146 was a Soviet test satellite precursor to the Zond series. The spacecraft was designed to launch a crew from the Earth to conduct a flyby and return to Earth. The Cosmos 146 and 154 flights have been regarded as tests of the Zond complex involving the firing of the fourth stage of the Proton K/Block D rocket to put the L1 spacecraft into an elliptical trajectory to test high speed re-entry. L1 was a Soviet spacecraft launched on Proton, designed in parallel of 7K-L1, which flew on the N-1 launcher. It was conceived to carry out crewed flybys of the Moon, like Apollo 8. This spacecraft sent the first living beings to fly over the Moon, turtles, on board Zond 5. The work made on this spacecraft will be used for the improvement of the Soyuz spacecraft.
Low Earth Orbit
1 Payload
5,017 kilograms
Manufacturer
KhrunichevRocket
Height: 56.14m
Payload to Orbit
LEO: 18,900 kg
GTO: 9,000 kg
Liftoff Thrust
8,840 Kilonewtons
Fairing
Diameter: 3.9m
Height: 8.9m
Stages
4
1st
Mission
1st
Mission of 1967
228th
Mission
9th
Mission of 1967
22nd
Orbital launch attempt