May 04

Space Rocket History #159 – Zond 6

Trouble began on the sixth day of the flight, November 17. The capsule developed an atmospheric  leak, the pressure first dropping from 760 to 380 mm of Mercury.  With the drop in cabin pressure all the animal test subjects died.  It would have killed any Cosmonaut not wearing a spacesuit.

Proton-K with 7K-L1

Proton-K with 7K-L1

Zone 6 mission profile

Zone 6 mission profile

Zond 6 Double-dip reentry

Zond 6 Double-dip reentry

Mar 16

Space Rocket History #153 – Zond 5 – Tortoises in Space & Nasa Stennis

The first attempt for a Zond 4 follow-up launched on April 22.  It failed when the Launch Escape System sent an erroneous abort command at T+260 seconds and shut down the Proton booster’s second stage. The escape rocket fired and pulled the descent module to safety.

Zond 5

Zond 5

Zond 5 Recovery

Zond 5 Recovery Indian Ocean

Scientist observing lunar Tortoises

Scientist observing lunar Tortoises

Mar 03

Space Rocket History #151 – Zond 4

When we left the Soviet Union they had somewhat successfully landed a probe on Venus and they had completed the automatic docking of two Soyuz 7K-OK spacecrafts.  However they did not reach their goal of a circumlunar flight in time for the 50th anniversary of the glorious revolution.

L1 - Zond

L1 – Zond

Mishin, Agadzhanov, & Chertok

Mishin, Agadzhanov, & Chertok

7K-L1 spacecraft on Proton booster

7K-L1 spacecraft on Proton booster