khoji parkSpace · Ural Mountains · 1969
A Cosmonaut Came Back to Earth Facing the Wrong Way
A failure to separate modules caused a nose-first ballistic descent
Read in slides1. Historic Orbital Docking
Soyuz 5 launched on January 15, 1969, carrying commander Boris Volynov and flight engineers Aleksei Yeliseyev and Yevgeny Khrunov. The mission successfully docked with Soyuz 4 in orbit. The flight achieved the first crew transfer between two spacecraft via a spacewalk. Yeliseyev and Khrunov transferred to Soyuz 4 for their return to Earth.
Volynov remained aboard Soyuz 5 for the solo return trip.
2. Service Module Malfunction
Volynov prepared for re-entry on January 18, 1969, after completing orbital operations. The service module failed to separate from the descent module after retrofire. This mechanical failure created a severe hazard for the ballistic descent. Mission control could not alter the automated sequence once initiated.
The combined spacecraft began its descent into the upper atmosphere.
3. Nose-First Aerobraking
The combined spacecraft sought the most aerodynamically stable position during re-entry. It entered the upper atmosphere nose-first with the heavy descent module facing directly into the air stream. The light metal entry hatch at the front served as the primary thermal shield. Gaskets sealing the hatch began to burn from the intense heat.
Dangerous fumes and smoke filled the crew compartment.
4. Extreme Deceleration Forces
Deceleration pulled Volynov outward against his restraining harness rather than his padded seat. Thermal and aerodynamic stresses increased rapidly on the joined modules. Struts connecting the descent and service modules eventually broke off and burned through. The descent module finally righted itself once the service module separated.
The proper heat shield rotated forward to face the airflow.
5. Parachute Complications
The spacecraft’s modules did not separate as intended before re-entry. The descent module consequently entered the atmosphere in the wrong orientation, with the other sections still attached. Boris Volynov remained inside while heating and aerodynamic forces acted on the joined vehicle. Only after the connection failed could the descent module take up its intended orientation.
The descent was still followed by another difficulty near the ground.
6. Winter Wilderness Walk
The parachute descent and landing were also abnormal. Volynov struck the ground hard enough to injure his teeth but survived inside the capsule. The spacecraft had come down away from the intended recovery area in winter conditions. Search and recovery teams still needed to reach him after the separate problems during re-entry and landing.
Volynov survived the return and was recovered.
7. Local Shelter Found
Volynov reached a local peasant's house and secured shelter from the extreme cold. Rescue teams eventually located the landing site and tracked the injured cosmonaut to the cottage. He received medical attention for the physical trauma sustained during the hard landing. Soviet authorities transported him from the region for medical recovery.
Volynov recovered from his injuries over an extended period.
8. Mission Legacy
Volynov survived the abnormal reentry and the hard landing, although the impact injured him. His two original crewmates had already transferred to Soyuz 4 and returned in that spacecraft. The joint mission therefore ended with two different return sequences: their planned landing and his emergency descent. The docking and spacewalk transfer had succeeded before Soyuz 5’s separation problem threatened its lone returning occupant.
All four cosmonauts returned, in two separate spacecraft.