Why does Voskhod programme was cancelled so soon?

[Pawelk198604]

as above

[Canopus]

Probably abandoned in favor of other manned programs like Zond and eventual lunar missions using the more advanced Soyuz.

[Bill Phil]

It was a stopgap intended to do something (multi-man crews, EVAs) as soon as is practical (if not sooner), and it wouldn't have been capable of much beyond what the two missions accomplished. As such, they also abandoned it as soon as was practical in favor of the designs for the moon mission, which evolved over time.

Compare this to Gemini, where the express purpose was to quickly develop a spacecraft to test the ideas behind the Apollo missions - orbital rendezvous, docking, long term EVAs, longer mission durations, and so on. 

Voskhod was pretty much just PR. Gemini was PR used to develop the concepts and techniques for even bigger PR (Apollo).

[kerbiloid]

Voskhod was just a "what else can we get from Vostok, while it is still here".
It had no cruise engines, no habitat, no docking capabilities, no place for EVA, etc.
It had spherical capsule, so high acceleration on aerobraking.

Like using Mercury instead of Gemini.

[Nibb31]

Voskhod was a death trap and none of its flights performed properly. It didn't have ejector seats like Vostok, but landing rockets that were attached to the parachute lines.

They knew they were pushing the envelope of the Vostok design and that it would end tragically. Its only purpose was: send first three astronauts into space before the americans, and do the first EVA. It really wasn't capable of much else, so they cancelled it as soon as there were no more "firsts" to get out of it and before anyone would get killed.

 

[NSEP]

A Voshkod spacecraft is just a Vostok capsule made to do a few cool things, but it turned into a deathrap. Voshkod is kind of like a closet made to be a boat or something. The Vostok ball capsule isn't dead though, the last time it launched was in 2014, i think

https://en.wikipedia.org/wiki/Bion_(satellite)#Bion-M

https://en.wikipedia.org/wiki/Foton_(satellite)

[Ultimate Steve]

Originally, there were supposed to be four more Voskhod flights, but they were cancelled for the reasons above.

From Wikipedia:

• Voskhod 3 – 19-day two-man mission to study long-term weightlessness with artificial gravity, medical, military and other experiments [1]
• Voskhod 4 – 20-day single-man mission to study long-term weightlessness with artificial gravity, medical, military, and other experiments [2]
• Voskhod 5 – 10-day two-woman mission with medical and other experiments and first female EVA-spacewalk [3]
• Voskhod 6 – 15-day two-man mission with military and other experiments and multiple spacewalks to test new EVA jet belt [4]

[magnemoe]

On 6/9/2018 at 11:47 AM, NSEP said:

A Voshkod spacecraft is just a Vostok capsule made to do a few cool things, but it turned into a deathrap. Voshkod is kind of like a closet made to be a boat or something. The Vostok ball capsule isn't dead though, the last time it launched was in 2014, i think

https://en.wikipedia.org/wiki/Bion_(satellite)#Bion-M

https://en.wikipedia.org/wiki/Foton_(satellite)

A lot like spaceX dragonlab idea. Also makes sense to use an cheaper capsule for this. 

[Reactordrone]

The Vostok/Voskhod vehicle was also the basis of a family of reconnaissance satellites, http://www.astronautix.com/z/zenit-2satellite.html

Probably the most widely used re-entry vehicles ever flown.

Edited June 11, 2018 by Reactordrone

[NSEP]

1 hour ago, Reactordrone said:

Probably the most widely used re-entry vehicles ever flown.

Probably, in fact, i have seen one in real life.

(not my pic)

[Canopus]

So Bion, Resurs, Zenit and Foton all use the basic Vostok design? Some even today? Thats cool.

[kerbiloid]

4 hours ago, Canopus said:

So Bion, Resurs, Zenit and Foton all use the basic Vostok design? Some even today?

A special 2 m aluminium sphere with secret pi value .