China's Space Program News Thread

[by78]

High-resolution images of the latest CZ-4C launch from yesterday, the 416th launch of the Long March series.

 

[by78]

High-resolution images of taikonauts' return.

 

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[taxiya]

Do you have any info on the other performance parameters of the engines? Like Isp or the fuel it uses? I assume the older engine had better Isp because of the engine bell nozzle geometry.

The Chang'e variant used Hypergolic propellant. I believe the Tianwen variant is the same as it is not a new engine.

Chang'e variant has 308s in vacuum. However, Tianwen engine is only used in Marsian atmosphere although very thin, so its "atmospheric" isp may be similar". But of course if used in vacuum, the Tianwen variant will have a worse isp because of the nozzle size.

The main change to reduce size is increasing the pressure of the combustion chamber.

 

[taxiya]

Whats with the last photo??

Event held by Chinese Embassy to US on April 9th.

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[iantsai]

CNSA launched 11 rockets between 2022-01-01 and 2022-04-16.

If it's planning to launch more than 50 times in 2022, then it's about 4 launches behind schedule.

 

[by78]

A few more high-resolution images of returning taikonauts from the Chinese space station.

 

[by78]