China's Space Program Thread II

[AndrewS]

Elon Musk is quoted saying that a starship will fly once every hour in 4 years.

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It took like 10 years for Falcon 9 to ramp up to 1 launch every 2 weeks.

 

[tphuang]

But Musk has done enough feats which earlier scoffed at and dismissed off hand, for him to be taken seriously. Even if he undershoots by 24x, it is still 1 launch of starship a day (which is very easily feasible), implying over 36,500 tonnes of mass to orbit.

What if this is used to place say 35,000 tonnes of stainless steel rods (that are able to survive reentry, and have a terminal speed of 10 Mach) in orbit?

it's a waste of time to post this crap that he says. Honestly, it frankly hurts my intelligence level to have to deal with every lie that he says in the media.

anything more on will be deleted.

 

[Asug]

Well, that launch occurred not too long ago, carrying the IOT satellite series Tianqi-1 37, 38, 39 and 40, from Haiyang. Pictures are quite nice, and I believe this completes the first phase of the series so far, they are looking to launch hundreds more in the near future and then thousands more eventually down the line, it is China's first LEO IOT constellation.

This was the fourth launch in China in 2026.

https://imgur.com/a/7pJBrZ0

Next flight will be a CZ-3B from Xichang in about 14-16 hours.

Which vessel was this launch carried out from — Dongfang Hangtiangang, or, as they say, from the DeFu barge?

 

[PiSigma]

Well, during re-entry, there is oxygen and water, along with high temperatures.

But for one-time use, I guess it doesn't matter?

Rust is oxidization of Fe with Oxygen and water. It's literally in the formula. But it takes time, several million times more than the few minutes for something to fall from space.

 

[AndrewS]

Rust is oxidization of Fe with Oxygen and water. It's literally in the formula. But it takes time, several million times more than the few minutes for something to fall from space.

Then it's probably a combination of direct oxidation under high temperatures and/or structural strength of steel at high temperatures

 

[taxiya]

How is spacex using stainless steel for its booster and second stage re-entry then? Apparently, the temperature doesn't rise to that much due to reflection and radiative heat dissipation from stainless steel.

If you spend just a minute in studying you should know that starship 2nd stage relies on ceremic heat tiles, the stainless steel skin inside does NOT do the job that you think.

The first stage does not experience temeperature high, even aluminium 1st stage works for return, proven by your God's falcon 9.

We want to keep this thread professional, especially keep away from the "spaceX fanboyism", please do some homework before recycling Musk's BS.