China's Space Program Thread II

[by78]

Hainan Commercial Spaceport has

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　　6月30日，海南商业航天发射场正式宣布已具备执行发射能力，这意味着历经短短两年时间，该发射场现在已经能够承接火箭发射业务并实现商业化运营，今年下半年，该发射场将迎来首次火箭发射。

 

[by78]

The mini rover carried by Chang'e-6 is called "golden toad" (金蟾), which took the selfie of the Chang'e-6 lander (3rd image).

One more image of the mini rover. It's equipped with a camera on both its topside and bottom side, so it can continue to take photos even if flipped over. I can operate autonomously or be remote controlled wirelessly.

 

[by78]

I heard static test is supposed to be done at half thrust but the press release says the rocket produce 820 ton of thrust which is bigger than the thrust listed in Wikipedia (770 ton). Could this be a case of someone forgot to set the engines to half thrust and the clamp weren't designed to withstand that much thrust?

If I'm reading this

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correctly, the test stand has the load bearing capacity of 600 tons. If the specification in the patent is current, then the failure may have been the result of a failure to cap the thrust.

 

[by78]

Tianlong-3's static test stand.

 

[enroger]

If I'm reading this

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correctly, the test stand has the load bearing capacity of 600 tons. If the specification in the patent is current, then the failure may have been the result of a failure to cap the thrust.

If this is true then it's a clear case of management failure. They know full well their test rocket far exceed that thrust figure, and it doesn't cost that much to beef up the test stand.

 

[SteelBird]

I read that Tian Long 3 rocket accidentally fire off from its launch pad and crashed into forest nearby.

 

[tiancai8888]

Tianlong-3's static test stand.

You have to consider the weight of the stage by itself. As far as I know, They've load tank full when testing. It means roughly 400t of the stage weight VS 820t of thrust. That's 420t load onto the pad. Still got 180t to spend.

So the test stand may ok after all. Clamp failure then

 

[enroger]

You have to consider the weight of the stage by itself. As far as I know, They've load tank full when testing. It means roughly 400t of the stage weight VS 820t of thrust. That's 420t load onto the pad. Still got 180t to spend.

So the test stand may ok after all. Clamp failure then

What if they want to test longer burn and weight gets much lighter? This is way too little margin no matter how you slice it

 

[escobar]

Hainan International Commercial Aerospace Launch (HICAL) ready for rocket launches

 

[escobar]

3D image of Jiajin Mountain obtained by Beijing-3 sat using multi-angle stereo imaging mode