China's Space Program News Thread

[anzha]

I noticed it on the cone of one of the boosters before they separated but I have no idea if it was paint. Paint is harmless. If I recall correctly it was ice that fell off the space shuttle and caused damage.

An investigation board determined that a large piece of foam fell from the shuttle's external tank and breached the spacecraft wing. This problem with foam had been known for years, and NASA came under intense scrutiny in Congress and in the media for allowing the situation to continue.

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[PeoplesPoster]

I was laughing at you making shit up.

Comparing the actual real foam debris falling off Columbia and imaginary "paint" (lololololololol) falling off LM-5, is not the same. Even if the paint falling off part is real btw you guys are idiots for believing this is how it works, it doesn't "fall off"... paint becoming debonded from a surface due to heat is no longer a solid. Even if it was a piece of chipped off cracked paint 1mm or so thick (arbitrary assumption), that piece would have less than 0.1% of the KE compared to that piece of foam in the Columbia incident.

No amount of vibration can remove set paint that wouldn't tear the entire vehicle apart into literally a million plus pieces.

Learn some basic physics.

First off... made up "paint falling off"

Secondly, paint doesn't "fall off"

Third even if a defective paint somehow has cracked and actually fallen off as a solid piece, it would have nowhere close to enough energy to do even a single scratch let alone penetrate the material. The foam for Columbia is different and I don't want to explain that physics because it's clear even the more basic stuff isn't being understood.

Do you really think a giant >1m^2 piece of paint somehow cracked off due to "vibrations" and remained solid? At most it would be 1cm^2 or so even if we assume that's true. Never before has paint chips been an issue in China or abroad. The paint coat on the rocket isn't just your everyday stuff. They've been launching vehicles for 50 years and not one has been scratched by falling paint lol.

eh it wasn’t imaginary paint, there was in fact paint flaking off the rocket, but likely not a huge deal.

Can see it start peeling off at about 54:14 of the official stream by CGTN.

 

[ougoah]

eh it wasn’t imaginary paint, there was in fact paint flaking off the rocket, but likely not a huge deal.

Can see it start peeling off at about 54:14 of the official stream by CGTN.

Thanks for the link. I assumed he made that up since we didn't see any evidence until you posted this.

There is no parallel between what Tidalwave's (new name Gadgetcool) trolling about imaginary falling paint and the foam incident wrt Columbia shuttle. One may as well say something like rockets can bump into birds on their way up and ooooooh everyone should be really careful of those birds and clouds because rockets are fast, woooooosh, and that means collisions could break holes or compromise the craft, bang!

Don't legitimise Gadget's trolling with real issues and events. What these lower intelligence people love doing is claim something stupid or untrue and then associate it with something real but different. It's something Jai Hinds absolutely love doing online. Associating their claims with a separate real thing is an attempt to legitimise their claim.

Paint flaking off from heat is at most a threat to the surface the paint is covering only if the paint serves a purpose other than aesthetics. There is no risk to surrounding attachments which in China's case there aren't any. This is nothing like the Columbia foam issue.

 

[SilentObserver]

I am very worried with SpaceX Starship, the US Space Force is surely salivating for having such a rocket enter their arsenal. The possibilities are absolutely huge for military purposes and none of these are any good for China.

Anyway this is offtopic so I will stop here, I just mentioned this because I find this development very concerning as the Space Domain will become the next battlespace in the near future

This comment dug up some old memories. I remember reading about this a decade and a half ago in a Popular Science magazine. US had been working on the concept of deploying marines to anyplace on the planet within 2 hours using scramjet/rocket spaceplanes. An added benefit is the high altitude of flight would mean they won't need to negotiate passage through foreign airspace. This would enable operating in enclaves and logistically difficult regions. "According to international agreement, a nation's airspace extends 50 miles from the Earth's surface, just short of low orbit. A spacecraft would allow the U.S. to step over other countries and insert forces where they're needed."(p.59)

Found the article starting on p.56 of January 2007 edition of Popular Science magazine.

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The Ithacus troop transport concept from the 1960's is the closest to the starship as both are vertical take off and vertical landing rocket concepts.

If the technology is viable, I think the US military will test this concept.

 

[ougoah]

Firing relatively dense paper mache shaped rod onto an MBT at a speed that gives it equal KE to an APFSDS round will not do any damage to the tank's armour. Because the structural integrity of that paper mache round is close to nothing.

That paint flakes off in small parts. It wasn't even the entire patch which looks to be in total roughly about 1m^2. It peels off in specks and even if it was the entire thing smashing into the vehicle somewhere, it has no structural integrity to do any damage. Foam insulation does have a lot of structural integrity. Paint has no tensile strength at any elongation. It has no compressive strength and it has no fracture toughness of any significance. Foam has, and many orders of magnitude greater than paint speck. Foam given enough KE could (and has) punched through hard and relatively thick material. The density between the two is also worlds apart. The penetrating factor ditto. Again nothing remotely close to being a threat to the rocket or any vehicles attached even if there was one.

There is no comparison or equivalence between foam and paint. Like you couldn't replace your plastic spoon with a butter spoon. There is no equivalence or relevance between this and the foam caused disaster on Columbia. Connecting the two is absolutely stupid and/or trolling. This also isn't happening in orbit with relative velocities many, MANY times greater than here during boost.

 

[AssassinsMace]

I'm getting Ultra vibes here like when he went all four alarms when pictures of China transporting "DF-41s" "unescorted" on Chinese highways meant a foreign country could hi-jack them like if they did somehow China would have to let it happen with no retaliation on the guilty country like it was international law. Or how about a kid I talked to who believes the US has special forces hiding in all countries in the world like somehow they won't be discovered? If any of these scenarios where the US had military hiding in China or the had a space ship that could land in China in a couple hours happened, that would be an act of war. China would have the right kill any foreign military hiding in China and shoot down any space ship the US tries to land. Like a rocket ship isn't going to be detected before it lands?

 

[AssassinsMace]

A nice 3D animation.

 

[halflife3]

This is the Tianhe-1 Core Module Diagram, could someone translate it?

 

[halflife3]

I found the translated floor plan.

 

[by78]

High-resolution images from the launch and much more...