China's Space Program News Thread

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LesAdieux

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Re: the Long March 5

Not many years ago, the computer graphics card are all using AGP socket, cause they found it "more promising" than the old PCI socket techonology.

PCI got breakthrough later, and nowadays, almost everybody using PCI-E socket for graphics card.

Funny anyone is considering "certain technology is superior than certain-other technology".


the most advanced tech is still the staged combustion: highly efficient with no loss of fuel at all; highly reliable, just look at the space shuttle's main engine, you can start and restart it like a car, no malfunction in 30 years.

the drawback is that it is complex and expensive, SSME has five times more parts than RS-68.
 

Red___Sword

Junior Member
Re: the Long March 5

the most advanced tech is still the staged combustion: highly efficient with no loss of fuel at all; highly reliable, just look at the space shuttle's main engine, you can start and restart it like a car, no malfunction in 30 years.

the drawback is that it is complex and expensive, SSME has five times more parts than RS-68.


I got your point, but I hope you got my point also.

The breakthrough of technology is neither linear, nor "only one solution".

I have no further comments on "why someone do not stick to some solution of certain technology?"
 

tphuang

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Re: Chinese Satellites

China has launched another Beidou satellite. It is apparently the ninth one thus far. This is just from the Beidou-2 series and includes the experimental one launched in 2007.
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tphuang

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Re: china manned space - news and views

News about China getting ready to launch the first part of its own experiment space station with Tiangong-1.

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Blitzo

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Re: china manned space - news and views

Another lengthy article by rick fisher, this time on chinese space plane developments.
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He extrapolates a bit much, but the information he manages to glean is all fairly open source and arguably reliable. If the US had more people like him and took their findings seriously and made them mainstream, they could respond with their own counters. But right now the severe underestimation and lack of "transparency" (if only they hired some people to trawl chinese bbs sigh) could hurt them in future.
 

tphuang

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Re: Chinese Satellites

btw, there is some speculation that this new Haiyang-2 satellite is used for the ASBM program. It certainly doesn't get the same notoriety as Yaogan series.
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A Chinese ocean observation satellite launched Monday on a Long March rocket from the Taiyuan space center in northeastern China, according to state-run media.

The Haiyang 2A satellite lifted off at 2257 GMT (6:57 p.m. EDT) from the Taiyuan launching base in Shanxi province, the state-owned Xinhua news agency reported. Launch occurred at 6:57 a.m. local time in Beijing.

The remote sensing payload flew into orbit on top of a Long March 4B rocket, which placed the satellite in a 565-mile-high orbit with an inclination of 99 degrees, according to independent tracking data.

Xinhua declared the launch a success in its reporting.

China says Haiyang 2A will aid the supervision and survey of the maritime environment, helping prevent potential disasters at sea and contributing to marine weather forecasts.

The satellite features upgrades over two earlier ocean observing craft launched by China in 2002 and 2007. Haiyang 2A will study dynamic ocean environments such as sea surface winds, wave height and water temperatures.

Its instruments include a microwave sensor, a radiometer and an altimeter.

Earlier Haiyang 1 satellites monitored ocean pollution and shallow waters to help in the operation of harbors and ports. A third generation of satellites is planned to combine the Haiyang 1 and Haiyang 2 missions.

Monday's Long March flight was the eighth space launch of the year for China's space program.

The nation plans a feverish pace of space missions for the rest of 2011, including the launch of a man-rated space laboratory, the program's first orbital docking attempt, and more rocket flights with communications, military and scientific payloads.
 

LesAdieux

Junior Member
the satellite didn't reach the intended orbit due to the malfunction of the LM-2C

btw, there is some speculation that this new Haiyang-2 satellite is used for the ASBM program. It certainly doesn't get the same notoriety as Yaogan series.
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this is the first launch failure since 1996
 

LesAdieux

Junior Member
CAST has issued a one sentence statement saying they are investigating the cause

any chance to rescue the satellite using engine on board
 
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