Tag: Long March 2C

Deleted

8:39 am

This post incorrectly reported a Chinese launch as occurring today when it had actually occurred (and was reported previously. I have therefore deleted it. Sorry about the error.

The leaders in the 2021 launch thus remain as follows:

23 China
20 SpaceX
12 Russia
3 Northrop Grumman

The U.S. still leads China 29 to 24 in the national rankings.

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China successfully lands rocket fairings softly

8:57 am

China’s state press today revealed that during the July 19th launch of its Long March 2C rocket it was able to successfully use parachutes and a control system in the rockets discarded fairings to guide them back to Earth more precisely and to land softly.

The technology tested in the fairing was a parachute-control electrical and parachute system to monitor the status of the reentry flight in real-time. With the new technology, when a fairing falls to a certain height and meets the conditions suitable for parachute deployment, the parachute opens to decelerate the fairing.

At a certain height of descent, a fairing will discard its drag chute, open its parafoil, and initiate deceleration a second time. During its slowdown, it will land in a safe area in a controlled manner.

CALVT [China Academy of Launch Vehicle Technology] said the technology was able to reduce the fairing’s original projected landing area by more than 80 percent, which significantly improved safety and reduced evacuation pressure in the area.

Does this technology remind you of anything? To me, it appears that China has watched what SpaceX has done and attempted to copy it.

The news release did not say if the fairing was damaged in landing. I suspect that it was damaged, or they would have told us otherwise.

Combined with the previously attempts to use parachutes and grid fins (also very similar to SpaceX’s) to control the landing of abandoned Long March 2C and 3B first stages, China is clearly trying to make their launches from within their country less dangerous to their own citizens. Even if they have not yet succeeded in bringing this rocket debris back intact so it can be reused, they are still gaining control of its re-entry so that they can not only predict more precisely where it will land, they can pick the spot.

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China launches four satellites

8:35 am

Using its Long March 2C rocket, China today successfully launched four satellites, three military reconnaissance satellites and one data communications satellite.

While the first stage crashed inside China (no word on whether it landed near habitable areas), China also claimed it attempted a recovery of the fairings for reuse. At this time no information has been released on what was achieved.

The leaders in the 2021 launch race:

23 China
20 SpaceX
11 Russia
3 Northrop Grumman

The U.S. still leads China 29 to 23 in the national rankings.

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China’s Long March 2C rocket launches three military satellites

8:28 am

China today used its Long March 2C rocket to launch three military reconnaissance satellites into orbit.

The rocket’s first stage uses highly toxic hypergolic fuels, and is expendable. Since it is launched from the interior of China, that stage always crashes on land, sometimes near residential areas. No word on where it crashed today.

The leaders in the 2021 launch race:

19 SpaceX
18 China
8 Russia
3 Northrop Grumman

The U.S. still leads China 27 to 18 in the national rankings.

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China Long March 2C rocket launches military satellite

8:55 am

China today used its Long March 2C rocket to put in orbit what it calls a “remote-sensing” satellite that is likely for use by its military.

Launched from an interior spaceport, this rocket’s first stage (using very toxic hypergolic fuels) will fall to Earth somewhere in China’s Guizhou Province. This has been China’s standard operating procedure for decades, sometimes resulting in such stages landing near residential areas.

The leaders in the 2021 launch race:

13 SpaceX
12 China
7 Russia
2 Rocket Lab

The U.S. still leads China 18 to 12 in the national rankings.

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Chinese launch and Rocket Lab scrub

11:36 pm

Electron on launchpad, June 11, 2020

Yesterday China used its Long March 2C rocket to launch an ocean observation satellite, while also testing both grid fins and a revamped fairing. The goal of the grid fins is to control the first stage’s return to Earth so that it won’t crash on top of any homes. The fairing change is to hopefully lead to their capture and reuse sometime in the future.

Late today, or actually early on June 11th, Rocket Lab tried to do its twelve commercial launch, but after three launch tries the high winds won out and they had to scrub. The image to the right shows the Electron rocket on the launchpad. If you look close, you can see the wind whipping the LOX evaporating off the rocket.

The leaders in the 2020 launch race:

11 China
8 SpaceX
7 Russia
3 ULA

The U.S. continues to lead China 13 to 11 in the national rankings.

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China launches three satellites with its Long March 2C rocket

8:39 am

China today successfully placed three military surveillance satellites into orbit, using its Long March 2C.

This rocket uses toxic hypergolic fuels, and is designed for placing satellites in low Earth orbit. Its first stage will likely fall somewhere in the Chinese interior, where the government will warn residents of the danger.

The leaders in the 2020 launch race:

6 China
5 SpaceX
4 Russia
2 Europe (Arianespace)

The U.S. still leads China 8 to 6 in the national rankings.

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Video of Long March 2C grid fins used in July

9:01 am

China Central Television has released a very short video showing the grid fins used during the July 26 launch of China’s Long March 2C rocket in order to better control the descent of that rocket’s expendable first stage.

I have embedded the video below the fold. It shows the four grid fins unfolding, but not much else. It also reveals that the Chinese very clearly were inspired by SpaceX’s Falcon 9 grid fin design.

The video also gives me the impression that the Long March 2C first stage does not have any thrusters, which were SpaceX’s primary mode for controlling its first stages, the grid fins added later when they understood better the engineering required. Thus I suspect that the fins were not very successful in controlling that stage’s flight.

Nonetheless, the Chinese are doing these tests during operations, which means they are only a first step on a path to success.
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China tests controlled flight for returning first stage

9:41 am

Chinese news sources today confirmed that during its last launch on July 26, they tested the use of grid fins (essentially copied from SpaceX’s Falcon 9) to control the return flight of the first stage of their Long March 2C rocket.

The success of the test is of great significance for improving China’s inland rocket landing safety, minimizing the inconvenience to the local people, as well as promoting the follow-up development of carrier rockets’ controllable recovery, soft landing and reuse, according to He Wei, an official with the CASC.

“The swinging grid fins were used to control the rocket debris’ direction and attitude, much like the wings of the debris,” said Cui Zhaoyun, the deputy chief designer of Long March-2C rocket. The landing site control of large and medium rockets is much more difficult than that of small rockets, he added.

For almost forty years China has allowed these first stages to crash, sometimes very close to villages and habitable areas. Now, inspired by what freedom and U.S. innovation has accomplished, they have finally begun the process of figuring out how to land these stages vertically. Since their propellants are very toxic, it is not clear however whether they will be able to reuse them should they succeed in landing them undamaged.

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China successfully launches Chinese/French ocean research satellite

9:02 am

A joint Chinese/French ocean research satellite was successfully launched by China today using its Long March 2C rocket.

The leaders in the 2018 launch race:

30 China
17 SpaceX
9 Russia
8 ULA
7 Europe (Arianespace)

China now leads the U.S. 30 to 26 in the national rankings. Its 30 launches this year smashes its previous launch high of 20 successful launches, and suggests that China is going to come close to its predicted 40 launches for 2018.

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China launches ocean survey satellite

9:42 am

Locations of two of China's launchsites

China today launched the third satellite in a constellation of ocean-observing satellites, using its Long March 2C rocket.

Though this is the same rocket that dropped its upper stage near a Chinese town in June, the launch came from the Taiyuan launch site, not the Xichang launchsite used in June, so it is unclear if the upper stages fell near populated areas. I would expect so, however, since Taiyuan is located in the middle of China even closer to populated areas than Xichang, as shown on the map to the right.

If the launch went north from Taiyuan, then those upper stages probably landed in Mongolia. I wonder if China has worked out an agreement with that country about dropping toxic first stages onto its territory.

Regardless, in the 2018 launch standings, China now leads the U.S. 24-22. The leaders in the race, with the leading U.S. companies broken out, are as follows:

24 China
15 SpaceX
8 Russia
6 ULA
5 Europe

As mentioned previously, with every launch for the rest of the year China will set a new annual record for itself.

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Long March 2C first stage crashes into Chinese town

9:04 am

Footage showing the first stage from yesterday’s Long March 2C launch crashing into a city has now been released.

The Chinese government issues warnings and even evacuates areas calculated to be under risk of impact during these interior launches, but it appears that many locals stick around to film the event. I have embedded below the fold this most recent footage.

The fuel from the first stage of the Long March 2C is very toxic, so China is increasingly facing a bad PR problem they don’t want. They are using their space program, much like the Soviets did, to highlight China’s new first world status. Images of an out-of-control rocket crashing into populated areas does not serve that purpose well. Expect them to accelerate their efforts to either develop reusable first stages, and to abandon this launch site.
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China launches two satellites

9:40 am

China today successfully launched what it called two “technology test satellites,” using its Long March 2C rocket.

No further information about the satellites was released. The Long March 2C is comparable to India’s PSLV rocket, and thus is used for smaller payloads.

The leaders in the 2018 launch standings:

18 China
11 SpaceX
7 Russia
5 ULA
4 Japan

This launch puts China ahead of the U.S. in the national race, 18-17, though SpaceX’s Dragon launch later this week should tie things up again.

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