China Space Military：Recon, Satcom, Navi, ASAT/BMD, Orbital Vehicle, SLV, etc.

[qwerrty]

This sinosoldier always spread pessimism about China technology advancement. He could not get his facts right and then start jumping as inferior. Even when China achieve major advancement, he will try to play down. I think he has an agenda here.

he forgot other boosters with similar diameter are multiple times longer

 

[Beast]

he forgot other boosters with similar diameter are multiple times longer

I will not be surprised he goes to Indian section and admire how powerful their Mark 3 GSLV rocket.
This sinosoldier knows nothing about China military technology advancement.

 

[Akasa]

5-6m for 150 tons is quite low?

No. The thrust is directly proportional to the length of a booster. If more segments are added, a booster of, say, 25m in length, will have a thrust of 600-700 tons in this case.

Mind you, India's S200 with a diameter of 3.2m and 25m in length, has a thrust of 400 tons.

Fair point; I wasn't aware that total thrust is directly proportional to the length and number of segments. My apologies if I had caused any confusion.

What is the length of the test motor? Are your figures your own estimates or something stated in the articles?

I will not be surprised he goes to Indian section and admire how powerful their Mark 3 GSLV rocket.
This sinosoldier knows nothing about China military technology advancement.

Why, because I don't conform to the stigmatized notion that everything built by the Chinese automatically outstrips their Indian counterparts?

Spare me the diatribe.

 

[Han Patriot]

it's the specific impulse that count. haven't you noticed india has very long fat@ss icbms and launch vichicles than china's, but only half the range and lesser payload lolz

That's wht I realise too, I have a feeling their mastery of rocket technology is rudimentary.

 

[lcloo]

The test booster rocket has ZF-9 painted, so I speculate that it is the booster for CZ-9 rocket, the new heavy weight rocket under development. Also beause it is in development in same time frame as CZ-9 rocket.

From the picture below, we can see that there are 4 booster rockets attached to CZ-9 launch rocket. And each booster has 5 segments ( about 50 metres long). That is quite clear the huge power of these booster rocket.

 

[Akasa]

The test booster rocket has ZF-9 painted, so I speculate that it is the booster for CZ-9 rocket, the new heavy weight rocket under development.

From the picture below, we can see that there are 4 booster rockets attached to CZ-9 launch rocket. And each booster has 5 segments. That is quite clear the huge power of these booster rocket.

View attachment 322890

It's unlikely that the designation of a test motor is indicative of its prospective usage. However, it does come as a minor surprise that the CZ-9 team is still considering solid-fueled boosters (or perhaps both liquid- and solid-fueled ones). The consensus was that the CZ-9 were to use a cluster of four YF-500 engines for each booster instead.

 

[JSCh]

Chinese researchers plan space travel at lower cost for common people
By Guo Kai (chinadaily.com.cn) Updated: 2016-08-02 13:47

A screenshot shows an artist's impression of the new vehicle integrating different kinds of engine technologies. [Photo/chinadaily.com.cn]​

Chinese scientists are researching a new type of aerospace vehicle that will take even those who have never had training to space in about 10 years' time at a much lower cost compared to the current price.

China Central Television (CCTV) reported Monday that scientists from China Aerospace Science and Technology Corporation have started work on a new vehicle integrating different kinds of engine technologies.

The vehicle will integrate air-breathing engines, such as turbine and ramjet engines, and rocket engine, which would allow it to operate as a normal plane in the atmosphere and as a rocket in space.

Researchers said the new vehicle will be reusable and take off and land at normal airports, without the need for special launch pads like the current rockets require, which will reduce cost substantially.

Zhang Yong, a scientist from the corporation, said they expect to master key technologies in about three to five years, and significantly improve the vehicle's capability during the application.

The vehicle is expected to be used for suborbital flight and orbital insertion by 2030, Zhang said. The expeditions will be between dozens to hundreds of kilometers from the earth.

A screenshot shows an artist's impression of the new vehicle integrating different kinds of engine technologies. [Photo/chinadaily.com.cn]​

Compared with the space shuttles and the partially recovered carrier rockets, the new vehicle integrating different engines has much more advantages in maintenance and application, CCTV reported.

In early July, China Academy of Launch Vehicle Technology, an institute of the corporation, said on its website that it was coordinating with other institutes to study the new vehicle.

Yang Yang, an engineer of the institute, said that common people will not need special training to travel to space on the vehicle.

He said the current rocket engine provides great propulsion during the start of flight, adding overload times of people's weights, which is unbearable for most people, but people would be able to endure the slow acceleration on the new vehicle.

A screenshot shows an artist's impression of the new vehicle integrating different kinds of engine technologies. [Photo/chinadaily.com.cn]​

Currently, people enjoy real space travels through two ways - the suborbital flight that allows people to enjoy couple of minutes of weightlessness but it costs more than $100,000 and the orbital flight that costs around $20 million.

Some private companies, especially in the US, can provide suborbital flights. But if people want an orbital flight, then they would have to go on a Russian space ship at present.

The US company SpaceX's carrier rocket with reusable parts has started cargo service to the International Space Station, but it is still unclear when it will be able to provide private space travel service and it might cost tens of millions, according to reports.

 

[lcloo]

I think those words in bold letters is a very good indicator that CZ-9 is the one mentioned below. The other Large and Heavy launch rocket is CZ-5 and its development is already completed, and will be launched from Hainan island very soon.

From state media CCTV weibo:
Forwarding congratulations! China's largest aerospace diameter solid rocket motor ignition experiments successfully [Applause]] Today, China independently developed the first 3 meters diameter solid aerospace engine in Xi'an, completed the first ignition experiments, and this is by far the largest aerospace solid rocket motor, the core technology would in the future apply to China's large and heavy rocket launchers, marked the development of the space carrying capacity of our country has entered a new milestone.

Source: https://defence.pk/threads/chinese-space-capabilities.84216/page-90#ixzz4GFrB0CU8

 

[qwerrty]

A screenshot shows an artist's impression of the new vehicle integrating different kinds of engine technologies. [Photo/chinadaily.com.cn]​

that pic is skylon spaceplane concept from reaction engines company

cctv actually just using skylon animation clip for illustrative purpose only, because the chinese one plan to use similar type engine too. chinadaily guy should be fired for misleading or for not checking facts lol

 

[JSCh]

China's lunar rover Jade Rabbit retires
Source: Xinhua 2016-08-03 16:02:39

BEIJING, Aug. 3 (Xinhua) -- China's lunar rover Jade Rabbit, launched as part of the Chang'e-3 lunar mission in 2013, has stopped operations, according to an official announcement.

The State Administration for Science, Technology and Industry for National Defense (SASTIND) said on Wednesday that Chang'e-3, China's first lunar lander, has operated on the moon for 31 months, exceeding its design life by 19 months.

Chang'e-3 entered its 33th lunar night on July 28. A lunar night lasts approximately 14 earth days.

According to SASTIND, the Chang'e-3 has collected a large amount of scientific data, and the Jade Rabbit, far exceeding its design life of three months, completed many challenging missions for Chang'e-3, such as obtaining images of the moon's geological layers for the first time.

 

[Akasa]

Update: the length of the 3-meter-diamater solid fueled motor is 8.6 meters.

This would puts its thrust-to-length ratio lower than that of the S200, P238, or SRB, but the comparison isn't exactly a gospel to its potential, given the short overall length of the test platform and differences in physical configuration.

 

[星海军事]

Update: the length of the 3-meter-diamater solid fueled motor is 8.6 meters.

This would puts its thrust-to-length ratio lower than that of the S200, P238, or SRB, but the comparison isn't exactly a gospel to its potential, given the short overall length of the test platform and differences in physical configuration.

Trust-to-length ratio is significative only when the solid rocket engines have the same diameter.

 

[Akasa]

Trust-to-length ratio is significative only when the solid rocket engines have the same diameter.

Which they do. The S200 has a 3.2 m diameter and the P238 3.06 m. Slightly varied, perhaps, but certainly not to the extent that would invalidate any extrapolations that require the thrust-to-length ratio.

 

[JSCh]

Two CZ-2F rockets transferred to launch center in China
2016-08-03 17:08:00 CRIENGLISH.com Web Editor: Zhang Shuai

A screenshot of CCTV shows one part of the CZ-2f carrier rocket is being carried to the train. [Photo: ifeng.com]

China is transferring two of its Long March II F or CZ-2F carrier rockets to their launch site in the west of the country.

This is the first time that two CZ-2F rockets are being transferred to the launch center at the same time.

One of the carrier rockets is scheduled for launch in the third quarter of this year to send the Tiangong-2 space laboratory into space. The other carrier rocket will lift off later carrying two astronauts to dock with the space laboratory and embark onto the Tiangong-2.

During their planned 30 day stay at the space laboratory, the two Chinese astronauts will carry out a variety of scientific research and applications, testing some key techniques and exploring the possibility of long-term human residence in space.

Jing Muchun, chief commander of CZ-2F rockets explains:

"Let's put it this way; it's the start of the final battle of the mission of Tiangong-2 space laboratory. We are going to complete the en-masse lifting and thorough checking of the rocket, upon its arrival at the launch center. The rockets have to be sent into space without a hitch, hidden or otherwise. This is our ultimate goal."

Compared with their immediate predecessors launched in 2011, only a few improvements have been made on the new type of CZ-2F rockets, which experts say indicate the maturity of the techniques and technology used on this rocket.

 

[onebyone]

Largest solid-fuel rocket motor for Long March 9 (CZ-9, 长征九号)

Largest solid-fuel rocket motor for Long March 9 (CZ-9, 长征九号)

SciNews

Published on Aug 2, 2016
China’s largest solid-fuel rocket motor
The China Academy of Launch Vehicle Technology (CALT) successfully conducted an ignition test of their largest solid-fuel rocket motor, expected to be used in future super heavy-lift launch vehicle Long March 9 (LM-9, Changzheng 9, CZ-9, 长征九号). The first three meters solid rocket engine was fired for 100 seconds, reaching a temperature of 3000 degrees Celsius, in Xi'an, Shaanxi province.