Archive for ‘hardware’

05/05/2020

China launches manned spacecraft prototype with new Long March 5B rocket

  • Modified version of country’s most powerful rocket carries next-generation capsule designed to take astronauts to its planned space station
  • It will be able to launch and land with three crew members and up to 500kg of cargo, according to state media
China launched a new version of its heavy-lift Long March 5 rocket on Tuesday. Photo: Reuters
China launched a new version of its heavy-lift Long March 5 rocket on Tuesday. Photo: Reuters

China successfully launched a prototype of its next-generation manned spacecraft – without astronauts – along with a new version of its heavy-lift Long March 5 rocket on Tuesday, its space agency said.

The Long March 5B rocket was launched into low-Earth orbit from the Wenchang Satellite Launch Centre on Hainan Island in the country’s south.

The launch marks a significant step forward for China’s two big space exploration ambitions – building a space station and a mission to Mars.

A modified version of China’s most powerful rocket, the Long March 5B is 53.7 metres (176 feet) tall. It will carry the next-generation crew capsule prototype designed to replace the Shenzhou spacecraft, to transport astronauts to its planned space station in low-Earth orbit.

China aims to launch the core module of that space station designed for three crew members, the Tianhe, in 2021. Beijing has been planning to build its own space station for decades as an alternative to the International Space Station, from which China has been excluded by the United States over security concerns.
China’s space station project has been delayed by problems with its heavy-lift rockets. Photo: Xinhua
China’s space station project has been delayed by problems with its heavy-lift rockets. Photo: Xinhua
The prototype capsule has a different configuration to Shenzhou’s and it will be able to launch and land with three astronauts on board as well as up to 500kg of cargo, according to state news agency Xinhua. That will mean it can be used to transport research specimens and hardware from the space station back to Earth.

While the Shenzhou can ferry three astronauts, the new capsule design will be able to accommodate up to six crew members and, unlike the Shenzhou, it will be capable of carrying them to the moon, according to Chinese media reports.

Its systems, performance in orbit and parachute deployment are among the areas that will be put to the test during the launch.

Why China’s next Long March 5 rocket mission will be about restoring national pride

14 Dec 2019

The long-anticipated space station project has been delayed by problems in the development of heavy-lift rockets to carry the modules. In 2017, an oxygen supply problem caused the failure of the second Long March 5 launch, and it plunged into the Pacific Ocean shortly after take-off. But in December it successfully carried a Shijian-20 satellite into orbit, while the liquid oxygen-liquid hydrogen engines used in both the Long March 5 and 5B rockets passed testing in January.

China’s other space ambitions include a Mars probe, and landing astronauts on the moon within the next decade. For the Mars mission, the unmanned orbiter and rover Tianwen-1 will be launched by the Long March 5 and it is expected to take up to seven months for the probe to reach the red planet. China would be the third country to do so – after the United States and the Soviet Union.

Zhang Kejian, head of the China National Space Administration, said China was on track to launch the mission this year, with July the likely launch date.

Source: SCMP

05/02/2019

Chinese navy veteran warns training, not hardware is key to military preparedness

  • As China expands its military might a retired naval officer points out that size is not everything in modern warfare
  • ‘It is the people who use these weapons that count’
The cloud was low and the sky was murky and overcast. “The cloud was barely 200 to 300 metres above ground and the jets immediately disappeared into the cloud after take-off,” Wang said.

“In China, [our military planes] would not have taken off [for training] if the cloud was lower than 400 metres above ground,” he explained.

“Such conditions are dangerous [for military aircraft to take off] but they were able to carry on training despite the weather.”

As China expands its military might with new aircraft carriers, advanced fighter jets and other world-class weaponry, questions have been raised about whether the People’s Liberation Army can compete with other advanced forces.

Wang, now a naval armament expert, pointed out that size was only one determining factor in modern warfare, and hardware could only answer part of the question as China raced to catch up with leading powers like the US and its top allies, including Japan“It is the people who use these weapons that count, and that essentially boils down to our level of training.

“Some people hold the view that our military planes are more advanced than others. But if we look at the level of training of our forces … We are not at the same level [as others] yet.”

Antony Wong Dong, a military expert based in Macau who has spent years studying the PLA, agreed with Wang’s assessment.

Although the PLA – which has not fought a major war since the Korean war – has made great strides in improving training for its rank and file in past decades, Wong said there was much room for improvement to raise its “preparedness”.

That was in fact the message from President Xi Jinping in December in a speech reminding the top brass that strengthening training and preparation for war would be the top priorities for the PLA in 2019.

Naha, in Japan’s Okinawa prefecture, is home to the 9th Air Wing, which was set up three years ago with 40 F-15 fighter jets. It was a time of growing assertiveness by China in the East China Sea, including over the contested Diaoyu Islands, which are administered by Tokyo but also claimed by Beijing and Taipei.

According to the Joint Staff of the Japanese defence ministry, in the 2017 fiscal year, which started on April 1, there were 500 scrambles by Japan’s Air Self-Defence Force to intercept Chinese military aircraft flying over the region, compared with 851 scrambles in 2016.

But in the first three quarters of the 2018 fiscal year, the number of scrambles reached 476, as Xi pushed the PLA to conduct more training, including exercises further from home.

And, as China starts testing its first home-made aircraft carrier, Tokyo announced in December that it would convert its helicopter carrier, the destroyer Izumo, into an aircraft carrier capable of launching American F-35B fighter jets.

Against such a background, Wang said China needed to reflect deeply on its overall military strength in addition to investing in cutting-edge weaponry.

This was the reason for his heavy heart at Naha Airport, as he watched the extent of Japanese military training.

“On that day it was not just the F-15s taking off [at Naha], but also Ospreys and Sikorsky Seahawks, and the training went on non-stop the whole day,” Wang said.

“It immediately came to my mind that we should not look down upon the Japanese forces. We must bear in mind that the level of training reflects your level of combat preparedness.

“Our fleet of warships and military planes far outnumber the Japanese forces, even by the number of more advanced generations of fighter jets … but in real combat, the size of the battlefield is limited, whether it is at sea or in the sky.

“You cannot deploy everything you have. And when both sides deploy the same resources into the battlefield, we must not be blindly [optimistic] about our chance of winning.”

The rapid development of new hardware could also pose challenges for training Chinese troops, especially in helping them master the skills necessary to use and understand the new weapons.

“We are still exploring. It is not that we are slack. [These new weapons] are just too advanced,” Wang said.

“Like [the stealth fighter jet] J-20… or [carrier-based fighter jet] J-15, we initially didn’t know how to make the best use of them in different circumstances.

“We only recently mastered how to take off and land [J-15s] at night. It is not certain if we are ready to undertake evening flight missions of these aircraft when they are loaded with heavy missiles,” he said.

Military expert Wong said the PLA had yet to resolve many issues, including pairing up its J-15 fighter jets and its aircraft carriers.

“To what extent can PLA troops and these weapons work seamlessly in executing tactics?” Wong said.

“From what we saw on the news, [I would say that] there are still gaps in the quality and quantity of weapons that [our carrier-based aircraft] can actually carry.”

Source: SCMP

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