But these two are popular among the 90% Chinese I was talking about.
I have never heard anyone having problem with them.
China's Space Program News Thread
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I have never heard anyone having problem with them.
NWPU tested a combined cycle SCRAM engine on July 4th.
其成功发射在国际首次验证了煤油燃料火箭冲压组合循环发动机火箭/亚燃、亚燃、超燃、火箭/超燃的多模态平稳过渡和宽域综合能力，突破了热力喉道调节、超宽包线高效燃烧组织等关键技术，飞行试验圆满成功。
The engine uses kerosene as fuel. It went through mode transition from Rocket (boosted) RAM to RAM (booster seperated) to SCRAM to rocket (assisted) SCRAM.
It is worth to note that one of the institutes besides NWPU in the project is 北京动力机械研究所/Beijing Power Machinery Institute (BPMI) which proposed TRRE in a paper in 2017.
The TRRE engine uses turbine for horizontal take off. Either BPMI is working on two different combined cycle engines or this NWPU test is one of the tests to verify the high mach flight of TRRE.
The reason that I suspect this test may be related to TRRE is that final stage of the test is in rocket/scram mode. Since the booster has been dropped, the only rocket involved must be inside or part of the engine. And the rocket can not be large because it is only involved in the highest speed range of the engine. This flight mode is described in the paper.
The paper also laid out the road-map as "building flyable engineering prototype before 2025". Since the 0 to 1.8M regime is easy and likely already tested, successfully testing the ram and scram regime in 2022 seems to fit very well with the road-map.
BTW, the paper is titled "Analysis of Key Technologies and Propulsion Performance Research of TRRE Engine".
其成功发射在国际首次验证了煤油燃料火箭冲压组合循环发动机火箭/亚燃、亚燃、超燃、火箭/超燃的多模态平稳过渡和宽域综合能力，突破了热力喉道调节、超宽包线高效燃烧组织等关键技术，飞行试验圆满成功。
The engine uses kerosene as fuel. It went through mode transition from Rocket (boosted) RAM to RAM (booster seperated) to SCRAM to rocket (assisted) SCRAM.
It is worth to note that one of the institutes besides NWPU in the project is 北京动力机械研究所/Beijing Power Machinery Institute (BPMI) which proposed TRRE in a paper in 2017.
The TRRE engine uses turbine for horizontal take off. Either BPMI is working on two different combined cycle engines or this NWPU test is one of the tests to verify the high mach flight of TRRE.
The reason that I suspect this test may be related to TRRE is that final stage of the test is in rocket/scram mode. Since the booster has been dropped, the only rocket involved must be inside or part of the engine. And the rocket can not be large because it is only involved in the highest speed range of the engine. This flight mode is described in the paper.
The paper also laid out the road-map as "building flyable engineering prototype before 2025". Since the 0 to 1.8M regime is easy and likely already tested, successfully testing the ram and scram regime in 2022 seems to fit very well with the road-map.
BTW, the paper is titled "Analysis of Key Technologies and Propulsion Performance Research of TRRE Engine".
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AssassinsMace
Lieutenant General
So they're pointing to China's ASAT test as a sign of China militarizing space. And the West had slaves...
It's funny how after how the US brags about privatizing space exploration is the next big thing, I still see them say China is clearly going to be make the most inroads in space exploration in the future.
by78
General
Apologies for the Google translation, but I'm pressed for time.
According to the latest news from the China Manned Space Office, the space debris detection payload carried by the Tianzhou-3 cargo spacecraft has acquired thousands of images as of March this year. Key technologies such as on-orbit detection and identification algorithms and processing of space dim and weak targets, and rapid on-orbit processing of massive data have built a space-ground integrated data application system, realized space-based short-arc orbit determination and correlation of space debris, and verified the full-link space-based data application system. Space debris detection, identification, orbit determination, correlation and applications. At present, the payload has been running stably in orbit for more than 9 months.
According to the latest news from the China Manned Space Office, the space debris detection payload carried by the Tianzhou-3 cargo spacecraft has acquired thousands of images as of March this year. Key technologies such as on-orbit detection and identification algorithms and processing of space dim and weak targets, and rapid on-orbit processing of massive data have built a space-ground integrated data application system, realized space-based short-arc orbit determination and correlation of space debris, and verified the full-link space-based data application system. Space debris detection, identification, orbit determination, correlation and applications. At present, the payload has been running stably in orbit for more than 9 months.
China starts constructing a radar array in Chongqing to detect and monitor near-earth asteroids as far as 150 million kms away.
The array will have 20 some radars with antenna diameters between 25 to 30 meters. The construction will complete in 3 phases. In the first phase, 4 radars will be built to verify the radar architecture and system feasibility. 2 of the 4 radars have already been installed and will start trials in Sept.
I posted the news about China's near-earth asteroids defense a while ago: China's Space Program News Thread
In addition to spotting "debris", this should be very useful for spotting dim/stealth military sats. Space based situational awareness is huge and if combined with ground-based radar seems very powerful.
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