China's Space Program News Thread
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Can you show the source of the "Chinese study into Mars aircraft"?
To be honest, there is no way China would put an aircraft on Mars in the current Tianwen-1 or the coming Sample return mission in 2028, NOT because domestic tech is inadequate, but simply because the engineering gain of aircraft does not justify the extra payload demand. A Mars helicopter is the least technical challenge compared to everything else done by Tianwen-1.
LOL I can't even. On top of the absolutely hilarious notion, what's even more funny (and sad) is how insecure the US military is making themselves out to be with this, which is not a good look for them no matter the type of audience they're harping at.
At this point China might as well go : "Sure, why not?"
Let's have space robo arm wrestling!
The US and others are so utterly ridiculous in critisicing China, they now run out of ideas. But will invent more...China is helped by aliens, becuase China and its people will never be that clever, or inventive!!!
Just don't listen to those bullshits! What they said were totally lacked credibility, it is a means to smear China whatever and however they can!
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escobar
Brigadier
Maybe i fail to understand but what is the meaning of this part
胜利的欣喜之外，天问一号探测器研制团队非常客观地看待这次成功。航天科技集团五院天问一号探测器进入舱总体主任设计师董捷曾登上青年演说家舞台，谈及中美火星探测技术对比。他说了八个字：正视差距，自主创新。
董捷举例，在火星方案研制初期，我国也开展了搭载火星飞机的论证。团队联合国内有实力的高校开展了对各种机型（包括固定翼、旋翼）的分析，最后得到的结论是由于火星大气密度过低，基于现有的国内技术水平，采用旋翼难以实现在火星表面起飞，其它翼型也存在种种不足。
“看到别人的成功，也使我们清醒地认识到技术上存在的差距，更激发了我们不断前进、自主创新的动力。”董捷说。
There is no space in Tianwen-1's capsule to staff anything like an aircraft. That is a limitation. "Ingenuity" is 1.8kg, but 0.49 meter high and 1.2 meter in diameter. From the looks, the rotors are not fold-able, together with the legs, it is just too big to put in the capsule with Zhurong.
Making something even smaller than "Ingenuity" is probably a technology level that nobody including NASA can do today. If there is enough room in the Tianwen's capsule, maybe China can do too.
Besides, it was the beginning of the Mars mission study as early as 2009 or before. At that time it is likely that China did not have the technology which NASA has in 2020. Dong Jie (董捷) was only recalling an early story more than 10 years ago, nothing about today's technology level. It is like the recent TV documentary (2020) about the difficulties in the first SSN development (1970s). In terms of PR, Chinese media tends to "exaggerate" the difficulties to emphasize the achievement.
One more thing to note is that Dong Jie is leader of the capsule design. He had a dimension and maximum payload constraint in hand. If he told to the aircraft designing team these parameters, he certainly will get a "noway" as an answer. Without seeing the research paper I can not be sure of his words "limited technology". It could be just that the current technology does not allow an aircraft smaller enough to be fit in his capsule. When system design and subsystem design have a debate, one should not take any one side's word for granted because all parties are making demand on others (kind of pushing responsibility to others). Not saying they do it on purpose, but it always look that way. The resent argument between the system design and engine team regarding the failure of CZ-7G Y1 is a good example.
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Two things I want to note/ask (because I couldn't find relevant information)
1. Do the Lander have any scientific instruments? It seems like a judicious use of space to put some scientific instruments on the lander (even though it's stationary). The ground right under and around the lander is Martian too (much Martian dirt would've been displaced on landing - which is great).
2. Do the Zhurong rover have twin sources of power - RTG and Solar Power (Just like Yutu)?
I understand that the rover was the product of a decade long development but its a must that China explores the enhanced application of RTG (Just like US).
1. Do the Lander have any scientific instruments? It seems like a judicious use of space to put some scientific instruments on the lander (even though it's stationary). The ground right under and around the lander is Martian too (much Martian dirt would've been displaced on landing - which is great).
2. Do the Zhurong rover have twin sources of power - RTG and Solar Power (Just like Yutu)?
I understand that the rover was the product of a decade long development but its a must that China explores the enhanced application of RTG (Just like US).
The US will just have to sanction those aliens ROFL
Quickie
Colonel
The only disadvantage of the RTG power source is its low output. The Perseverance's RTG is only rated at 110W at launch (declining slightly per year) and would have to rely on its batteries anytime the scientific instruments require more power.
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