中国火箭过去使用的是偏二甲肼剧毒燃料。中国没有完全掌握液氧燃料技术,一定要偷美国的技术的

第三个话题是
中国火箭过去使用的是偏二甲肼剧毒燃料
中国没有完全掌握液氧燃料技术,一定要偷美国的技术的

焦点问题就是火箭的燃料

2023年3月末,中国的长征四号丙运载火箭,把遥感三十四号04星送上天。这次发射主要想和已经在轨的01星、02星和03星,对中国城市规划和农作物估产等形成观测网络。
长征五号前,中国的载人火箭采用的都是偏二甲肼剧毒燃料作为火箭推进剂。前苏联液体火箭发动机暨推进剂专家曾断言:使用剧毒燃料等于抱着“老虎睡觉”。
长征五号前,也就是说刚刚在2023年3月末发射的长征四号火箭
使用的燃料,依然是偏二甲肼剧毒燃料

这个之前火箭军的传闻中
有人说盗窃火箭燃料烧锅炉
中我说了,这种剧毒燃料
没法烧锅炉,也没法倒卖

长征五号火箭使用的是液氧煤油燃料
其中长征五号遥二发射失败
长征五号B火箭残骸坠入印度洋
当时由于火箭残骸巨大
进入地球地点存在巨大的不确定性
当时2021年5月7日曾经成为全球关注的焦点
造成了一定的恐慌
这都反映了
中国大推力火箭技术并不成熟。

2023年7月,蓝箭航天号称
朱雀二号遥二火箭成功入轨
号称全球首先使用了液氧甲烷的燃料

其实,老中人就是自己逗自己玩
他们高兴就好,他们自己相信就好

首先
运载能力只有1吨多
而长征四号的运载能力2吨左右
长征五号的运载能力是14吨
但是技术很不成熟
长征四号是使用偏二甲肼这种剧毒火箭燃料
长征五号是使用液氧煤油作为火箭燃料的
事实证明,中国对液氧燃料的火箭技术
仍然没有完全掌握

德尔塔4号重型运载火箭的运载能力是14吨
而且实现了多次成功发射
成功回收
德尔塔4号使用的是液氧煤油燃料

猎鹰重型运载火箭的运载能力达到了26吨
但是技术还不成熟。
猎鹰重型运载火箭使用的是液氧甲烷燃料

发射吨位的每增加1吨,技术难度要增加很多

蓝箭航天号称超越
马斯克SpaceX
率先实现了液氧甲烷燃料的发射
但是
却发射了1吨这样可笑的重量

实际
中国的技术实力
只掌握了2吨左右的成熟发射能力
10吨以上的长征五号,技术根本就不成熟
更不用说回收技术了

连长征五号那么大的残骸
坠入地球的地点都无法控制
还谈什么回收

至于20吨以上火箭的发射能力
中国更是连门都没摸到
成立
蓝箭航天
这么一个民营包装却能指挥国防事业单位的公司的
目的
就是要偷马斯克的技术
要偷美国的技术。


说一下
当年钱学森为什么要坚持使用
偏二甲肼这种剧毒火箭燃料
理由是什么
无法是这么几种
第一是中国的技术不过关
如果使用液氧技术,
可能中国的火箭或者导弹
没有办法那么快搞出来
第二就是
保密考虑
由于有剧毒,即便发射失败
也给后来的处理造成障碍

我们看一下
蓝箭航天的宣传话语,就能了解了

朱雀三号火箭是中国首款不锈钢液体运载火箭,其贮箱结构采用高强度不锈钢材料,在材料选型、结构形式、焊接工艺与生产设备方面均具有高度的原创性。不锈钢箭体结构可以大幅降低火箭的制造成本,缩短生产周期,耐高温的性能在火箭多次返回、重复使用上具备明显优势。另外,基于液氧甲烷成本低廉,甲烷发动机不积碳、易维护的特质和可全生命周期监测的属性,朱雀三号火箭一级发动机在火箭回收后可不下箭检查,加注完成即可再次飞行,实现真正的航班化运营,发射成本相较一次性使用火箭可降低80-90%。

这里面提到
火箭一级发动机在火箭回收后可不下箭检查,加注完成即可再次飞行
如果
使用
偏二甲肼这种剧毒火箭燃料
显然是无法完成
加注完成即可再次飞行
这种操作的
也就说是
中国长期使用的偏二甲肼作为火箭燃料
而液氧作为火箭燃料的技术
中国仍然没有熟练掌握

英文翻译

In the past, Chinese rockets used highly toxic fuel called dimethylhydrazine. China has not fully mastered liquid oxygen fuel technology and must steal American technology.

The third topic is
Chinese rockets used to use highly toxic unimmonium dimethylhydrazine fuel
China has not fully mastered liquid oxygen fuel technology and must steal American technology.

The focus is rocket fuel

At the end of March 2023, China’s Long March 4C carrier rocket launched the Yaogan 34-04 satellite into the sky. This launch is mainly intended to work with the 01, 02 and 03 satellites already in orbit to form an observation network for China’s urban planning and crop yield estimation.
Before the Long March 5, China’s manned rockets used highly toxic unbiased fuel as rocket propellant. A former Soviet liquid rocket engine and propellant expert once asserted that using highly toxic fuel is equivalent to “sleeping with a tiger in your arms.”
Before Long March 5, that is to say, the Long March 4 rocket was just launched at the end of March 2023
The fuel used is still the highly toxic fuel uniminated dimethylhydrazine

This was in the previous rumors about the Rocket Army
Some people say that rocket fuel was stolen to burn the boiler
As I said, this highly toxic fuel
Can’t burn the boiler, can’t resell it

The Long March 5 rocket uses liquid oxygen kerosene fuel
Among them, the launch of Long March 5 Yao-2 failed.
Long March 5B rocket wreckage crashes into Indian Ocean
At that time, due to the huge debris of the rocket,
There is huge uncertainty about where to enter the Earth
At that time, May 7, 2021 once became the focus of global attention.
Caused a certain amount of panic
This all reflects
China’s high-thrust rocket technology is not mature.

In July 2023, Blue Arrow Aerospace announced that
Zhuque-2 Yao-2 rocket successfully entered orbit
Claimed to be the first in the world to use liquid oxygen methane as fuel

In fact, the old and middle-aged people just make fun of themselves
As long as they are happy, as long as they believe it

first
Carrying capacity is just over 1 ton
The Long March 4 has a carrying capacity of about 2 tons.
The carrying capacity of the Long March 5 is 14 tons
But the technology is very immature
The Long March 4 uses unisoned dimethylhydrazine, a highly toxic rocket fuel
Long March 5 uses liquid oxygen kerosene as rocket fuel
Facts have proved that China’s rocket technology with liquid oxygen fuel
Still not fully grasped

The Delta 4 heavy-lift rocket has a carrying capacity of 14 tons
and achieved multiple successful launches
Successful recycling
Delta 4 uses liquid oxygen kerosene fuel

The Falcon Heavy launch vehicle has a carrying capacity of 26 tons
But the technology is not yet mature.
Falcon Heavy launch vehicle uses liquid oxygen methane fuel

For every 1 ton increase in launch tonnage, the technical difficulty will increase a lot.

Blue Arrow Aerospace claims to be beyond
MuskSpaceX
Be the first to realize the launch of liquid oxygen methane fuel
but
But it launched a ridiculous weight of 1 ton

actual
China’s technological strength
Only has a mature launch capability of about 2 tons
The technology of Long March 5, which is more than 10 tons, is not mature at all.
Not to mention recycling technology

The wreckage is as big as the Long March 5
The location of the crash into the earth cannot be controlled.
What about recycling?

As for the launch capacity of rockets above 20 tons
China has not even touched the door.
established
Blue Arrow Aerospace
Such a private packaging company can command national defense institutions
Purpose
Just to steal Musk’s technology
To steal American technology.

Again
Say something
Why did Qian Xuesen insist on using it?
Trimethylhydrazine, a highly toxic rocket fuel
what is the reason
It can’t be so many kinds
The first is that China’s technology is not up to par
If liquid oxygen technology is used,
Maybe Chinese rockets or missiles
There’s no way to do it so quickly
The second is
confidentiality considerations
Because it is highly toxic, even if the launch fails
It also creates obstacles for subsequent processing.

let’s take a look
You can understand the promotional words of Blue Arrow Aerospace

The Zhuque-3 rocket is China’s first stainless steel liquid launch vehicle. Its tank structure is made of high-strength stainless steel and is highly original in terms of material selection, structural form, welding technology and production equipment. The stainless steel rocket body structure can significantly reduce the manufacturing cost of the rocket and shorten the production cycle. Its high temperature resistance has obvious advantages in the rocket’s multiple returns and reuse. In addition, due to the low cost of liquid oxygen methane, the methane engine’s non-carbon deposits, easy maintenance and full life cycle monitoring properties, the Suzaku-3 rocket’s first-stage engine can be inspected without lowering the arrow after the rocket is recovered, and can be refilled after refueling is completed. flight, achieving true flight operations, and the launch cost can be reduced by 80-90% compared with disposable rockets.

mentioned here
After the rocket is recovered, the first-stage engine can be inspected without lowering the arrow, and it can fly again after refueling is completed.
if
use
Trimethylhydrazine, a highly toxic rocket fuel
Obviously it cannot be completed
Once filling is complete, you can fly again
This kind of operation
That is to say, it is
China’s long-term use of unimmonium dimethylhydrazine as rocket fuel
The technology of liquid oxygen as rocket fuel
China still has not mastered

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