In fact, the reason why Galaxy Technology wants to develop high-thrust rocket engines is not for spacecraft.
The mass projector's projection spacecraft does not require a high-thrust rocket engine, because the projection spacecraft can directly enter a low-Earth orbit of more than 150 kilometers by virtue of the mass projection system.
In this way, a high specific impulse hydrogen-oxygen engine is more suitable for a projection spacecraft.
Boom boom hiss
[Specific impulse: 471 seconds]
Looking at the numbers on the instrument, Huang Junjie was quite satisfied. The specific impulse on the ground could be 471 seconds, which meant that the vacuum specific impulse could be around 500 seconds.
Likewise, the thrust of 547 tons is not small.
As we all know, as a powerful aerospace nation, the F1 rocket engine manufactured by their Rocketdyne company (five F1s were used on the Saturn V) has an average sea level thrust of approximately 691 tons, making it the single largest thrust engine in the world.
Combustion chamber liquid rocket engine.
However, as a liquid rocket engine, the F1 rocket engine is slightly inferior to Mao Xiong's rd-170 engine.
Moreover, during the launch of the Atlas 5 launch vehicle, Milijia still needs to use Mao Xiong’s rd-180 engine to provide power output.
From this point of view, Mao Xiong’s rocket engine technology is indeed leading the way.
The rd-180 engine is actually a model of the rd-170 series engines. The rd-170 series engines are designed in multiple versions, with thrust ranging from 190 tons to 1,000 tons.
The vacuum thrust of the rd-180 engine is 423.4 tons. The diameter of this class of engine is approximately 3.15 meters, the length is 3.56 meters, and the weight is more than 5.0 tons.
Pratt & Whitney and the Power Machinery Research and Production Consortium cooperated to develop the rd-180 engine. However, all the work of producing the rd-180 engine was completed in Maoxiong, so Milijia needed to import the engine from Maoxiong.
Milijia's Atlas 5 launch vehicle uses the RD-180 engine as the first stage power engine, and the second stage power engine is the Centaur rocket.
The Atlas 5 launch vehicle has a length of 58.3 meters, a diameter of 3.0 meters, a weight of nearly 550 tons, and a payload of several tons. It can be used to launch various satellite detectors, and will continue to be modified and upgraded in the future.
room.
In 1997, the two parties signed an agreement, and the Power Machinery Research and Production Consortium provided 101 rd-180 rocket engines to Mi Lijia. The supply work continued until 2018 according to the plan at the time.
In fact, Milijia does not plan to continue to use Maoxiong's rd180 engine, and even hopes to get rid of its dependence on the rd180 engine in 2019.
However, since Milijia’s own replacement model has not yet been put into use, the target time point for getting rid of dependence has to be postponed to 2022.
Maoxiong’s power machinery research and production consortium continues to deliver rd180 engines to Mi Lijia.
In fact, Mao Xiong has another rocket engine model that is also exported to MiLijia, namely the rd1 engine.
Therefore, the relationship between Mao Xiong and Mi Li's family is really messed up and messed up.
Compare the specific impulse and thrust of the three engines.
Galaxy Technology’s has a specific impulse of 471 seconds and a thrust of 547 tons.
Mi Lijia's F1 has a specific impulse of 264 seconds and a thrust of 691 tons.
Mao Xiong's rd-180 has a specific impulse of 337 seconds and a thrust of 423 tons.
The specific impulse of the Mao Xiong rd-173 is 337 thrust and 847 tons.
From the perspective of specific impulse, Galaxy Technology's hydrogen-oxygen engine is first, Maoxiong's RD series is second, and Mi Lijia's F1 is third.
In terms of thrust, Maoxiong’s rd-173 is first, Mi Lijia’s F1 is second, Galaxy Technology’s hydrogen-oxygen engine is third, and Maoxiong’s rd-180 is fourth.
As for the rocket engines that Mi Lijia and Mao Xiong are still developing, and the rocket engine that Dongtang claims to have a thrust of 500 tons, these have not been put into use.
Tongxing, if you use this rocket engine, how far can you launch a 1-ton object? I mean inside the Blue Star. Huang Haojie asked.
When Qin Tongxing heard this, he immediately knew what Huang Junjie had planned. He clicked on the holographic projection and quickly calculated.
With the cooperation of cloud supercomputing, a rough result came out.
If high-density submetallic oxygen and submetallic hydrogen are used as propellants, the entire rocket system will be about 85 tons, which can launch about 1 ton of material to a distance of 16,000 to 17,000 kilometers.
What is the speed of each stage? Huang Junjie then asked.
In the atmospheric launch stage, the speed is about 2 kilometers per second; in the low-Earth orbit stage, the speed is about 6 kilometers per second; in the reentry stage, the speed is about 7 kilometers per second. Qin Tongxing gave the data.
The rocket has an overall weight of 85 tons, a payload of 1 ton, and a range of 16,000 to 17,000 kilometers. The first stage speed is 2 kilometers per second, the middle stage speed is 6 kilometers per second, and the tail stage speed is 7 kilometers per second. Huang Haojie recorded the data as he spoke.
.
This thing is definitely a huge deterrent when it is manufactured. The 1 ton payload, loaded with mushrooms, is a perfect strategic kick.
However, Galaxy Technology does not have mushroom eggs, so this item can only be used by Dongtang.
After Huang Haojie packed up the relevant information, he left the Hydrogen Oxygen Engine Research Institute directly.
Mr. Huang, you are well, Fang Dongliang greeted respectfully.
After all, Huang Junjie's current identity is different from the past, and he is at the level of a big gangster leader, not to mention that he is still half a member of his own family, so Fang Dongliang cannot help but be careless.
Take a seat!
Thank you Mr. Huang!
Fang Dongliang sat on the sofa. After the secretary poured Pu'er tea for the two of them, he quietly left the living room.
I came to the housing team today mainly for a cooperation project. You can take this back to the superiors and let them see if they are interested in cooperation.
Huang Junjie handed a special memory to Fang Dongliang.
As for the content, Huang Junjie did not tell Fang Dongliang. After all, this thing is quite sensitive. If you can reduce the number of people who know about it, try to reduce it to as few people as possible.
Seeing Huang Junjie solemnly hand over the memory to him, Fang Dongliang took it solemnly without asking any questions.
After drinking a cup of tea, Fang Dongliang quickly said goodbye and left.
The next night.
It's still the same living room, the same two people Huang Junjie and Fang Dongliang.
This is the letter above.
Huang Junjie took it and opened the envelope. There were only two simple words in it: "agree".
What about memory?
Fang Dongliang quickly handed him the memory.
The above choice did not surprise Huang Haojie. This is a win-win situation. There is no reason for the above to reject this cooperation.
Although Galaxy Technology's hydrogen-oxygen engine uses hydrogen and oxygen as propellant, in fact Galaxy Technology's technology is more like a solid rocket motor.
Mainly the high density of submetallic oxygen and submetallic hydrogen has led to the reduction of fuel and oxidant storage tanks.
Compared with liquid hydrogen, the submetallic hydrogen tank is only about one-seventh of the liquid hydrogen tank; while the submetallic oxygen tank is about three-fifths of the liquid oxygen tank.
In addition, there is no need to withstand high pressure and maintain low temperatures, and can be stored at room temperature and pressure for a long time.
This has reduced the engineering difficulty of the rocket by an unknown amount. The impact of the reduced difficulty is a reduction in costs.
As long as they are not blind, no one will refuse to cooperate.
Huang Junjie's conditions were not excessive, allowing the space agency to transfer part of the second-kicking technology to Galaxy Technology.
Huang Junjie inserted the memory into the computer, and then asked An Zhong to check it to confirm that there was no problem.
There is nothing wrong with the item, so I accepted it.
Then I won't disturb Mr. Huang's rest.
Fang Dongliang left the villa after completing his task.