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The Prime Minister only said one sentence in Geneva about whether China would send troops to Vietnam, and it was neither affirmative nor negative, but the degree of deterrence was full at once.
If North Korea becomes a second Vietnam, that will be the biggest headache.Devouring the former colonies of France is an established national policy of the top US officials. It is also an established national policy not to engage in direct confrontation with China.
……
When Tang Hua and Qian Xuesen picked up two Hongqi-4 launch vehicles and 16 verification bombs at the station, the concentrated nitric acid and aniline-sugar alcohol fuels were sent to the technical support area, and the first TK-1 sounding rocket was pulled out for refueling fuel.
Aniline-sugar alcohol fuels are highly toxic.Concentrated nitric acid is more dangerous than fuel. It is not only highly toxic, but also corrosive and strong oxidizing. It must be filled in a special workshop by personnel wearing full protective clothing.
1954 8 Month 28 Day.
In the morning, the first and second TK-1 sounding rockets were transported to the launch position.
After igniting and launching, the missile spewed out a long orange-red tail flame, rising vertically, and accelerating to the extent visible to the naked eye.
Qian Xuesen and Tang Hua's family watched the launch of the sounding rocket from a distance by Wuliangsuhai Lake, and two nearby herdsmen and 170 sheep watched the launch together.
Although the TK-1 is only more than 4 meter longer than the Hongqi-1L missile, the energy of the liquid propellant is indeed powerful, and it is simply the launch site of a small carrier rocket. The length of the tail flame of TK-1 is about 100 meters. When it just took off, you can see a long fire dragon. When you look up at it after ascending to high altitude, it is just a bright spot. Finally, the bright spot disappears. The rocket will continue to fly under the action of inertia. Continue to rise for a while.At the highest point, the payload separates from the rocket body, the payload spreads some chaff, and then opens the main parachute to fall, and the rocket body also opens its own parachute to fall.
After waiting for more than ten minutes, two parachutes, one large and one small, appeared in everyone's view.Descending from an altitude of [-] meters, the parachute is still open, but you have to wait slowly.
“1号遥测站测高：30345米。2号遥测站测高：30420米。3号遥测站测高：30310米。4号遥测站测高：30360米。”钱学森手中的对讲机传出试验场指挥中心汇报的数据。
"Very good. Second ready to launch."
……
The second TK-1 sounding rocket was carved out of the same mold as the first one, and it flew to an altitude of about 30 kilometers and parachuted down.
"Comrades in the command center, please do a good job of recovering the load carefully. The test launch in the afternoon will start at 16:15, and everyone should complete the recovery work before 30:[-]."
"I removed all the loads from the first rocket of TK-2," Qian Xuesen turned to Tang Hua and said, "What barometer, atmospheric composition measuring instrument, radiation measuring instrument, and chaff were also removed, because the radar at the missile test base In fact, the radar signal of the rocket body can be captured."
"Lose 100 kilograms?" Tang Hua asked.
"101.2 kilograms. I want to see if I can go into space."
Tang Hua: "The Karman line is at a height of 100 kilometers."
Qian Xuesen: "After removing the load, it will definitely exceed 85 kilometers. We don't have accurate data on the atmospheric conditions of the thermosphere at 85 to 100 kilometers, so it is not clear how high it will eventually hit. I estimate it is 97 to 100 kilometers. .”
The TK-2 sounding rocket was thus transformed into a record rocket.Because it takes time to disassemble the equipment and recalibrate the center of gravity data, the second arrow of the TK-2 sounding rocket was moved forward to 4 pm.
……
"Old Qian, do you want to set a record as soon as possible?" Tang Hua asked, "If it succeeds, it will be the first time for a Chinese to launch a rocket into space."
According to the definition of the U.S. Air Force, an astronaut is a person who has flown at an altitude of 80 kilometers or more.However, according to the world's prevailing standards, the Karman line at an altitude of 100 kilometers is generally regarded as the boundary between outer space and the earth's atmosphere.
Qian Xuesen: "...Yes."
Tang Hua: "If you want to set a flight altitude record, I have a suggestion. Don't launch the TK-2 tonight, but at noon tomorrow. At that time, the sun is directly shining, the temperature of the atmosphere is high, the density is low, and the air resistance is slightly lower."
Qian Xuesen: "The plan works. Go back and change the rocket."
In the warehouse, the parachutes of the first and second stages of the TK-2 sounding rocket were removed.After the rocket has been used once, it cannot be recycled and reused. It just needs to be smashed, and the weight of the parachute can be reduced by two or three kilograms.
Tang Hua also removed half of the fuel of the attitude control rocket controlled by the inertial gyro.Judging from the previous two tests, the flight trajectory of the rocket is very stable, and generally the fuel for attitude correction cannot be used up.
……
February 8, noon.
TK-2 special modification on the launch site.
"I think there is another problem," Qian Xuesen said, "It may be difficult to predict where the head shell of the sounding rocket will float after opening the parachute."
The main reason is that the wind direction at places above 70 kilometers has not been studied.This rocket can hit 100 kilometers when it is optimistic, and the flow direction of the thermosphere at 85 kilometers to 100 kilometers may be different from the bottom air.
"Everyone in the launch base just drives around to look for it," Tang Hua said, "It's just a 30x30 km possible fall zone."
At 12:2 noon, the TK-10.5 on the launch pad spewed out a group of intense fireworks, and the [-]-meter-long rocket rose slowly.
The herdsmen of Urad Front Banner and Urad Middle Banner have become accustomed to the sight of a flame bursting out from the depths of the grassland.The herdsmen's unchanging lifestyle and unchanging scenery and things for hundreds of years seem to have completely changed since two years ago.Is the thing that rises to the sky dragging the tongue of flames an artifact of the Buddha, or the god of the land meeting in the sky?
100 kilometers east by north of the Wuliangsuhai test site is the Baiyun Obo mining area, and 150 kilometers east by south is Baotou City.A large number of steel builders and railway builders who came here a few months ago can also overlook the movement of the western grassland in the past two days.They may not be able to see clearly when the Hongqi-1, 2, and 4 missiles are launched, but they can clearly see the engine flames and wakes of the sounding rockets.
National defense secrets, don't ask too much.This is not the time for everyone to have a camera.It's enough to feast your eyes.
"The rocket flies to [-] meters."
Qian Xuesen asked the base command center to report the latest data on the height of the rocket at regular intervals.
"The first stage fell off. The rocket flew to [-] meters."
"The rocket flew to [-] meters." "The rocket flew to [-] meters."
……
"The second-stage engine shut down. The shutdown speed is 880 meters per second." "The rocket flew to 7 meters."
After the engine stops, the rocket continues to rise by inertia until all kinetic energy is converted into potential energy.
7 meters, 70 kilometers.It has exceeded the design flight altitude of TK-1.Qian Xuesen's lips moved slightly, and he calculated a result in his mind, "If we estimate the parameters of the thermosphere correctly, we will finally rise to an altitude of at least 101 kilometers."
"The rocket flew to [-] meters." "The rocket flew to [-] meters."
……
"The rocket flew to 10 meters!!"
Qian Xuesen: "Give me the telemetry data recorded by the four radar stations on the rocket's final ascent to the highest point."
“1号遥测站测高：100050米。2号遥测站测高：101350米。3号遥测站测高：101200米。4号遥测站测高：101850米。”
Tang Hua: "It's done. The four data points are all over 100 kilometers. Lao Qian, several generals from the Rocket Center are here to say a few words."
"...This TK rocket was dismantled by us and nothing happened. The quality is quite good."
"I mean say something inspiring."
Qian Xuesen: ...
After coughing lightly, Qian Xuesen walked in front of everyone.
"Today is a memorable day. We almost delayed the time when the Chinese explored space for the first time."
"We invented gunpowder, and we also invented rockets. Hundreds of years ago during the Hongwu period of the Ming Dynasty, there was an unknown Wanhu official. He held two big kites and sat on a flying car with 47 rockets tied to it. He tried to use the energy of a rocket to fly into the sky. Of course he failed. And unfortunately, this person is not recorded in our history books, only the travel notes of a foreigner recorded this matter."