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Taiyuan, Jiuquan, and Wuliangsuhai will all be subject to the 3.4-meter limit, but Wenchang will not.
The rockets produced by the Tianjin Rocket Factory are loaded in Tianjin and shipped directly to Hainan, and enter the launch site when they land in Wenchang—you don’t care about giant rockets with a diameter of 5 meters, 6 meters, or 9 meters.
Even if a carrier rocket with a standard diameter of 3.4 meters is launched, shipping by sea has the advantages of cheap freight and low vibration.
In addition, the Hainan launch site has another advantage: after the rocket takes off, it will fly over the sea. The booster and the first-stage engine will not hit people. If the rocket crashes, the toxic propellant will not pollute a large area of land.
Of course, if it falls on an island in the Philippines or Indonesia by accident, then in addition, it is estimated that it will lose money.
……
Sanya, the first base of the Faculty of Agriculture.
A large group of people—including base staff, researchers, and nearby farmers who came to help with the work—had harvested and threshed the rice in the experimental field in two days.In the first base of Shauguping, the rice is spread out to dry every morning and collected in the evening.
In the evening, the rice is collected from Shauguping, and the total volume of the rice can be measured.Although the rice is still half-dry now, and the weight will change after it is completely dried, the yield per mu of hybrid rice is now known with the help of volume figures.
"One thousand catties per mu! 545 kilograms, one thousand and ninety catties! This is the result of not fertilizing the dead!"
Zhang Xiancheng: "The key is not the absolute quantity, it depends on the increase in yield,...the 10 mu of land in the comparison group, the old rice, it..."
Tang Hua: "Minister Deng, I think it's time to start promoting the three-line hybrid rice. Let's set up seed breeding bases in several southern provinces."
Deng Zifei squeezed Zhang Xiancheng's shoulders excitedly: "Researcher Zhang, I have to thank you on behalf of the [-] million people in the country."
Tang Hua: "By the way, there is also a second base of the Department of Agriculture in Hunan, which also studies hybrid rice, because they grow double-cropping rice, and the harvest time is about a month later than in Hainan."
……
Deng Zifei immediately confirmed the itinerary, and rushed to the Hunan base after the inspection in Hainan.Tang Hua's itinerary was temporarily revised, and he did not go to Hunan to see Yuan Longping and his rice for the time being, but returned to Beijing.
On June 1960, 6, Children's Day, a Long March-1 rocket was successfully launched at the Taiyuan Space Launch Center, sending Fengyun-2 A star into orbit.
"Fengyun-680 satellite is the world's first meteorological satellite. It operates in polar orbit 700 to [-] kilometers from the ground in space. The satellite is equipped with a visible light camera and an infrared camera, which can take pictures of the clouds above the ground and the sea, and It is transmitted by radio to the Chinese space receiving station on the ground."
"As the saying goes, standing high and seeing far, using meteorological satellites to observe clouds and make cloud maps is both accurate and timely. One satellite can replace the work of thousands of ground observation stations in the past, and provide more accurate weather forecasts for China. raw data."
"The successful launch of the Fengyun-1959 satellite is the seventh launch and the sixth success of China's Long March 7 carrier rocket. From 6 to the present, the Long March [-] carrier rocket has been launched [-] times, and a total of [-] satellites have been accurately placed into orbit. The launch success rate of the Long March [-] ranks first among similar launch vehicles in the world."
Well, the introduction to satellites is at a level that middle school students can understand.
The launch success rate of today's launch vehicles is ranked first by the Long March-1 (2% for two launches, and then production will be discontinued), and the second is the Long March-[-].
Tang Hua's early return to Beijing this time is also related to the development plan of aerospace.
……
"Vice Premier Chen, what is the attitude of the leaders of the central government towards the manned spaceflight project?"
Tang Hua first asked the chief accountant to find out.
"The chairman and the prime minister have not commented on this yet. Mr. Peng thinks it is necessary to give it a try. Vice-chairman Liu expresses his cautious opposition. Vice-chairman Lin cautiously supports it. Vice-premier Li and Deng Shuai have no comments," said the chief accountant. , "I... object."
It seems that those who are in favor of manned spaceflight and those who oppose it are evenly matched.
Li Fuchun didn't express his opinion, um, as the director of the State Planning Commission, he should feel sorry for Qian.
Tang Hua: "Manned spaceflight costs a lot. Compared with it, the direct economic benefits are not so obvious. My personal opinion is that in the past two or three years, we have postponed this in our country."
Chief Accountant: "Then get ready and tell the chairman your opinion."
……
"Chairman, Prime Minister, we just launched the Fengyun-[-] satellite, so let me start with Fengyun-[-]."
In Zhongnanhai Yi Nian Hall, Tang Hua reported the overall situation of spaceflight to the chairman and prime minister, and also talked about the manned spaceflight plan by the way.
"The Fengyun series is our meteorological satellite series. This Fengyun-[-] is an experimental meteorological satellite. However, although it is used for experiments, if it is successfully positioned in space and turned on, it can serve as a national meteorological satellite. Bureau provides information services."
“风云一号重是1050公斤，运行在700公里左右高度的极轨道，发射风云一号用的是长征-2号运载火箭。长征-2可以把1400公斤的载荷送入300公里的近地轨道，或者把1100公斤的载荷送入极轨道。”
"The Fengyun-3 meteorological satellite weighs about 2 tons. This is a really useful weather satellite. However, the Long March-3 carrier rocket cannot launch such a heavy satellite into space. We have to wait until the Long March-3.5 carrier rocket early next year. It can put 4.5 to 3-ton satellites into low-Earth orbit, or [-]-ton satellites into polar orbits."
"Fengyun-3 is followed by Fengyun-3, which is a meteorological satellite operating in a geostationary orbit, and the Long March-1.4 is not enough, because the Long March-1.5 plus the upper stage can only deliver 35800 to 3 tons of satellites. For a geostationary orbit of [-] kilometers, we have to attach two boosters to the first stage of the Long March-[-]."
"In the future, China's meteorological satellite system will include a geostationary orbiting meteorological satellite positioned above the equator at 100 degrees east longitude, and four polar orbiting meteorological satellites."
……
"The weather satellite plan will definitely be implemented," the Prime Minister said. "Indeed, the effect of the weather satellite is immediate, and weather forecasting and disaster prevention and mitigation cannot be done without it."
Tang Hua: "It's not just domestic. Polar-orbiting weather satellites are not geostationary satellites. They will move around the world. We can provide weather services for other countries. I have thought about it. For a country as big as France, buying a one-year If we offer several million dollars for satellite cloud images, they will definitely be tempted."
"Tang Hua, you can earn 500 million from the French, so why don't we ask the Americans if they can buy photos?" the chairman interjected.
Tang Hua: "Chairman, on June 6, that is, three days later, the United States will launch its first weather satellite... But I have read the information, and their weather satellites are not as good as our Fengyun-18."
……
"Let me talk about the overall plan of spaceflight again. Meteorological satellites are just one type of satellites."
"Communication satellites, now China designs satellites and the Soviet Union designs rockets, but in the future we will still launch communication satellites ourselves."
"Electronic reconnaissance satellites, the Soviet Union wants 10 to 20, and we have to manufacture and launch 4 to 5 ourselves."
"The agricultural production estimation satellite is also an infrared early warning satellite. A test satellite will be launched by the end of this year, and then 4 to 5 formal satellites will be launched."
"After the first generation of navigation satellites, starting in 1963, we will start the launch of the second generation of navigation satellite systems.
The second generation of navigation satellites is much larger than the first generation, and may require more than 20 satellites to form a preliminary network. "
"Then there are the most expensive, heaviest, and most technically difficult, high-resolution optical camera satellites, that is, spy satellites, which must wait for the launch of the Long March-3K4 carrier rocket, because each satellite weighs 13 to 14 tons .”
Tang Hua listed the satellites to be launched in the next few years:
"Not counting rockets of the Long March-1 level, Tianjin Rocket Factory's annual production capacity of launch vehicles + long-range ballistic missiles is 12 to 15, and the current plan has already filled the Tianjin Rocket Factory. If you want to start the manned spaceflight project , then the Tianjin Rocket Factory and the entire rocket manufacturing industry must be expanded, which is a huge investment.”
"In addition, astronaut training, development of manned spacecraft, space launch, and measurement and control system all require investment. The measurement and control system is an ocean-going measurement and control ship, because what is launched is not a satellite but a living person. The position and status of the spacecraft can be monitored.”
……
"In terms of launching artificial satellites, we are ahead of the United States, which is about the same as the Soviet Union," the chairman said. "The matter of launching people into space seems to be much more complicated than artificial satellites."
Prime Minister: "Indeed. It costs a lot more."
Tang Hua: "The Sino-Soviet scientific community Baikal meeting will start soon. Qian Xuesen and I will go to discuss future space cooperation issues with comrades in the Soviet aerospace industry. This involves the basic design structure of our future larger launch vehicle. To launch a spaceship for human spaceflight, the spacecraft is much larger than ordinary satellites, at least a Long March-3K2 rocket, preferably a Long March-3K4.”
"But the Long March-3K2 and Long March-3K4 are relatively expensive and large. After building these rockets, I think it is better to launch spy satellites and agricultural production estimation satellites."