In the past few days, the news of the Long March 5 B Yao-4 carrier rocket carrying the Dream Experimental Cabin at the Wenchang Space Launch Site has been widely circulated on the Internet. But what you may not know is that the Long Five B Rockets have a nickname called "Ice Arrow".
Why is this? In fact, the Changwu series is my country's new generation of launch vehicle . In addition to its strong carrying capacity and huge body, its characteristic is that it is a non-toxic and pollution-free fuel "liquid hydrogen and liquid oxygen". This is also the main feature of my country's new generation of launch vehicles.
Long March 5B launch vehicle is the rocket with the strongest low-orbit carrying capacity in my country. It weighs nearly 900 tons, and more than 90% of the weight is deep low temperature liquid hydrogen liquid oxygen fuel.
You will also notice that when you look at the picture of the fortune, there is no white smoke coming out of the Long Five B rocket body. The audience who could find these details were also friends with strong observation and brain power. At this time, there was no fuel inside the Rocket.
We know that the temperature of liquid oxygen reaches -183℃, and the temperature of liquid hydrogen can reach -253℃. This is also the origin of Long March B winning the title of "Ice Arrow".
Question day Experimental cabin was launched before launching five B rockets
In fact, these fuels were only refilled before launch, so we could not see the white smoke coming out of the arrow body during transportation, and the reason we could see before launch.
