Aerospace sub-orbital bombers will be a high frontier that will be fiercely contested by global powers in the next 50 years. Because once fully mastered, it will have the absolute advantage of being commanding, and can truly achieve arbitrary strikes against all hostile targets a

Aerospace suborbital bombers will be a high-end frontier that will be fiercely contested by global powers in the next 50 years. Because once fully mastered, it will have the absolute advantage of being commanding, and can truly achieve arbitrary strikes against all hostile targets around the world within one hour, and it will be almost difficult to intercept by conventional means. But everything has a price. Not to mention aerospace suborbital projects, only two major countries in the world are actually advancing projects, and another 0.5 have been mothballed after a brief trial. It can be seen that the research and development of this type of aircraft itself is already extremely difficult. The supporting ground support system is currently only available in two major countries. The ground support system of the aerospace suborbital bombing system is very large and complex; the only things that can be easily seen on a plain surface are the command, measurement and control system and the take-off and landing support system. Let’s not talk about the command, measurement and control system here, it is just the take-off and landing support system. To put it in the simplest terms, it refers specifically to its dedicated runway for take-off and landing; currently there are only 2 sets in the world. superpower directly utilizes the ultra-long runway built for the

space shuttle in the past. The main part is more than 5 kilometers long, and the extension section is more than 8 kilometers long; while Changduojia has completely built a new super runway with a length of more than 10 kilometers, and there is no second one in the world that can compare. According to common sense, since they are all nearly horizontal gliding landings, then space shuttles, aerospace planes and sub-orbital models. It should be about the same as an ordinary large aircraft. There are thousands of large civil airports around the world, and even military bases with long runways are only one or two hundred in the world. Why not just use these existing facilities and build runways specifically for space shuttles or aerospace suborbitals? Some people think it is the need for confidentiality. There are indeed considerations in this regard, but it is not absolutely necessary. If you are worried that the large civilian aviation base will be overcrowded and difficult to keep secrets. But many large air force bases themselves have strict management. It can fully meet the corresponding confidentiality requirements. Moreover, projects such as the space shuttle are themselves,

semi-civilian. A dedicated runway must still be used, confidentiality is second, and more importantly, the requirements of the technology itself. Today's ordinary airports are divided into several grades according to their degree of perfection. The length and width indicators of its main shells, as well as the concealed laying thickness, are the main basis for setting the range. The shortest one can be up to 1 kilometer, and generally can only take off and land small propeller aircraft; while the most common one is generally 2,800 meters long, with a concrete thickness of about 50 centimeters, and can take off and land almost all fighter jets and most civil aircraft below 200 tons. The highest-grade main runway is 4,000 meters long, and can reach 4,500 meters with extensions. The paved thickness is more than 70 centimeters, and can take off and land all today's five- to six-hundred-ton giant aircraft including , 225 and A380. But it still cannot be used to take off and land space shuttles and aerospace suborbitals. The main reason is that for almost all conventional large civilian aircraft, the take-off or landing rolls rarely exceed 3,500 meters, so a long runway of 4,500 meters can be fully satisfied. However, there is a high probability that the safe rolling distance of space suborbitals, including space shuttles, will exceed 3,500 meters, and a 4,000-meter runway is not considered safe. The paved section of the entire runway must be designed to be at the 5-kilometer level, and an extension section must be left as a precaution. The reason for this is that the gliding of aerospace suborbitals, including the space shuttle, is actually only half gliding; it is also equivalent to the temporary addition of small wingspan wings to large spacecrafts. Therefore, most of its speeds when approaching the runway are still around 350 kilometers per hour. Most of the speeds of ordinary large aircraft have been controlled below 300 kilometers per hour before landing. In addition, in order to reduce weight on the aerospace sub-orbit, the landing gear tires generally lack the large braking devices found on ordinary aircraft, or if they do, they are rarely used. Because it is afraid that the grounding speed is too high and it will catch fire due to violent friction. So we can only use a particularly long rolling section to slow down slowly. As for the future aerospace aircraft, whether it is a two-stage system or a single-stage preparation for orbit. They will maintain the high-speed shape of , which is not much larger than the aspect ratio of .That would be like the Concorde, which often has ultra-long takeoff and roll distances of more than 3,000 meters; it also needs to use a 5-kilometer super runway to take off. The world's longest super runway is not just a single one, but a large triangular design. Each side of this triangle is more than ten kilometers long. This allows the aerospace sub-orbit to attack in any strategic direction around the world; and it can naturally land on the runway after flying around the world at least once, which can be said to be considered 50 years from now!