In 155, during the war crisis between the Kisaa Federation and the Republic of Skira, in addition to the confrontation between the army on the border, fighter jets were also on patrol in the air. Both air forces are well prepared, and although the Federal Air Force is not as good as the Republic Air Force, they have still drawn up combat plans. Due to the excellent high-speed performance of the PX series fighter jets, the Federal Air Force needs to utilize high-speed performance after thorough investigation and preparation, to first bomb and paralyze the Republic's border airports, reduce the gap between the two sides in a short period of time, and then quickly expand its advantages. However, due to the lack of readily available weapons at the time, pilots had to mount free fall bombs to bomb heavily guarded airports. This plan is not much different from the Republic's plan to throw hydrogen bombs in terms of danger. After the crisis was resolved, the federal leadership voted that there was no possibility of another conflict with the Republic within ten years, and there was a high probability that there would be no conflict within fifteen years. Therefore, from the successful test launch of the LF-1 supersonic missile at the end of 155 to the end (failure) of the TJ-1 cruise missile project in 160, the federal government has been promoting significant breakthroughs in air force infrastructure, including research in materials science and aerodynamics. The development and accumulation of experience over these five years laid the foundation for the Federal Air Force's ability to confront the Republic Air Force head-on in 172
Then, just as they were happy about it, they realized an awkward fact - there was no suitable plane. I have developed this high-tech weapon, can't you still use the old PX-3? So I have weapons and cannot use them. If the Republic suddenly launches an attack, how can we safeguard the freedom and rights of federal citizens in this situation? Therefore, in 161, they quickly pulled up the Dawn Design Bureau, which had been placed for five years, and began discussions on this matter.
The foundation of the Air Force is developing, and the Dawn Design Bureau hasn't had much work in five years. The design bureau can only rely on basic funds to make a living, and how to live in the future is a problem. Therefore, when the federal leadership requested the design bureau, the Dawn Design Bureau quickly packed up their luggage and rushed there. After they rushed over and asked about the design requirements, they realized that the federal authorities had brought them over just to discuss what kind of aircraft to design.
The foundation of the Federal Air Force is far inferior to that of the Republic Air Force, and even the vector engine that has long been popular in the Republic Air Force was developed by the Surge Power Company in 155. But they were not without merit. The unique afterburner engine of the PX-3 multi-purpose fighter jet was the only one that existed at that time, making it the world's first aircraft to break through Mach 2. Therefore, the Republic's main fighter jets value maneuverability, while the Federal main fighter jets value high-speed. So, after multiple rounds of voting, the design bureau proposed an idea - to build two types of fighter jets, one inheriting the bloodline of interceptors and focusing on high-speed support; Another type of multifunctional fighter can not only serve as an air superiority fighter, but also as an excellent ground attack aircraft after switching weapons. Although this idea requires the production of two types of fighter jets, it seems to be in line with the current situation of the Federal Air Force. After gritting their teeth, the Black Federation senior management approved this idea.
Therefore, the Federation has simultaneously launched the FF Program (Fast Fighter) and the MF Program (Multifunctional Fighter). The FF plan is today's protagonist, the fastest legend - Breaking Dawn 9A.
In subsequent discussions, they began to define requirements for the plan. As they are not sure how fast the highway needs to be, they first conservatively delineate a possible range. Considering the development of technology, they have decided to achieve a maximum speed of over Mach 3.5 per hour at an altitude of 8000 meters; The maximum flying altitude is 20000 meters. For mobility, they thought for a moment and thought that high-speed fighter jets should not have much mobility demand, so they did not make any requirements... is this requirement conservative? Mach 3.5! The design bureau feels that this is very troublesome. Not to mention whether the pilot can withstand such a high speed, 3.5 Mach is about 4000 km/h. How can we improve it? How about leaving the problem to the surging power company.
So after the request was confirmed, they quickly brought together the relevant companies and military enterprises involved. In addition to the new requirements for materials and anti G clothing, they focused on finding and discussing Pengpai Power Company. The top management of the power company would be foolish to hear the request, what the hell? The CEO even suspects that he may be implicated as a result. If this requirement is not met and the federal executives blame the problem on the power company, it is uncertain how I will be killed by angry federal citizens. But they cannot refuse, they can only guarantee a certain completion of the target first, and then work hard on the bottom designers.
Regardless of how surging power company solves the problem, Dawn Design Bureau will first encounter the problem - how to design the aircraft? After several rounds of discussion, they believed that the wind resistance of the external hanging rack was too large to be conducive to supersonic flight, so they decided to adopt a built-in magazine design. This plan continues the variable sweep wing design of the PX-3; After aerodynamic verification, the upper single wing design is adopted to increase the aircraft's stability and ensure its high-speed performance; The intake ports are located on both sides of the fuselage and adopt a large intake port design to increase the intake volume; The belly of the aircraft adopts a large capacity built-in magazine to increase the payload and leave space for subsequent installation of large weapons; At the same time, increase the fuel tank capacity to ensure sufficient idle time during afterflight. They even adopted dual vertical tail fins and added pelvic fins to ensure heading stability. All sorts of designs point to the characteristic of high-speed flight, which determines her slender body. Although it is not conducive to maneuverability, it provides considerable high-speed performance... and then something goes wrong.
The plane disintegrated. In a virtual simulator, when the flight speed exceeds two Mach per hour, the aircraft experiences severe shaking, followed by disintegration. This incident shook everyone, and without solving this problem, the plan will be difficult to advance. However, after the designer checked the requirements, they did not identify the problem. It was already 163 years ago, and federal officials began urging the Design Bureau to provide solutions. The design bureau is divided into two factions, with one proposing to increase stability by increasing weight. They ultimately doubled the weight of the entire machine and successfully solved the problem; Another faction believes that we should continue to search for the root cause of the problem. Just as the two sides were arguing, the engine was delivered by the surging power company.
Originally, Pengpai Power Company was worried about what to do if the engine test failed. After discovering that the design bureau had not even finished designing the aircraft, they were relieved because they were certain that even if the problem was pursued later, it would only be pursued by the design bureau. The design bureau quickly used this engine on a virtual simulator and found that by doubling its weight, the aircraft would still shake and disintegrate even after reaching higher speeds. In response, the designer who originally proposed increasing the weight readjusted the weight until it doubled before solving the problem. At this point, the speed has reached 4400km/h, and it can be said that the engine problem has been completely solved. The basic design of the aircraft is completed and can be submitted. However, in the maneuverability test, this aircraft had a maximum overload of only 9G without activating the afterburner, far lower than the PX-3 data. Therefore, even after the proposal was submitted, the federal executives furrowed their brows and decided to let them see if they could make any further modifications. At the end of 163, another machine finally discovered the fundamental problem - the connection of the fully moving tail wing was firm. After adjusting the hinge damping, they completely solved the problem. The faction that increased the weight, due to their plan breaking down at a speed exceeding Mach 4 during the aircraft's afterburner dive, is considered flawed. The final problem was completely resolved, and the weight of the fighter remained unchanged.
In 164, with the equipping of anti G suits and new weapons, the basic design of fighter jets was completed. After the prototype left the factory, the test pilot piloted a steel giant with high quality, starting to break through the speed limit in human flight history. 4600... 4700... 4800... 4850... 4900! The new aircraft successfully broke the Mach 4 speed limit, even faster than required! As soon as the news came out, all the people involved in the design were very excited, especially the surging power company, which greatly increased their reputation. They even held a three-day party for it. At the same time, this aircraft can still reach 2000km/h without activating the afterburner, with a maximum overload of 23G at 1200km/h, which is a fundamental leap compared to the original 9G.
Finally, at the end of 164, the federal government decided to purchase the aircraft and named it the PX-9A. As a pure interceptor, she deeply impressed everyone with the speed of Mach 4. In the battlefield, she will serve as support and rush to the battlefield at the fastest speed. With six mounted LH-5A active radar shells, she will shoot down the attacking enemy and then fly away. Her followers even plan to install the TJ-2 patrol missile being developed for her in the future, giving her ground strike capability. Unfortunately, she ultimately failed to continue the glory of the interceptor.
Since 163, there have been high-level doubts about the necessity of the FF plan. They believe that the interceptor's function is too single and not suitable for future air force development. Although only a small number of people questioned her at the time, in 164, more and more people began to doubt her. For this reason, during the first flight of the PX-9A in 164, the design bureau invited all those who opposed it to watch together. The roar of the sonic boom echoed through the sky above the test flight site, deeply shaking the hearts of everyone present. She conquered everyone with her own strength. After a vote, in early 155, the federal government began small-scale mass production of this aircraft. Believers believe that when used in practice, everyone will witness her true strength. Until the Republic's M-12A is publicly displayed.
Excellent maneuverability, with a maximum overload of 55G. Although it has the drawbacks of short range and low payload, the terrifying mobility data has awakened the sanity of the federal leadership. Moreover, the Republic claims that this aircraft is low-cost, so is it possible for them to develop more excellent fighter jets? Are the FF and MF plans really sufficient? The cruelty of reality awakened the federal leadership, who resumed consecutive days of voting and ultimately determined that the PX-9A was not suitable for the development of the Federal Air Force. They asked the Dawn Design Bureau to manufacture new planes as soon as possible to replace them, and gradually closed the production line of the PX-9A.
9A... ultimately failed to receive recognition. Her successor model 9C was even jokingly referred to by pilots as PX-14A due to its significant difference in appearance from her. Although she had not even experienced public display, she had already been sentenced to death... At dusk, the believers issued their final request - to have her participate in the 165 Air Force Exhibition.
After experiencing numerous difficulties, on the day of the Federal Air Force exhibition, the world witnessed the birth of the fastest legend. The black eagle, dressed in a white round skirt (sonic boom), broke through the clouds like lightning. She broke through the highest speed of human aircraft at Mach 4 per hour, marking a successful end to the history of interceptors?
In 166, all production lines of PX-9A were closed, resulting in a total production of less than 40 units. The Air Force purchased all the remaining aircraft, which was considered their last resort. They were prepared as a last resort, but more importantly, they integrated into the blue sky to become the backdrop for the new aircraft. However, our longing for higher and faster never ends. In 167, as other planes were named one after another, the federal government ultimately decided to give her a name as a memento - the sonic boom. Although the 9C later took a different name as an independent model of aircraft, federal citizens still remember her, both the design bureau and former believers. The era of interceptors has come to an end, but as in the scene of the 169 film "Above the Clouds," the 9A chased missiles through all fighter jets, and we look forward to the PX-9A once again breaking through the fog and breaking into the clouds. The name of Breaking Dawn is just like that.
Her life is limited, while her spirit is infinite. Her life has come to an end, but her spirit will still endure. The existence of interceptors may be short-lived, but the federal pursuit of freedom will never cease!