【F-313】伊朗最先進的第五代隱身戰鬥機，50年前的技術水平，50年後的外觀造型|伊朗銷聲匿跡的F313再度亮相，模型越做越真實了

On the road to the research and development of fifth-generation fighter jets, China, the United States and Russia are undoubtedly far ahead. The J-20, F-22 and F-35 have already entered service first. Russia 's Su-57 has also been officially installed at the end of 2019. In addition , it ranks second The echelon of South Korea, Turkey , India and Europe, they almost all have a complete design scheme, and even show a full-scale model. It is not far from the birth of the first prototype. T-FX , India's AMCA and other various fifth-generation aircraft plans are talked about with relish, a different kind of stealth fighter that has been silent for many years is re -appearing . That is Iran's F313 fighter . Whether the Iranian aviation industry , which started out by repairing foreign aircraft, has enough strength to develop it. What about advanced fifth-generation fighter jets? Today , let's talk about this fifth-generation aircraft model F313 . On February 2, 2013, to commemorate the 34th anniversary of the upcoming Iranian Islamic Revolution, the Iranian military released a code-named "Conqueror F313". The 6th President of Iran, Mahmoud Ahmadinejad , said in a speech on Iranian state television that this fighter jet would be among the first in the world, showing Iran's determination to "conquer the pinnacle". Let's not mention how the fighter jet was built, just rely on this speech. Not to mention that Persia is indeed a very backboned nation. It is said that Iran has accumulated a lot of successful experience in fighter design for the development of the F313 stealth fighter. Among them, I have to mention the Lightning fighter, which is the basis for Iran to lay the foundation for flight control and other technologies to ensure its actual mastery. In 2007, Iran improved the American F-5 to manufacture the "Lightning" fighter aircraft and verified the double vertical tail design developed by the country for the first time. From the appearance of the F313 fighter on display this time, the "Lightning" should be for the According to the published photos, the new Iranian fighter has a canard aerodynamic layout , a single- engine dual vertical tail , and the main wing is a swept wing that droops at the end. Although Iranian military designers have made efforts to set the aircraft in black The ridgeline adopts canard layout and fake wing body fusion to make the aircraft look very advanced , but in fact the technical level of the aircraft basically stays at the F313 in the 1970s when the United States still maintains arms sales relations with Iran. It has a canard layout , but the canards are not fully moving. Its main function is still to control the aircraft and at the same time increase some lift for the fighter to take off, so as to shorten the take-off distance of the fighter. It was once popular in the 1970s . Because Iran does not have the ability to independently develop fly -by-wire control, it is reasonable to adopt this semi- duck "canard layout" . The main wing area of ​​the F-313 is very small, there are no flaps, and the leading edge of the main wing does not have any increase . The canard and the main wing are almost completely in the same plane. These features mean that the takeoff and landing performance of the F-313 will be very poor. The main wing has a fold down at the end, which is said to create pressure for the F313 at high speeds. However, this design is not only unfavorable for stealth, but also brings additional resistance. In addition , the design of the F-313 air intake is not ideal. The air intake on the back of the fuselage is not only unsightly, but it may not be able to enter at a high angle of attack. Air This means that this aircraft does not have the ability to fly at a high angle of attack. As for maneuverability and cruising speed, you can guess what is more "powerful" is that the F313's swept-wing wings are very thick, and the single-engine fuselage can almost judge it . Certainly not capable of supersonic flight . The simple aerodynamic layout with only a few rudder surfaces and two ailerons can not support complex maneuvers. In addition, the aircraft adopts a rare on- wing air intake layout , and there is no such thing as a boundary layer separation system. The fuselage also Without using the area ratio design, high-speed flight can only be thought about. More importantly, the nose space of the F313 is too small. Even if the radar is barely installed, it can only be said that it is better than nothing . The interior of its cockpit is very simple and cheap, which is exposed. In view of the difficulty of Iran's breakthrough in advanced avionics, the bomb bay cannot be expected. From the details, the structure and workmanship of the F313 are very rough, the cockpit structure is unreasonable, the cockpit cover is not flat , and the connection between the two is almost difficult to achieve airtight landing gear Thin and slender, it shows that the aircraft does not have a very heavy body , plus the almost ineffective fusion of the wing body, the aircraft should be just a full- scale model , and there is still a huge gap between the test flights, although according to Iran itself, Iran has become the world 's largest aircraft. The fourth country to build a fifth-generation fighter. However , in the eyes of military experts, the performance of the "Conqueror 313" fighter is not optimistic. Although it should not be a problem to fly into the sky, it should not be too much to expect this fighter to have actual combat capability . It should not be expected that this aircraft will have all the advantages of other most advanced jet fighters in the world. In 2021, the Iranian Defense Minister announced that the disappearance of the F313 stealth fighter has been re - tested . The prototype has reached the test level of weapon delivery . In addition to the surface treatment process of the F313 that appeared this time, the biggest change is the change from the single-engine design during the first flight to the dual-engine design. According to known information , the Iranian engine The development capability does not exceed the level of the F-5 fighter J85. This is a turbojet engine at the level of the 1950s. The military thrust is only 15 kN, and the afterburner thrust is only 22 kN. Therefore , the F313 must be converted to a twin-engine design at all costs . Although its design shortcomings There are many , but there are also bright spots, such as the diamond-shaped fairing tail support and the buried tail nozzle design, which imitated the US F22 fighter , but sacrificed thrust as a result , which is the source of its lack of mobility. As for the use of the F313, there is no In the case of a bomb bay, it can only maintain a certain degree of stealth when it performs a reconnaissance mission. Without radar, even with ground guidance, it is difficult to perform interception missions. Its final positioning may be a kind of F11. 7 A more similar fighter -bomber can be regarded as a kind of "F117 without a bomb bay". From the current information, the F-313 may be a subsonic stealth capable attack aircraft, but compared with the fifth-generation fighter that took the lead . The parameters of the -313 are too far away from the fifth-generation stealth fighter, and whether the F-313 can achieve the strength expected by Iran to have all the advantages of the world's most advanced jet fighters, then we can only wait and see . The introduction is here, please continue to pay attention to us , you can watch the latest videos and browse past highlights, please leave a message in the comment area and see you in the next issue