Translated from the Headlines （Toutiao 头条新闻）
Author: Poplar Observation Room （白杨观察室）
Yanliang Airport, located in the northeast of Xi’an, has always been a place that Chinese and foreign military enthusiasts pay special attention to. That place gathers three heavyweight units of China’s Aviation Industry-First Flight Institute, West Air Flight, and Test Flight Institute, and various important equipment of the People’s Navy and Air Force. , Will also appear there in a concentrated manner. Last weekend, Google Earth software also updated the photos of Yanliang Airport taken by commercial satellites. From this latest photo, we can see a lot of things that are eye-catching.
First of all, there are arguably full of Y-20 large transport aircraft in different states parked at the airport. Roughly speaking, there are at least eleven or two newly-produced Y-20 in different states; including those that have been brushed. Painted by our army, which is about to be delivered to the air force combat units, several new aircraft that are not painted but equipped with engines, as well as several airframes in different states but without engines; and in the parking area on the right, there are also two Yun-20 prototypes equipped with four turbofan-20 engines that have been of great interest.
Although compared with the satellite images in January, it seems that the same Yun-20 parked on this site is still the same, but no matter from the engine installation status or the painting of these aircraft, it can be judged that this Yun-20 should Most of them are newly produced.
There are 3 more in this corner
XAC’s production capacity is now becoming stronger and stronger. The U.S.-made C-17 transport aircraft was shut down from 1991 to 2015 for a total of 24 years. A total of 279 aircraft were produced. In the peak years, 16 aircraft were produced each year. And now that we can still produce more than 10 large transport aircraft each year, there is only one in our country; at the beginning of this year, our army has been in service and formed combat effectiveness. There are only a few regiments in the two divisions. There were 22 Yun-20s. At that time, 18 Yun-20s were parked at Yanliang Airport. We said that the mass production quantity of Yun-20 exceeded 40. Now the Yun-20 on the airport has been changed to another batch. Guess how much the -20 has expanded. At least at the end of next year, it is not a dream to double the number of our military -20 in service in two years; the world’s second-largest transport fleet is within reach.
In addition to the big ramp-up of XAC’s production capacity, there are also several other exciting hidden messages. For example, according to the news on Aviation Development, it is well known that China imported the D-30KP2 engine from Russia in the past two years, because it must guarantee the production of H-6 and Y-20 at the same time, the production of H-6 and Yun-20 basically has no surplus at present, and there are no more orders in the past two years. Therefore, the new Yun-20 produced in the future can basically only use the domestic version of the engine, combined with this year’s chief engineer The statement made in the interview is enough to show that the Turbofan-18 has been used, and the Turbofan-20 has also gone well.
Two Yun-20 with turbofan-20 docked side by side
There are also two small ones hidden in a pile of unengined Yun-20 and several H-6s. They are also as attractive as these big guys. Of course not because of the others, but because of the back of the aircraft. The identity represented by the big plate’ on his back; yes, this is the prototype of two Air Police-600 carrier-based fixed-wing early warning aircraft also appeared in the airport.
From the top view, we can also see detailed information that is not visible in the front view, such as the arrangement of the early warning radar in the radome; detailed parameter information such as the wingspan and length of the aircraft platform. Using the built-in ruler to make an inaccurate measurement, the captain of this carrier-based fixed-wing early warning aircraft of our army is about 17 meters and the wingspan is about 24 meters. It is the size of a classic carrier-based early warning aircraft; The E-2 series are very similar.
However, if you compare the top view of the E-2, it is almost impossible to say that it is very similar, it should be said to be exactly the same; basically, the same size of the fuselage, the same four-piece vertical stabilizer design, including the nose cockpit and The design of the tail is extremely similar. Combining the two top views together, it is the same type of aircraft with different paintings. Not surprisingly, our country had no experience of self-developed ship-borne fixed-wing early warning aircraft before. Since there have been artificial round wheels that are quite useful, there is no need to go back and invent the square wheel.
The upper side is the Air Police-600, and the lower side is the U.S. E-2D. Regardless of the paint, it’s the same aircraft.
Another point worth noting is that, as can be seen from the structure of the radome, our army’s fixed-wing carrier-borne early warning aircraft did not use the two large and medium-sized early warning aircraft previously used in the Air Police-2000 and Air Police-500. The unique three-sided fixed active phased array radar with Chinese characteristics uses a single-sided phased array radar for rotating scanning arrangement.
This is an art of design choice. In the past, the three-sided fixed-mounted electronic scanning array commonly used in early warning aircraft in our country has the advantages of high data update rate and wide monitoring angle, but the radar composed of the three-sided array is quite heavy. , It’s very unfriendly to carrier-based aircraft, which requires careful calculation of each gram of weight. Secondly, the requirements for heat dissipation and power supply are also quite high. It is difficult to exert performance; compared with a rotating array of the same size, the three-dimensional array has a small surface area and poor scanning performance at a large angle.
Therefore, the Air Police-600 chose to use a single-sided array uncharacteristically. It is not difficult to understand. It is just a dojo in a snail shell. The diameter of the round plate carried by the carrier aircraft is originally small. The three-sided array will continue to sacrifice the single-sided array. The performance is very cost-effective. Stacking the power supply, heat dissipation, and front area on the same front to turn it around is the most suitable choice at this time.
Don’t say anything else, just the two Yun-20 with turbofan-20, and more than ten brand new batches of Yun-20, coupled with two carrier-borne early warning aircraft, there are already old faces of all kinds of the bombing. -6. Things that are parked randomly in this airport are enough for most of the national air force to be jealous