Rema said excitedly: "Ah, Mr. Philip, it turns out that you have a way to solve the problem of aerodynamic control of the flying wing aircraft?" Tell us how we can effectively control the winger! ”

In the face of Reima's curiosity, Xiao Weiguo also felt that it was necessary to give Messerschmidt, Cam and Horton brothers a lecture on the aerodynamic layout of the flying wing, and of course he hoped that under the auspices of the Layton brothers, the flying wing aircraft would be designed and manufactured as soon as possible. You must know that the flying wing aircraft does have many advantages that are incomparable to normal layout aircraft!

Xiao Weiguo said: "Today I will systematically analyze the advantages and disadvantages of the flying wing aircraft, so that we can correctly understand it, and then design and manufacture a practical flying wing aircraft according to its characteristics." First of all, we know that aircraft aerodynamic layout design is a key technology of aircraft design, which is not only limited to the aerodynamic shape design of the aircraft, but also includes the calculation and selection of various aerodynamic parameters. Of course, the ultimate goal of the aerodynamic layout design of the aircraft is to improve the aerodynamic characteristics of the aircraft. For example, for transport aircraft, we need to improve the lift-to-drag ratio and cruise efficiency of the aircraft, reduce fuel consumption, reduce flight resistance, and improve the economy of the aircraft by adopting advanced twist layout design methods and technologies. For fighters, we mainly consider its maneuverability and firepower, range and other factors, and we will not care so much about economy. ”

Rema said excitedly: "Mr. Philip, the M30 business transport aircraft you designed is such a successful transport aircraft!" We also know that its aerodynamic shape design is very good, and it is very advanced in the design of the fuselage structure, so it has better performance than the most advanced transport aircraft in the world. I think our winger will also be a good fighter, and we think it will be able to have a greater range and a lot of firepower. ”

Xiao Weiguo shook his head and said: "Lei Ma, although the flying wing pneumatic motor bureau has many advantages, its biggest disadvantage is that the maneuverability cannot be too good!" So it's a bit of a stretch to make it a fighter! As far as the current research goes. The aerodynamic layout of the aircraft mainly includes normal layout, canard layout, tailless layout. Among these three layouts, the canard layout and the tailless layout are both static and unstable designs, so their flight attitude control is relatively difficult, and the current aircraft are basically normal layouts. Of course. There are also some designers who have come up with strange aerodynamic layouts such as two-fuselage layouts and wing-wing layouts, but because the current aviation technology is not mature enough, there are relatively few studies on these aerodynamic layouts, so aircraft such as flying wing aerodynamic layouts have not yet appeared in the sky. ”

Rema nodded and said, "It is precisely because of this that our brothers want to send the wingers into the sky!" ”

Xiao Weiguo laughed and said, "It's good that you guys have this idea!" We designers in the aviation industry are all about exploring. Flyplanes do have some advantages that are difficult to achieve with ordinary layout aircraft. For example, its structure is lightweight and rigid. The flying wing layout can significantly reduce the weight of the aircraft, and due to the removal of the flat tail and vertical tail, the fuselage structure can be greatly simplified, in general. The tail part is the farthest from the center of gravity of the aircraft, if the tail weight is reduced by one kilogram, it is equivalent to a reduction of two kilograms of the fuselage, and due to the elimination of the tail, the weight of the whole aircraft is more reasonably transferred to the distribution along the wingspan, thereby reducing the bending and torsional loads of the wing, and the weight of the structure is further reduced. The ultra-wide and ultra-short fuselage design of the flying wing is certainly the best structural strength under all equal conditions. ”

Cam was surprised, "Ah. Mr. Philip, what you say makes so much sense. I'll have to write it down, and I think I'm also interested in this winger now, and it's a great form of layout. ”

Xiao Weiguo said in a deep voice: "In fact, the most important thing is that the wing of the flying wing is fused with the fuselage, which greatly reduces the interference drag and induced drag, thereby reducing the total drag of the aircraft." This makes the entire fuselage of the aircraft form a huge lifting body. I think this will at least increase the endurance, range and payload of the aircraft, so that the cost of using the aircraft will also be reduced. In particular, we now have a jet engine, which is the best power for the flying wing, and if it is placed on the back of the flying wing, the flight efficiency can be further improved. Other than that. The flying-wing changed the traditional layout of the fuselage load, and the loading area became a wide central fuselage wing integration, and the loading volume was increased by at least a quarter under the same conditions. So all these advantages are combined, and I think that the flying wing is best designed as a bomber and transport aircraft! And not to be a fighter. ”

Cam nodded, "In this way, the winger does have many advantages, but the disadvantages are also obvious. Its elevator control arm will certainly be shorter than the conventional layout aircraft, so the maneuvering efficiency will be greatly reduced, due to the reduction of pitch control efficiency, the flying wing aircraft in take-off, landing performance is certainly much inferior to the conventional layout aircraft, the flying wing aircraft does not have a horizontal tail, so the longitudinal stability also decreases, there is no vertical tail and rudder, and the lateral natural stability is also reduced. In this case, we still have a lot of work to do to turn the winger into a real aircraft! ”

Among the five people, probably only Xiao Weiguo knows how difficult it is to fly wing planes! Although the Horton brothers had designed the world's first tailless flying wing jet fighter-bomber for Germany during World War II. Of course, unconventional layouts naturally come at an unconventional cost, the wing has unpredictable stability problems, and the turning radius and roll performance are unsatisfactory, so no one knows how practical it is.

Since the 20s, the American Noslo spectrum has also carried out quite rich research on the layout of flying wings. In the 30s, he collaborated with Professor von Kármán on the flying wing layout and built the N1M research aircraft. And it was also the experiments on this aircraft that led to the conclusion that the lower anti-angle of the wing did not help much for the turning performance of the flying wing.

Beginning in the spring of 1945, the Go229A began production at the Gota plant. At the same time, a follow-up improvement plan was initiated. If all goes well, the two-seater armor-reinforced Go229B could go into production in August 1945. However, when production of the Go229A began smoothly, the U.S. Army's 9th Panzer Division captured Goda's factory in Fredericksloda. 20 Go229A and its latest modification, the Holden IX., V3. V4. V6 fell into the hands of the Americans together.

Of course, Xiao Weiguo knows that even if the Go229A is successfully produced, there will be aerodynamic control problems that are difficult for the flying wing aircraft to overcome, and even in the process of testing, the Go229 also dropped two prototypes. Naturally, it could not be solved with the aviation technology of that time, and it was only after the eighties and nineties that the inherent shortcomings of the flyplane were overcome.

However, the Dragon Soul Ordnance Consortium ushered in two new employees, and they are also two geeks, Xiao Weiguo is naturally too late to be happy, with the addition of the Horton brothers, the strength of the Dragon Soul Ordnance Consortium will become stronger in the future! (To be continued.) )