After half a day of discussion, the overall plan of the two types of tanks was basically determined, and the next step was to write the plan, Karl and Messerschmidt were responsible for the overall plan of the 15-ton light tank, and Xiao Weiguo was alone responsible for the overall plan of the 30-ton medium tank.

It is also a very complex project to disassemble a tank into multiple subsystems and then subcontract them to other companies for development, first of all, to determine the volume, weight and various performance indicators of each subsystem, so that the subcontractor can carry out detailed design and development according to these requirements. For example, the torsion bar suspension used in the two new tanks is a completely new tank suspension, and none of the tanks have used this torsion bar suspension device so far. Before World War II, Christie and balanced suspension were the most frequently used in tanks, and torsion bar suspension was only available in the late twenties, first used in automobiles, so if it was to be used in tanks, it needed to be redesigned.

A torsion bar spring is actually an elongated metal rod that is mounted transversely on the bottom deck. Its length is about the same as the width of the car body, one end of it is fixed on the side wall support of the car body, the other end is penetrated through the car body, connected with the balance elbow, and the upper and lower beating of the load-bearing wheel twists the torsion bar in the process of driving, so as to absorb the impact energy of the ground on the car body. Each load wheel is connected to a torsion bar, and the number of torsion bars is the same as the number of load wheels. The diameter and length of the torsion bar determine the suspension characteristics of the tank armored vehicle. Because the torsion bar structure is simple, easy to install, the unit volume absorbs more energy, the dynamic stroke is very large, theoretically forms the total length close to 2 times the length of the balance elbow, that is, the balance elbow up and down the nearly vertical state, occupies a small volume in the car body. Reliable work and not easy to damage.

Compared with the more complex and unreliable suspension device with staggered arrangement of load wheels widely used in the production process of German tanks in World War II, the torsion bar suspension device can be said to be much better, which is the mainstream of tank suspension devices after World War II. Of course, only Xiao Weiguo knows this, but now all he needs to do is how to get the subcontractor to realize his design. You must know that the German designers are very fond of the suspension device staggered by the load wheels, and it is not easy for them to accept the new torsion bar suspension device and seriously design and develop it, but fortunately, Dragon Soul Ordnance is the general contractor, and he has the right to let the subcontractor realize his design ideas.

Xiao Weiguo knew that during World War II, the suspension devices of the German "Tiger" and "King Tiger" heavy tanks were coaxially staggered with 8 large-diameter load-bearing wheels; The balancing elbows on both sides are facing in different directions; The front and rear load wheels are equipped with barrel hydraulic shock absorbers. This suspension reduces the load on the individual load wheels and reduces the rigidity of the suspension. Improves the smoothness of the tank's ride, especially on the road. The defect of this scheme is that the suspension device weight is too large, and the structure is complex and causes poor reliability, and maintenance is extremely inconvenient, and the outer load wheel must be removed time-consumingly and laboriously when the load wheel on the inner side is repaired. It is also not known why German tank designers were so fond of this design. However, now the design of the suspension of German tanks and even tanks in the world will change because of Xiao Weiguo's design.

The suspension and travel parts are planned to be subcontracted to Galler-Benz, which has strong competence in the design and manufacture of car chassis suspension and train running gear.

Soon the date of the Coordination Meeting on Tank Development arrived, and in the conference room of the German Ministry of Defense, 10 enterprises associated with tank building were invited. Except for the Dragon Soul Ordnance Complex. There are also Krupp, Daimmer-Benz, Porsche, Henschel, MAN, Rheinmetall, Carl Zeiss, Maschinfabfab, Maybach. These companies were the mainstays of German industry, and during World War II they produced countless weapons for Germany! This time they came together. It's just to give a hand to the newly rising Dragon Soul Ordnance Industry Complex, and of course some companies are not very satisfied. After all, the Dragon Soul Ordnance Consortium is just a rising star, although its two members, Bofors Defense Company and Messerschmidt Company, have existed for a relatively long time, but they are both second- and third-rate ordnance enterprises, and in any case, they are not as famous as companies such as Krupp.

The meeting was chaired by Lieutenant Colonel Guderian, and this time the Minister of Defense did not appear. It is enough to have Guderian. Since the basic design of the new tank has been determined, the most important purpose of this coordination meeting is to subcontract the subsystems of the new tank and put different enterprises in charge. Of course, how to subcontract, the most important thing is to determine by the Dragon Soul Ordnance, and Guderian is responsible for reviewing. The subcontractor should also confirm that it can complete the development task of the subsystem according to the development node.

As soon as all the people from the company attending the meeting arrived, Guderian said loudly: "Ladies and gentlemen, today is the day of the coordination meeting for the development of new tanks organized by our German Ministry of Defense, and I am very happy to preside over this meeting on behalf of the Ministry of Defense. To introduce myself, the contemptible name is Guderian, who is currently a lieutenant colonel battalion commander in the German armored corps battalion and a member of the armored committee of the German Ministry of Defense. At the tank bidding meeting a few days ago, the Dragon Soul Ordnance Consortium won the development project of China's 15-ton light tank and 30-ton medium tank with an absolute advantage. Maybe there are other companies who think, why can't we get recognized because our solutions are also very good? But this is the case, the tank design scheme of the Dragon Soul Ordnance Consortium greatly exceeds the scheme designed by other companies in terms of design concept and advancement, which is the most important reason why we chose the Dragon Soul Ordnance Complex as the general design unit and general contractor. What our country's armored forces need is a tank that can lead the world's advanced level for ten or even twenty years, and the plan of the Dragon Soul Ordnance Complex has indeed greatly exceeded this era! Although the difficulty of development has greatly increased, we still choose to believe in Dragon Soul Ordnance and other subcontractors! I believe that you can work together to create two of the world's most advanced tanks, so that our German armored forces can overwhelm the most powerful armored forces in the world with absolute technological superiority! ”

As soon as Guderian's words fell, the participants of various companies in the conference room were also encouraged by his words and applauded enthusiastically! Guderian's words are indeed very inflammatory, which is somewhat similar to Hitler's style. (To be continued.) )