Realizing this, Director Xie was immediately excited: We can't get the detailed information of the US special assault vehicle, but on the other hand, the information of the Beetle car is not so difficult.

"The chassis skills of the Beetle? Well, there is such a saying, it is said that the special assault vehicle of the Americans was developed on the chassis of the Beetle, but in order to meet the needs of the special operation, a lot of changes and enhancements have been made. Director Xie nodded quietly, "But what does this have to do with this special assault vehicle you guys?" ”

Of course, he can't admit that he doesn't know the way, although he doesn't know the way, but it doesn't matter, since Lin Hongfei can say this, it must be reasonable, not to mention that Director Xie is not wrong...... From civilian to military, especially for special forces, can it be strengthened and modified without effort?

"Coincidentally, I happen to know the chassis structure of the Beetle, Uncle Xie, you also know the Tatle, I am a little accomplished in the engine and the car, and then I wondered, can I use the chassis of the existing Beetle car to strengthen and improve, and design a special assault vehicle that meets the needs of the military?"

Lin Hongfei said modestly, but looking at this girl's expression, it is really immodest to be immodest, "It's also a coincidence, the process is quite smooth, I think after my improvement, the chassis of this car should basically be able to meet the requirements of the army's special operations...... Of course, this is only the result of paper calculations, and in reality, we will definitely need the comrades in the army to help us do the actual test. ”

Lin Hongfei said this, and Director Xie didn't bother to investigate the truth of this. The important thing is that Lin Hongfei really took out these things, although I don't know how Lin Hongfei knew these things of Lu Dao, but what does it matter? As for whether Lin Hongfei has become a spy for some countries, this joke is a big joke, is it really good-looking for you to be the country's intelligence agency? Lin Hongfei's family background and all past information have already been turned over by the intelligence department seventeen or eighteen times.

And what Lin Hongfei said made Director Xie more and more interested. "Oh? Mr. Lin, do you understand the special tactical needs of special forces for special assault vehicles? ”

"I can't say I understand, I can only say that I saw others summarize something," Lin Hongfei said very modestly. "I have heard in some special operations textbooks in American schools that in view of their own characteristics and the special requirements of the tasks they perform, special forces must be able to carry out independent operations with maximum tactical mobility. That is, it is necessary to have the right to choose weapons and equipment according to operational needs. In addition, special forces must be at the call to operate in geographical areas with different climatic conditions and terrain characteristics. and must be able to independently perform the following tasks: reconnaissance from a distance, identification and determination of enemy positions and troop concentrations; Penetrate deep into positions behind enemy lines, select ambush points and destroy important tactical and strategic targets; attacking enemy supply lines in depth; designation of important targets for precision-guided bombs; Rescuing and relocating own combatants or civilians from dangerous areas. ”

"These are some operational instructions about special forces in the textbooks of military schools in the United States, for which standard light military trucks are clearly not up to the task, and only the corresponding transport vehicles can be used to complete the tasks. These missions have special requirements for maneuverability on and off highways, rapid crew access, weight of weapons and equipment, and a variety of devices and equipment to sustain long-term combat missions over medium and long distances. After a pause, Lin Hongfei added, "The lessons of the first large-scale use of special forces vehicles in the "Desert Storm" operation fully prove this. ”…,

This moment. The relaxed expression on Director Xie's face before disappeared without a trace, and was replaced by a look of shock! The reason is very simple, some of the words Lin Hongfei said, some of which he didn't even expect or even didn't know!

Director Xie never believed that there was a so-called super genius in this world, in Director Xie's opinion. Those so-called geniuses are nothing more than being more diligent than others, and at the same time doing the same thing in a certain way, but at this moment, the persistence in Director Xie's heart couldn't help but waver: If there is no genius in this world, how can the young man in front of him explain it? What he just said. Even for myself, it has a great enlightening effect.

In fact, it is not only Director Xie, but Lin Weiguo, his face is also shocked at this moment, he is racking his brains for how to build a powerful special forces for a while, he never thought that his son as a leader of a state-owned enterprise, his understanding of special forces is much deeper than his own!

Evil spirits! Director Xie and Lin Weiguo both had such an impression flashing in their minds at the same time.

Director Xie was the first to react, and shook his head with a wry smile, "My old Xie has been a soldier for most of his life, but I didn't expect that he didn't know as much as Xiaolin, but listening to you say this, I have more confidence in our next cooperation...... But Kobayashi, what do you want to do to design this special assault vehicle like this? Wouldn't it be better to design the kind of enclosed cockpit with a heavy machine gun mount on top, similar to that of a Humvee military vehicle? ”

This point, in fact, is also the most puzzling place for domestic military vehicle manufacturers and designers, for what is basically all tactical assault vehicles using this open structure?

"Because this open steel frame structure is actually the structure that can give full play to the combat power of special forces, the steel frame is welded with high-quality high-strength alloy materials. With this design, the tactical assault vehicle can be made smaller, lighter, and more durable, without the need for complex and expensive manufacturing equipment. The open steel frame structure carries all the mechanical components and is integrated with the tumbling guard. In many cases, the rollover guard can also be used to carry personnel, or as a mounting platform for weapons and equipment, while the length, width and height of the vehicle are strictly limited, and even the upper part of some vehicle guards can be folded or disassembled to facilitate airdrops and airlifts. ”

Speaking of this, Lin Hongfei couldn't help but shake his head, "Our domestic design ideas." Well...... I think everyone seems to be stuck in the point of how the vehicle can better protect the occupants of the vehicle, but in my opinion, this is contrary to the high mobility emphasized by the special forces, not to mention, in terms of protection capabilities, light armored vehicles can hardly block the 12.7mm heavy machine gun bullet at close range, and are hit by a 12.7mm heavy machine gun bullet. The effect of whether there is protection or not is almost the same, but the sequelae of the car's maneuverability is greatly reduced, which is measured comprehensively. It is better to give up protection in exchange for high mobility and more material carrying capacity. If necessary, dress the special forces members in the car in high-performance body armor. It is also a good idea to insert detachable protective inserts on both sides of the car and important structural parts of the vehicle chassis. ”

There is still such an idea of not equipping the car with any external protective equipment and equipping the combat personnel with body armor according to operational needs? Director Xie couldn't help but pat his head: Damn, empiricism and inertial thinking kill people! That's right! Tactical assault vehicles are flanked by storage baskets carrying ammunition, fuel and other items. There are also some vehicles on both sides and the floor of the vehicle using protective inserts to improve the survivability of the vehicle, why didn't Lao Tzu think of this? …,

However, Director Xie did not know that the practice of inserting protective plates on both sides of the body of the car was not popular, because it could easily reduce the overall performance of the vehicle. The open steel frame construction ensures easy access for occupants, even when wearing body armor. The spring-loaded seat is ergonomically designed to help reduce the fatigue of the crew during prolonged combat missions.

But for the combat vehicles themselves. The weight savings allow the tactical assault vehicle to have a larger payload capacity to carry weapons, ammunition, water, food, and other items needed for long missions. Director Xie is also in charge of logistics and equipment, so he naturally knows that according to the results of Colonel Lin's troop experiments, in order to meet the requirements of mobility. The weight of the tactical assault vehicle is about 1000-1400 kg, the carrying capacity is generally 500-700 kg, and the load of the whole vehicle is generally 0.45 for the best, but unfortunately, there is no car that can meet this requirement in China for the time being.

"I see, that's the truth." Director Xie was very embarrassed to ask, listening to what Lin Hongfei said, he thought for a moment, and nodded seriously, "There is another question, as far as I know, the power used by the special assault vehicles equipped by the Americans is still a 95-horsepower air-cooled gasoline engine, is it a last resort or a ...... for you to use this water-cooled engine you invented?"

"In terms of power, the power plant of the early tactical assault vehicle is a standard automobile four-stroke air-cooled engine, and we do use the in-line four-cylinder gasoline engine in the laboratory, but it is not a last resort, if the military really has this demand, we can design an air-cooled gasoline engine for the military to ensure that the power can meet the needs of the military, but I personally believe that later, from the logistics, security, economy and operational scope and other aspects, Liquid-cooled engines are much more adaptable than air-cooled engines. ”

In fact, there is another point that Lin Hongfei did not say, that is, with the continuous in-depth understanding of the concept of special operations by all parties, not only the air-cooled engine is not used, but the liquid-cooled gasoline engine is gradually abandoned by all parties, but the diesel engine is gradually adopted. The latest tactical assault vehicles are equipped with a turbocharged diesel engine, which allows it to reach 50 kW/t per unit power and reduce fuel consumption, but this is not the most important thing, the most important thing is the huge increase in torque...... Compared with the output power, special operations vehicles actually pay more attention to the output of torque.

After a little contemplation, Director Xie had to nod and admit that what Lin Hongfei said made sense, that's right, the Americans are now using air-cooled gasoline engines on their special assault vehicles, but it does not mean that air-cooled engines are the best power choice for special assault vehicles, relatively speaking, liquid-cooled engines are more adaptable...... For air-cooled engines, it is good to say in temperate and subarctic regions, but what about in the tropics and subtropics? What about in the hot desert regions? Is it still possible to work continuously under harsh conditions for a long time? For air-cooled engines, this is a huge test, but comparatively speaking, liquid-cooled engines work much better.

"By the way, for the special needs of the army, we have also made special adjustments to the engine and gearbox to reduce the power output. More emphasis is placed on high torque and high torque output at low speeds, and there is a corresponding tilt in the choice of materials...... Of course, if the military can really take a fancy to our machine, I believe that there will definitely be someone to contact us about these problems at that time. Lin Hongfei said with a smile.

"Hearing what Mr. Lin said, I'm really more interested in your car," Director Xie nodded and glanced at Lin Weiguo. said, "Mr. Lin, what about the other data and characteristics of this car." Can you tell us about it? ”…,

Although the old man was vague about the identity and position of Director Xie, the more this was the case, the more Lin Hongfei, who was born in a military family, understood. This action itself is even more illustrative of a lot of problems, and now listening to Director Xie's interest in this car, his spirit was suddenly shocked, and he said, "Of course, it should be, the main fuel tank capacity of this car is 90 liters, which can meet the driving requirements of 500 kilometers on difficult terrain under the combat conditions of full load." In addition, the vehicle is equipped with a fuel tank and a 19-litre flat oil drum. If necessary, it can also meet the needs of longer distances; ”

In addition, the car uses a five-speed manual mechanical transmission, 4X4 all-wheel drive mode, and an independent suspension system. The front axle is equipped with a fixed double-wishing suspension with coil springs and longitudinal torsion bars, and the rear axle is equipped with a pull arm with coil springs and transverse torsion bars, which can lead to higher travel speeds, greater adaptability and relatively more comfortable occupant operation. ”

"Independent suspension, huh?" Hearing this, Director Xie frowned. "Can there be a good effect of leaf spring shock absorption? The simpler the machine, the more reliable it is. ”

Yes, in Director Xie's opinion, the 4X4 all-wheel drive mode is of course necessary, but isn't the independent suspension a bit misnamed? It should be that the leaf spring shock absorber on the Jeep is more durable, right? As Director Xie, who has a strong affection for the 212 Jeep, his feelings for the shock absorption system on the Jeep are not ordinarily deep.

"This shock absorption and suspension system is still very good, I personally think it is better than leaf spring shock absorption, and the reliability is almost the same," just Director Xie's words, Lin Hongfei is not good to say, "But we can provide leaf spring shock absorption models for you to test, if you think leaf spring shock absorption is more suitable, then you can also." ”

Listen to Lin Hongfei say this. Director Xie thought for a moment and nodded, "Comparative test?" This is a good solution...... Well, what about the others? What else? ”

"The car also has a maximum road speed of 120 km/h, can climb a 54-degree slope, and can roll more than 36 degrees due to the wide wheel base and low center of gravity. In the case of no wading preparation, the standard wading depth is 500~700 mm, which is good in terms of off-road ability and passability," Speaking of this, Lin Hongfei became more and more helpless, "Also, if possible, we hope that you can coordinate some military off-road tires for us?" At present, the tires installed on this car are not special tires, which have a greater impact on performance. ”

Tactical assault vehicles usually use off-road tires, which have a mobility index (MMP) of 2400 for a 4×4 wheeled tactical assault vehicle with a combat total weight of 210 kg. But

Director Xie is very satisfied with the speed of the car, and for a battlefield vehicle, the maximum speed of 120 kilometers is enough.

There are tactical assault vehicles that can travel at speeds of up to 150 km/h on the road, and even more. But in Lin Hongfei's opinion, such a high highway driving speed has no effect at all except to make his data look better, because from the perspective of the tasks performed by the special forces, such a high speed is not practical, and the requirements for the road surface are too high.

On the contrary, the speed of 110-120 km/h is more reasonable, and instead of focusing on speed, it is better to focus on some more important indicators, such as climbing, inclination and wading depth, etc., relatively speaking, these parameters provided by Lin Hongfei made Director Xie very satisfied.

However, Lin Hongfei mentioned the problem of tires, Director Xie hesitated, or nodded, the importance of tires for a car can not be ignored, the reason is very simple, any car, and the ground contact is tires, especially military vehicles, tires have many special requirements that civilian tires do not have, "tires? This is possible, but we can only provide a set of tires at a time, if there are broken tires to replace with new ones, you must apply to us, and each tire has a record. ”…,

Can you provide tires? Lin Hongfei was overjoyed! Before this, he was most worried about tires, without a set of good tires, everything else was empty talk, as for the other conditions mentioned by Director Xie, they were not put in Lin Hongfei's eyes at all: the army's high degree of discipline in the use of military materials, would buddy not know the way?

"It's a pity that I don't have qualified aviation aluminum here, if it is made of aviation aluminum, the weight of this car can be reduced by at least 200 kilograms, which is even more ideal." Solving this problem, Lin Hongfei sighed, and couldn't help but feel a little longing in his heart.

How could Lin Weiguo not understand the implication in his son's words, and couldn't help but glance at his son, "Aviation aluminum?" You kid don't even think about it! Does that thing cost a ton? Just to save you 200 kilograms? I think you're crazy! ”

"I know that I can't go with you," Lin Hongfei couldn't help but pout, "The special assault vehicle of the U.S. Marine Corps looks like a little pipe frame structure, and it doesn't have much technical content, right?" But the cost of such a car is worth a light armored car! Do you calculate how much my car will cost? Not even half a Santana is less than the price...... Not to mention, you always understand the truth that you get what you pay for, right? 200 kilograms is not much, but if you can save 200 kilograms of weight, distribute these 200 kilograms, carry an extra 100 kilograms of fuel, and at the same time carry an additional 100 kilograms of ammunition and various logistical materials, how much will the combat radius and combat time of the troops be expanded? In this world, the value of military equipment cannot be solved by simple monetary calculations. ”

Lin Weiguo was speechless by his son for a while. In fact, isn't that the case, why is the combat effectiveness of the Mi Army so strong? You can say that they are constantly fighting, an army that is constantly sharpening itself with battles is naturally extremely strong, but the power that supports the Mi army to keep fighting is behind the Mi army's large annual military expenditure and the investment in military equipment, if the Mi army also holds its own "200 kg more, how much can you save with high-performance steel pipes compared with aviation seamless aluminum pipes?!" Will there be the unparalleled combat effectiveness of the Mi Army now? The estimate is very suspenseful.

"What Mr. Lin said makes sense," Director Xie nodded with a smile, "It's just that although the aviation aluminum tube is good, the price is too expensive, I don't think it is better for Mr. Lin to design an engine with better performance and offset the weight of 200 kilograms." ”

I'll go, you're ruthless! Lin Hongfei was convinced, and immediately gave a thumbs up to Director Xie: Sure enough, there is a solution to the problem with the characteristics of the Republic, but don't you know in your heart, Director Xie, that the engine problem has always been a big problem in the development of our country's military industry? If it were so simple to build a good engine, our country's military development and economic development would not have been so painful a long time ago.

…………………………………………

Knowing the general situation of this special assault vehicle, Director Xie and Lin Weiguo were happy to see Hunting, the two glanced at each other, and Lin Weiguo opened his mouth, "Son, where is the key to the car?" I will check the performance of this car for you first, and check it for you. ”

Looking at these two soldiers who wanted to have a car addiction and couldn't wipe their faces, Lin Hongfei couldn't help but want to laugh in his heart, "Isn't the key just inserted on it?" …… Well, I'll tell you, toss lightly, don't let me drive into the ditch, this car is now the property of the company, but not mine. ”

It's just that Lin Hongfei's last sentence was in vain, and before Lin Hongfei finished speaking, the car had already let out a low roar, quickly turned around on the spot, and rushed out of the workshop like lightning. (Your support is my biggest motivation.) )