Inheriting this guy's consistent characteristics of entering Baoshan and not returning empty-handed, after negotiating the general framework of this cooperation with Zhang Lan, this guy once again had no guests in Zhang Lan's house consciously searched, and after taking away a bag of good tea and two bottles of good wine, he left satisfied.

Even when he was leaving, this guy was not stable, and when he walked to the gate, he turned his head and winked at Zhang Lan and Mo Liyan, "That, eldest nephew and niece and daughter-in-law, uncle won't delay your good deeds, you go back, hurry up, what to do and continue to do." ”

No way! Where is the leader of an army, it's simply the obscene and unscrupulous uncle in the neighbor's house! Zhang Lan groaned helplessly, how could she meet such a living uncle?

As for our Commander Wang's driver and two guards, they had already twisted their heads to the side when Commander Wang began to speak, and they couldn't bear to look at them: It's too embarrassing! With such a half-army commander who has no integrity, he is known by his peers, where will his face go? If you spread it, you can probably be laughed at by those bunnies.

"Well, why don't we go back and continue?" Looking at Commander Wang's car that was gradually moving away, Zhang Lan looked at Mo Liyan and smiled evilly.

"Who's going to go back with you to continue, scoundrel, I'm going home!" Mo Liyan, who was originally called his nephew and daughter-in-law by Commander Wang, and whose little face was already red with shame, heard Zhang Lan's words, and could bear it, stepped forward and kicked Zhang Lan twice, and ran away without looking back - he deserved it! Even if people really have the intention of going back with you to continue, but when you say this, how can a little girl with such a thin face be able to pull down this face? The kick is light, and not hitting you on the head with a big stick is considered to give you a lot of face.

This girl is really ruthless! Zhang Lan grinned and squatted down and rubbed the calf that had been kicked twice by Mo Liyan: It was not a coincidence, but she was kicked to the calf by this girl, and it really hurt.

When the pain on the ground in her leg was slightly reduced, Zhang Lan raised her head and looked: sweat! Mo Liyan, this little girl has already run away and disappeared. This girl's movements are really swift. At this speed, it is not a problem to challenge the flying Johnson!

Shaking his head, it's still important to get down to business.

The durability of the quasi-racing class A-class engine far exceeds that of ordinary civilian engines, to be honest, Zhang Lan really has no bottom in his heart about whether his company can make such an engine.

Even for the off-road vehicles that participated in the Dakar Rally in China, all the vehicles used for the competition were specially strengthened by the joint venture car factory for the team. But this is not enough, all these participating models need to be sent abroad, and the whole car will be modified and strengthened in every place in the mainland by professional top racing car modification companies abroad. The process of modification and the materials used for the accessories. These top foreign car modification manufacturers will never let you know, and every accessory is expensive to death, even if Lu Ningjun these drivers have undergone "light" modification models, the modification price is more than millions, without the corresponding economic ability, absolutely can not afford to play professional racing.

Of course, the performance of the motorcycle racing engine designed by the company's racing department is very good, but there are still some problems that have not been solved in the automobile racing engine.

I thought about it seriously. The "Falcon" light high-speed fire assault vehicle uses a 94-horsepower ground-cooled air-cooled engine, two-wheel drive, manual transmission with four forward gears and one reverse gear, and a maximum speed of 128.7 kilometers per hour. From this data, it is still slightly worse than a professional racing engine, because even in a difficult environment such as the Dakar Rally, the average speed of the car exceeds 150 kilometers per hour, pay attention. This is average, which means that for quite some time, these cars have been traveling at speeds of more than 150 km/h. The maximum speed of the Hayabusa high-speed assault vehicle is less than 129 kilometers per hour.

But thinking about the air-cooled engine used on the "Falcon" high-speed firepower assault vehicle, Zhang Lan frowned again: The air-cooled engine is naturally much better than the water-cooled ground engine when fighting. In the fierce battlefield environment, a water-cooled engine is used. Just one carelessly. The radiator or radiator is broken, and the cooling system cannot provide sufficient heat dissipation capacity for the car. The car is considered scrapped. On the other hand, the water-cooled engine floor radiator is installed directly in front of the car, which is the most likely place to be hit. Air-cooled engines, however, do not have this problem. Because of the use of air cooling, the risk of the engine hanging up due to cooling system problems is greatly reduced, which is a huge advantage in the fierce battlefield, which brings another advantage is that the air-cooled engine does not need a complex water circulation cooling system, which naturally saves a large part of the weight, which is equivalent to indirectly improving the performance of the whole car.

If you think about your company, it seems that none of the steam engines are air-cooled, all of them are water-cooled. \\\\\\ Zhang Lan smiled bitterly: The advantages of this engine in the civilian field have now become a problem.

It's a really difficult question. Could it be that for the needs of such a few cars, it is impossible to develop an air-cooled engine by yourself? I really want to slap myself twice: even a loser doesn't use such a loser!

Think about some data of the "Falcon" assault vehicle: the continuous driving distance is 514.9 kilometers, which is about the same as the mileage of the average car; plus the auxiliary fuel tank can reach 960 kilometers, well, just an auxiliary fuel tank, this problem is not big; it only takes 4 seconds to accelerate from 0 to 48 kilometers per hour, it can go up 60% of the slopes, and it can travel at a speed of 88 kilometers per hour on 5% of the ramps, thus ensuring that the car has high mobility in various complex terrains, well, this aspect, High demands are placed on the output of engine torque. Overall, compared to a professional racing engine, this is an engine with low horsepower but high torque output, strong mechanical strength and environmental adaptability.

The requirements for horsepower are not very high, but they require strong torque output, Zhang Lan frowned and thought, how to solve such a problem? Also ask for air cooling, air cooling? Isn't the company's heavy-duty Prince Cruiser an air-cooled engine? In the Prince car with a displacement of less than 1400 cc, it is all equipped with a V-twin air-cooled engine! ,

Isn't the V-twin engine loved by Americans for its unique feature of strong torque output? The V-twin engine with a displacement of more than 1200 ml has a power of more than 100 horsepower, compared with the four-cylinder air-cooled engine used in the "Falcon" high-speed assault vehicle, the V-twin motorcycle engine has its own unique advantages in terms of power and torque output!

Zhang Lan was happy, this is really a good idea! But in the blink of an eye, I began to be depressed again: yes, the V-twin engine is good, but compared to the safer design of the engine's built-in cylinders on the "Falcon" high-speed assault vehicle, the two huge cylinders of the V-twin engine are also depressing. Although the engine of the "Falcon" high-speed assault vehicle was also exposed in order to reduce the weight of the body, after all, the cylinders were not exposed.

Well, that's not right! Zhang Lan suddenly found that there was a problem in his thinking: the biggest feature of a high-speed assault vehicle is: fast! Even for the sake of speed, all the things that can be omitted from the car are omitted, not only is there no canopy on the car, but even the engine is exposed; I have seen that the simplified design of the car body mostly adopts a tubular truss structure, which is not only lighter, but also can make the car run faster! As for the armor thing, don't want to see it in this type of car. Didn't you see that in order to reduce the weight of the body, even the front windshield was not equipped, and in order to prevent wind and dust and blow damage, the commandos all adopted the costumes of goggles and hoods. Not to mention bulletproof glass.

In general, this thing is similar to a go-kart that can be used in complex conditions!

Under such conditions, is there much difference between the V-twin engine, which was also shot, and the four-cylinder air-cooled engine equipped on the "Falcon" high-speed attack assault vehicle?

Thinking of this, Zhang Lan finally put his mind at ease, and already had an idea in his heart: if the cylinder is exposed, it will be exposed, anyway, compared to the "Falcon" high-speed fire assault vehicle that is also exposed, no matter what kind of engine, as long as it is shot, the end will be almost the same, basically scrapped!

As for the continuous use of the engine, this is not the main problem, the engine of the cruising prince car was originally designed for long-term high-speed driving, and the problem of long-term high-speed operation of the engine was taken into account at the beginning of the design. What is cruising called? Cruising means being able to travel at a high speed for a long time. Compared with the engine used on the US military's "Falcon" assault vehicle, the V-twin engine also has a great advantage: it is lighter! And compared to the four-cylinder engine built into the engine, the V-twin engine with the exposed cylinders is better at heat dissipation!

Less weight, but with better power performance and better heat dissipation, it means that the car has better power performance and maneuverability.

Zhang Lan was originally a little skeptical about why the US Marine Corps did not think of it earlier, but after a little thought, he was able to figure it out: When was the time to design the "Falcon" high-speed fire assault vehicle? At least in the early eighties, when the maximum displacement of the air-cooled V-twin engine was only about 750 milliliters, and the maximum power was only fifty or sixty horsepower.

PS: Everyone, the fourth watch is still yesterday! That,Hehe,Tongtong is cheeky and asks for a monthly pass again.,Aren't you annoyed??

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