The original Yangtze River 750 had only 22 horsepower, which was later upgraded to 24 horsepower, and then a 32 horsepower engine appeared. Considering the size of the latter two engines, generally speaking, the 24-horsepower engine is paired with the Yangtze River 750, and the 32-horsepower engine is paired with the Xiangjiang 750.

However, for a 746cc displacement engine, it can only output this amount of horsepower, which is too small! If modern technology is used to modify it, it is not a problem to double the power of the engine.

The seventy-horsepower engine is better for the partial.

"Mr. Qin, can you help us increase the power of the engine?"

Well, make an opinion yourself, and then it becomes your own task? Qin Feng shook his head: "This kind of power upgrade is the most suitable to be handed over to the original manufacturer, and our Pingwang Motorcycle Factory has not built this kind of horizontally opposed engine, we are not professional enough." ”

"But you're innovative." Yang Lao said: "On the basis of the original 125 motorcycle engine, you quickly came up with a water-cooled engine and a twin-cylinder engine, and none of our domestic motorcycle factories can do it." ”

If the original factory had the ability, it would have been upgraded a long time ago, and for decades, it has produced such a motorcycle, and it has never thought of upgrading.

Qin Feng likes to be biased, but he also knows that this thing is destined to be niche, relying on feelings and beliefs, it cannot support the development and growth of the enterprise, and the output of this kind of car is not high, so it will not be able to obtain enough profits.

"Mr. Qin, isn't your three-wheeled motorcycle also a drive shaft? Wouldn't it be better to use our engine? Seeing Qin Feng hesitate, a leader spoke.

Under the auspices of Qin Feng, the technical innovation of Tianxia three-wheeled motorcycle is very fast, and now the transmission shaft has been obtained, avoiding the defects of chain transmission, but because the existing motorcycle is modified, the arrangement of the transmission shaft is left, and the two half shafts behind are asymmetrical, short on the left and long on the right.

If the horizontally opposed engine of the Yangtze River 750 is used, the transmission shaft is in the middle and to the back, whether it is a partial or three-wheeler, you can get the best power output scheme.

Why don't you drive this engine yourself? In fact, it is not too difficult to increase the power of the engine of the Yangtze River 750, as long as the compression ratio is increased, the difference between 24 and 32 horsepower is the difference between the compression ratio of 6 and 7.

Wait, you can't be fooled, you can't be fooled by these leaders!

Qin Feng suddenly reacted again.

Three-wheeled motorcycles for families, the main thing is to save fuel, they use 125 engines, there are only two or three oils per 100 kilometers, and with this Yangtze River 750, there are more than ten oils per 100 kilometers, and the power is still excessive.

"We can't use such a big engine on our tuk-wheeler." Qin Feng continued to deny it.

Seeing Qin Feng's refusal to grind like this, Boss Yang raised his face: "Then what are you doing here with us?" ”

You called me! Or I'll go and do something else, I'm still busy.

Qin Feng could only complain in his heart, but he didn't dare to say it, he looked at these leaders who were full of expectations, and suddenly thought of something: "I'm here to report to the leaders about our plan to fly a motorcycle." ”

"Can a motorcycle still fly?"

"Yes." Qin Feng said: "After our Tianxia three-wheeled motorcycle is upgraded, it will be able to fly in the sky, and we call it the air triple jumper." ”

"Okay, there's something interesting about this thing." Yang Lao said: "Let's go, enter the conference room, can you tell us more specifically?" ”

"Yes."

In the conference room, Qin Feng took chalk and quickly drew on the small blackboard.

"Our three-jumper in the air is actually a gyroplane." Qin Feng said: "It has a propeller at the top, a propeller at the tail, an engine at the back, and a three-person cabin in front, this kind of air triple jumper is small in shape, and the cost can be controlled within 50,000 yuan, after special treatment, the noise is about ...... and motorcycle."

"It's a lot like a helicopter!" There is a leader who speaks.

The helicopter also has a propeller at the top and a propeller at the tail, but the propeller at the tail of the helicopter is on the side, while the propeller of this gyrocopter is at the rear, and the technical principle of the two is different.

The propeller on the top of the helicopter is connected to the engine, whether it is vertical take-off and landing or forward flight, it is powered by this top propeller, and the tail propeller is on the side to balance the reaction force of the top propeller.

Although the top of the gyroplane also has a propeller, it is not connected to the power, the power is in the tail, driving the propeller, allowing the gyroplane to fly forward, and then the propeller at the top will rotate under the action of the air flow, and then it can provide the lift required for flight.

This design has good safety, for example, if the engine fails, the gyroplane can continue to fly forward by inertia, but at a slower speed and at a lower altitude.

In this way, the pilot can also operate it to find a suitable place to land.

Even without horizontal speed, the rotors can act like a parachute, allowing the plane to land slowly.

Qin Feng explained like this, and the big guys understood.

"However, since this air triple jumper is so good, why hasn't it become popular in the world?" Elder Yang asked, "There are a lot of conventional helicopters. ”

"Because it needs a runway for take-off and landing." Qin Feng said: "What is the use of a helicopter? It can take off and land vertically, and there is no need for a runway, so gyroplanes are not popular. ”

If you need a runway, you have to compare it with fixed-wing aircraft, rotary-wing aircraft, vertical take-off and landing, and it doesn't have this ability.

"And you're going to make something like this?"

"It only needs a twenty-meter runway to fly." Qin Feng said: "There is no professional runway, as long as it is a flat road, even if it is a dirt road in the countryside. ”

If you need a runway, it depends on how long it needs to be, if it's only 20 meters, you can find it in many occasions.

"Well, if that's the case, the impact won't be too big, how long will it take you to figure it out?"

"When I come back, I need to go to Capital University of Aeronautics and Astronautics and find them to do it together."

Although it is called three jumpers in the air, flying motorcycles, as long as it goes to the sky, it is necessary to find aerospace professionals to design, and it is not possible to rely on those who play motorcycles in their own hands.

However, at the beginning, he had promised a huge motorcycle that could fly, and promised him something, then he must do it, this thing has a great future, field exploration, personal flight, etc., can be bought and used, and mountain fire patrols and the like are also good, after all, the price is cheaper than the Cherokee, in addition to personal use, it can also be exported in large quantities.

Our Pacific Group is a representative of advanced technology!

"Yes, Xiao Qin still has a lot of things to do, you go and get busy, and I'll talk about it when I get back." Elder Yang nodded.

Looking at Elder Yang's attitude, Qin Feng was speechless, you also know that I have a lot of things to do, so I've been nagging here for so long, isn't it a delay.

When Qin Feng left, Yang Lao's eyes looked at the picture on the blackboard again, looked at it for a while, and asked the person next to him, "Lao Wang, do you think this thing is useful?" ”

"Yes! This thing will not make a loud sound like a helicopter, and it can fly hundreds of kilometers, and when the time comes, take off from our coastline, it can easily fly to the opposite side, as the first wave of power, it can quickly occupy various important places, even if it is just to cut their transmission lines, it can also play a huge role. ”

"Yes, I think so too, next, let's find a few experts from Capital University of Aeronautics and Astronautics to come over, demonstrate, see if this project is successful, and when he comes back, he can officially put into research and development."

"That's right, the Capital University of Aeronautics and Astronautics will provide technology, and they will pay for it, so that our troops can obtain an excellent weapon for special operations without investing in research and development funds."

"Hmm."

Qin Feng didn't know what these big leaders were calculating, he looked at the time, he couldn't go to Jincheng, so he could only make a phone call to ask about the progress, and arranged some things, and the day passed.

That same evening.

In the courtyard, the wide Simmons bed emitted a rhythmic trembling sound, and after a long time, the sound gradually stopped.

"Brother Feng, how many days are you going to leave this time?"

"It shouldn't be too long, just pick up the goods and assemble them." Qin Feng said: "If it's fast, you can come back in three or five days." ”

"Oh."

"What, don't worry about your brother Feng?" Qin Feng looked at his wife in his arms: "The public grain has been delivered, besides, I don't like the color over there." ”

"Hey, what are you doing? Wake up the sleeping beast again? ”

The next day, Capital International Airport.

By the time Qin Feng arrived, there were already people who had already arrived in advance.

This time, counting Qin Feng, there are a total of ten people, except for Qin Feng, they are all experts and technicians.

Zheng Ming, who was responsible for leading the team, had already dealt with Qin Feng, and when he saw Qin Feng coming, he immediately greeted him warmly and began to introduce: "Come, Mr. Qin, let me introduce you to these friends who are traveling with you, this old Song is from Chengdu." ”

Looking at the gray-haired old man, Qin Feng was very respectful: "Old Song, it's a pleasure to meet you, wait on the plane, let's sit together, it just so happens that I have some academic questions to discuss with you." ”

Song Lao, the chief designer of Jianten! The previous domestic aircraft, are all imitations of the MiG aircraft, only from the J-10, the East has independent research and development products, began to take its own unique path, to the J-20, is to soar into the sky, become the world's only two twin-engine heavy stealth aircraft.

For Song Lao, Qin Feng not only worshipped, but also worshipped.

"Okay."

"This is Lao Liang, who came from the Demon Capital." Zheng Ming continued.

Liang Lao, the chief designer of the Hongqi-61, this is the first semi-active radar-guided surface-to-air missile developed by the East, because the technical requirements are too high, it has not been able to mature for many years, and there are still a lot of technical problems to be solved.

MiG-29, Sam-6, these are the weapons and equipment that the East desperately needs! Although Mr. Qin didn't bring things back to China, it was the same if he could get in touch with them abroad, and it was a big deal to live abroad for three or five months, or even a year and a half.

Everyone said hello and got on the plane, Qin Feng and Song Lao sat together, talking about the idea of the rotorcraft, originally wanted to find the University of Aeronautics and Astronautics to help, but now that he is traveling with Song Lao, of course he has to take advantage of this opportunity.

"Mr. Qin, the overall design is still good, but if you want to fly and can take three people, the power of this engine must be enough, at least more than 100 horsepower." Song Lao began to analyze: "It is best to reach about 140 horsepower, and the engine of your motorcycle is estimated to be enough." ”

Even a flying triple jumper needs plenty of power!

"Car engines are not easy to use, after all, the general car engines are water-cooled, the weight is relatively large, the problem of heat dissipation in the sky is easy to solve, air-cooled, but now, there is no suitable aviation piston engine in China, after all, the era of piston engines has passed, we are decades ago, high fuel consumption, power is more than 300 horsepower."

During World War II, the piston engine reached its peak, before the start of World War II, the power of the engine was still hovering at two or three hundred horsepower, and by the end of World War II, two or three thousand horsepower air-cooled engines emerged in an endless stream.

However, when the turbine engine appeared, the piston engine was quickly eliminated, and even a small trainer aircraft was stuffed with a turbine engine behind the propeller.

Therefore, if Qin Feng wants to build this kind of flying triple jumper, he has to solve the problem of the engine.

"In other words, we have to develop the engine ourselves?"

"Yes."

Before being reborn, Qin Feng saw this kind of aerial triple jumper for the first time at the military parade, and when he saw three heavily armed soldiers sitting in such a cute flying machine with serious expressions, he felt very funny, and then he learned about it, and later, he flew a few times, this thing is not only military, but also very suitable for civilian use, and it is easy to drive, just learn for a day.

Therefore, after coming here, when he was fooling Dawei Dawei, he proposed the air motorcycle and let the motorcycle fly into the sky, but he didn't expect that there were still many problems.

How to solve the engine? It takes seven 250 engines!

Wait a minute!

Qin Feng suddenly remembered what happened yesterday, and the leaders looked at him with expectant eyes, hoping that he would make a new partial nephew to meet the needs of the troops, but he refused.

At that time, he once said that the engine of the Yangtze River 750 motorcycle has the opportunity to increase the power to 70 horsepower! If this is the case, then only two Yangtze River 750 engines need to be connected in series, which is enough for 140 horsepower!

If you want to play three jumpers in the air, you have to solve the problem of the engine first, it seems that there is no other choice, grit your teeth and improve the power of the Yangtze River 750 engine!

The passenger plane landed in Sudan, Mulatu was already waiting for the big guy in Sudan, a pleasantry, everyone took a pickup truck from Sudan, tossed all the way, and finally arrived at the port of Massawa in the early morning of the next day, just in time.

In fact, the largest port in Eritrea is the port of Assab in the south, which is directly connected by the railway line, but because it is very large, it is crowded with people, and the port of Massawa in the north is relatively quiet, and it is not easy to leak secrets when loading and unloading goods here.

The bearded Captain Nikolai was already running this route for the second time, and when the ship docked, he came down with the crew.

"Mr. Qin, the goods are here, what about the freight?"

"The shipping costs are all ready." Qin Feng gestured to Muratu beside him, and the assistant brought by Muratu handed over the prepared suitcase.

Nikolai looked at the green coin inside and was very satisfied.

"Mr. Qin, doing business with you is really refreshing, if there are other goods that need to be transported in the future, you can contact us!"

Zaitsev walked out with his men behind him.

"Mr. Qin, we're here!"

"Welcome to Africa." Qin Feng said: "I have some small greeting gifts here for you. ”

Qin Feng took out a few small square boxes from his pocket and distributed them to Lao Maozi, who came to work in Africa.

Zaitsev took it, opened it and saw that under the light of the harbor, it was shining brightly.

Yellow Gold Rings!

Mr. Qin really had enough entrenchment, and prepared a gold ring for each of them!

The gold mine is also on the right track, Qin Feng has gold, and taking out some of it as a gift can make these people grateful.

"Please rest assured, Mr. Qin, we will work hard here, by the way, we also brought you a gift." Zaitsev was very moved, the last time he gave a gold watch, this time he gave a gold ring, it was so interesting, of course they had to give a gift to Mr. Qin.

Last time, Qin Feng said that if it is possible, ask them to get something advanced, Qin Feng can pretend to be a force, this small request, of course, can be satisfied.

As he spoke, the vehicle had already begun to drive out of it.

Radar vehicles, launch vehicles, command vehicles...... These are all on tracked chassis, one after the other.

Mulatu looked at the cars that came out of it, his eyes were full of excitement, these cars are not expensive, but they can solve the much-needed air defense problem, spend less money, and do great things, thanks to Qin!

The tracked vehicle drove out, and then there was the wheeled vehicle, Lao Maozi was still interesting enough, saying that it was the equipment of two regiments, that is, two regiments, and there were a lot of cars!

These wheeled trucks are designed to carry missiles, and three SAM-6 anti-aircraft missiles can be mounted at an angle behind one vehicle, and if there are special circumstances, they can also be used as temporary launchers to launch directly from above.

These trucks have a rugged old hairy style, all of them are single-tire, all-wheel drive, these cars are given to the sunspots, some of them are wasted, do you want to fool the sunspots to use these cars in the mines?

When Qin Feng was thinking, another truck drove out of it, and instead of the SAM-6 missile diagonally upward, it was carrying a large cylinder.

Because that cylinder was too long, it also stretched out the body for two or three meters, and when he saw this thing, Qin Feng's eyes widened, could this thing be a ......

"Mr. Qin, didn't you say that you wanted to be an advanced Sky Monkey at that time? This is the most advanced we have access to, codenamed 5v55rud. Zaitsev said.