"Hu Jun, do you think we can arrange the cylinders in a circle around the crankshaft, so that we can install multiple cylinders on one crankshaft?"

"That's interesting, I really haven't thought about it, I don't know if the crankshaft can move, or let's give it a try. Pen, fun, pavilion www. biquge。 info”

"Then give it a try, anyway, we're idle now, maybe it's going to be done."

"Okay, then I'll give it a try." Hu Jun usually likes to ponder, otherwise he would not be able to become a good engine repairer from a car pump. Now that I hear Jiang Tao's idea, I am really interested.

"By the way, I don't see this kind of thing in the field, I guess you have to make the parts yourself, you bring Luneng, he is a good processor, car, planing, milling and proficient."

"Great, I'm wondering what to do with these parts, so I don't have to ask for help." Hu Jun opened his mouth and smiled, he was born in a military and had a good temper with the upright Luneng.

The two walked towards the workshop shoulder to shoulder, and now the rest is Jiang Tao himself and the three Xia brothers. Since the engine matter has chosen to let Hu Jun and Luneng do it, Jiang Tao will no longer worry about the idea of not using suspicious people and employing people, and now the main part of the aircraft is the fuselage and various transmission devices.

The choice of fuselage is mainly the wing part, the fighter jets of various countries have gradually begun to step from the multiplane to the monoplane era, the Japanese Army Aviation in 1930 began to use a new generation of 91 fighter to replace the A type 4 fighter, the type A 4 fighter that has just been eliminated was sent to the northeast for the Northeast Army to use, so Jiang Tao's main opponent in the air is the biplane that has lagged behind a generation, the biggest feature of the biplane is that the turning radius is small, and the low-altitude dog fight is flexible, Jiang Tao estimated that the performance of the engine made by Hu Jun would not be too good, in order to ensure the basic structural strength and increase the lift, Jiang Tao planned to work on flexibility.

"Let's add another layer of wings and get a triplane." Triplanes offer better structural strength and lift than biplanes. Jiang Tao made a suggestion, and the three Xia brothers didn't quite understand the plane, so whatever Jiang Tao said, he would do it. Jiang Tao's main object of imitation was the infamous "Fokker Disaster - Dr.I" The car of the "Red Baron" Manfred von Richthofen, the proud son of the German Air Force during World War I. At that time, Jiang Tao was once a military model enthusiast because of his profession and interest, and he knew the shape and structure of these weapons well. Under his guidance, the Xia brothers quickly fabricated a scaled-down model for large-scale construction. The aircraft's three-tiered wings are configured with decreasing wing area from top to bottom, which ensures that the new aircraft is extremely flexible, making it look more complex and bulky than biplanes, but in fact more agile and lighter. In order to make up for the lack of speed caused by the increase in air resistance caused by the pillars between the multi-layer wings, Jiang Tao modified the airfoil shape of the aircraft and adopted the NACA6A laminar airfoil, which was widely used in high Aspeed aircraft and supersonic aircraft. This airfoil shape is more in line with the aerodynamic characteristics of the lowest pressure point on the airfoil to lean back, in order to lengthen the length of the forward pressure gradient segment, and strive to keep its boundary layer as laminar flow, so as to achieve the purpose of reducing the total friction of the airfoil, so that the speed of the aircraft can be increased.

In addition, since Jiang Tao's triplane has the advantage of climbing speed and flexibility, he formulated an air combat tactic of exchanging altitude for speed, and as soon as he found an enemy plane, he climbed as soon as possible, and then dived to attack the enemy plane, borrowing the effect of gravity to speed up his dive.

Now that the model is made, the next step is to enlarge and make the real fuselage. However, the real fuselage is not so simple, although Jiang Tao knows that many fighter jets during World War I and World War II are made of wood without raw materials, but he does not know what kind of wood is suitable for making aircraft. But he didn't have to worry, there were three experts around him.

"What do you think is wood that's light and strong enough to make a fuselage?"

"If you go back to the adult, the most suitable for the requirements of the whole Northeast is the white pole wood." Xia Kang, the eldest brother of the three brothers, arched his hand and replied to Jiang Tao.

"Then let's use white pole wood, and you don't call me any adult, just call me Jiang Tao."

A week later, the Xia brothers lived up to Jiang Tao's hopes and successfully completed the fuselage, and Hu Jun also received good news that the engine was completed.

"Thanks to the reminder, I used a connecting rod to connect the seven cylinders directly to the crankshaft, because the shape of the engine can also save the original flywheel. There is no need to add a water cooling device for heat dissipation, the cylinders should be in the first row, so you can directly add some heat dissipation fins. Hu Jun said excitedly to Jiang Tao.

"Then hurry up and put this engine on. By the way, you go and get Captain Nie and ask him to see it and give us some advice. ”

Jiang Tao and Hu Jun slowly added the engine to the fuselage, although the engine directly exposed to the outside looked a little ugly, but everyone ignored this, after all, this was the first plane they made by themselves.

"This is the plane you made?" Nie Hengyu, who was called, looked at this plane with an incredible expression. In fact, Nie Hengyu didn't expect Jiang Tao to really make an airplane in just one month, so many Jiang Tao said at the beginning, more to remind Jiang Tao to put some energy into the plane, but he didn't expect Jiang Tao to really make an airplane in a month.

"This is indeed the plane we built, but I don't know if this big guy can go to the sky."

"Why don't you let me try?" Nie Hengyu rubbed his hands, looking eager to try.

"It's not good, what if something happens." Jiang Tao is really worried about safety, in his heart, this group of pilots is much more valuable than airplanes. If you don't feel sorry if you drop the plane, you're afraid that you will break the pilot, after all, you can't train pilots now, and every one of them is a baby.

"Don't worry, as long as he doesn't disintegrate and explode, I have a way to drive him back." Nie Hengyu thought that Jiang Tao was afraid that he would fall off the plane.

"Hey, Captain Nie, I mean I'm afraid that I'll have another problem with this plane and drop you."

"What are you afraid of, isn't this plane flying all the time? Put it here as a decoration? Nie Hengyu replied without thinking about it.

Seeing that Nie Hengyu insisted on flying the plane, Jiang Tao couldn't refute it. "Captain Nie, then you can wait."

"Wait, my hands are itching right now."

"My Captain Nie, I'll make you a parachute, in case something really happens, it's a little useful." Jiang Tao hurriedly ran to the city, found someone to buy a large piece of fabric, and made a very simple parachute, as for whether it is useful or not, it is not clear whether it is used for most of it, but everyone hopes that this parachute will not be used.