Liu Xuanhui was stunned and looked at the coins nailed to the wall, and did not recover for a long time......

Liuyun was quite satisfied with Liu Xuanhui's expression, and stepped forward with a smile and pulled Liu Xuanhui's fleshy cheeks: "Third child, you said, with your old man's magical ability, can anyone hurt me?" ”

Liu Xuanhui, who came back to her senses, swallowed her saliva, looked at her old man with bright eyes, and asked tentatively: "Dad, why don't you give me material for a few days?" ”

Liuyun snatched the plan in Liu Xuanhui's hand, rolled it up, and knocked it on Liu Xuanhui's head: "It's not big or small!" ”

"Dad, it hurts ......"

Liuyun glanced at Liu Xuanhui, who was covering her head: "How much effort I used, I know it in my own heart, don't pretend, hurry up and work!" ”

"Okay!"

Liu Xuanhui took over the project plan weakly and walked out of the office with her head drooping......

Looking at Liu Xuanhui, who was jumping around when he walked out of the office, Liuyun shook his head, withdrew his gaze from the window, glanced at his hands and neck, and sighed: "Urging ghosts!" ”

Although he was already mentally prepared, Liuyun still received a task that was not a task, such as "the sorrow of more than 300,000 dead souls".

The "Jinling Massacre" has always been a thorn in the heart of the "nationalist" Liuyun, and Liuyun is also preparing all the time: from the arsenals in the magic capital and Jinling, to maintaining good friendship with Tang Mengxiao and Tao Guang; From the regimental special brigade to the six-tube "troll" for air defense - the electric drive Gatling; From 52x caliber howitzers of an experimental nature, to full-range electronic countermeasures devices......

However, Liuyun is quite satisfied with his performance, and Liuyun has not thought about it, and he directly put his own "handmade" virus, which is a hundred. But when he thought that he might slaughter the "ball" because he provoked the world's powers, Liuyun's heart trembled: That scene was really wonderful......

However, it seems that the "ancestor" on his wrist does not seem to be proud, and reminds him: there is no thing in the northwest that can go to heaven now......

Although he is accustomed to the sudden appearance of the "ancestor" to take a cold breath, Liuyun is still quite looking forward to the construction of the air force.

In order to cope with the possible adverse effects of the construction of the Karakoram Railway, an armored unit on the scale of a group army was formed in the northwest, and by the time the railway was completed, the troops had initially become combat-capable.

After training in the "pool", the Northwest Navy, which received a new type of submarine off the coast of Karachi, is in high spirits and is heading to Australia for training with supply ships.

In fact, Qinghai has the ability and conditions to form an air force, but because it is located inland, few planes can cross the vast Central Plains of China and reach the "barren" northwest region......

However, with the gradual occupation of North China by the Japanese army, coupled with the Heisei Zero War, which is being developed with a range of up to 3,300 kilometers, even if the "ancestors" do not remind them, Liuyun is ready to establish an air force......

Although there is no air force in the northwest, there is a large group of "reserve air forces" who have passed the air force's physical examination and have excellent theoretical results: these pilots, who have never flown in the sky, have accumulated thousands of hours of simulated flight time on the ground.

Although there is no rabbit's "staring at whoever is pregnant" writing wheel, who let the garbage of the great aerospace era have so many abandoned disk servers, and Comrade Liuyun has picked up garbage for more than 200 years, and there are countless kinds of aircraft materials in his hands.

Before opening the "dungeon", we should first carry out infrastructure construction, and there happened to be a large number of victims who had turned over from the Central Plains.

So Liuyun waved his hand, and along the Hexi Corridor, he pointed out five front-line airports in a row, and later felt that it was a little less, and added two cities to the list: Dihua and Xining.

Back in Jiuquan, Liuyun handed over the design parameters of the fighter and the four-engine long-range transport aircraft to Liu Xuanying.

Liu Xuanying took the design requirements and looked at them......

After reading it, Liu Xuanying looked at Liuyun calmly: "Dad, with our metallurgical and mechanical processing capabilities, there is no difficulty in designing and manufacturing these two types of aircraft, but someone needs to fly them, right?" ”

Liuyun smiled: "First produce two-seat training aircraft in small batches, and then mass produce single-seat ones when there are more pilots." ”

As soon as Liu Yun finished answering, Liu Xuanying threw out another question: "Also, why do fighter jets use inline V-engines, while transport planes use star-shaped engines, shouldn't turbine engines be the main engine in the future?" ”

Liuyun glared at Liu Xuanying angrily: "You don't have a backache when you stand and talk, can we afford the cost of the turbine engine now?" ”

As soon as she heard Liuyun talk about the cost, Liu Xuanying was directly deflated, and the processing of the turbine engine made even the eighth-level workers in the machinery factory stunned.

Machining high-temperature turbine blisks, which requires heavy-duty hydraulic presses; The processing of high-temperature titanium alloy blades requires precision casting.

The processing of fan blades in the low temperature section, many eighth-level lathes who only have the level of primary and junior high school, are helpless, and the intermediate technicians who have learned advanced mathematics can be processed, but the scrap rate is really touching.

As for the more precise combustion chamber, a group of masters in the machinery factory took more than a month to come up with a processing plan......

This is still processing, as for the design, hehe, I'm sorry, Liu Xuanying's own brain is big: the drawings used in trial production are all "multiple simplified" versions taken out by his father......

It's not my style to fight back when I'm hit.

Liu Xuanying cheered up and glanced at his old man: "Then it's nothing, only the transport plane uses a star engine, while the fighter requires a traditional in-line V-shaped cylinder block?" ”

"The sky is the limit of a piston engine!"

Liuyun sighed, and then replied: "The star engine is destined to be replaced by the turbine engine, but the traditional in-line V-shaped multi-cylinder engine is not only used in airplanes. ”

Liu Xuanying suddenly realized.

Liuyun smiled, remembering that several so-called "high-end luxury" automobile manufacturers in the original history of the plane all started with aero engines.

The in-cylinder direct injection on the car engine was blown to the sky, and the first to be used was the mustachioed BF-109 fighter; Turbocharging technology, which has been blown for a while, was originally used in engines to compensate for the lack of power caused by high oxygen deficiency; As for the high-end V-shaped 12-cylinder engine, it is nothing more than a simplification of the aircraft engine of World War II......

Moreover, the technology of V-shaped multi-cylinder aero engine is the same as that of tank engines.

After the war, the Hans Leopard Leopard Bull coaxed the greedy Leopard II tank, the turbocharged diesel engine with up to 1800 horsepower, to say that the technology does not come from the accumulation of aero engines, no one will believe it: because the most bullish diesel engine technology in World War II is the woolly bear, no matter how against the sky, it is impossible for Hans Leopard to re-open the complete diesel engine technology tree in more than 20 years......