The aircraft engines transported from the rear, as well as damaged aircraft and parts, are constantly coming. Yang Tianfeng was surprised at the various types of aircraft used by the National Army Air Force, and various engines have also brought trouble and difficulties to aircraft manufacturing.

The manufacturing process of wooden aircraft is becoming more and more skillful, but the weight and volume of various engines are different. It is definitely not possible to manufacture according to the same specifications and sizes. The key to design and manufacturing of wooden aircraft is the counterweight issue.

The attitude of an aircraft is controlled by the static stability of the aircraft itself and the aerodynamic generated by each control surface. The center of gravity of the aircraft can change within a certain range without losing control. If the center of gravity changes beyond this limit, the attitude of the aircraft cannot be maintained and stalls will occur.

The center of gravity of an aircraft is divided into two situations: the design center of gravity and the actual center of gravity. The former is fixed, while the latter is changing. The consumption of fuel, the launch of machine guns, machine cannons, rockets and other weapons will all change the center of gravity. The range of changes must be controlled within a certain range to avoid flight instability and lead to difficulty in operation of the aircraft.

If the counterweight problem is not solved, the aircraft will be insecure and in severe cases, it will cause flutter and even cause crashes.

Manufacturing first, then pressurized cabins, or weighting on the wings and fuselage is of course a solution, but it is not the best. After all, it is difficult to make major changes to a plane that has been formed. Remanufacturing is a waste of manpower and material resources and time.

Therefore, Yang Tianfeng should try to draw the shape and size of the aircraft on paper based on the weight and volume of the installed engine, and calculate whether the center of gravity of the aircraft is controllable. Changing it on paper will definitely be much easier and efficient.

Paper and theoretical work are the best at Yang Tianfeng. After several revisions, he used the method of lengthening the wings and extending the tail of the aircraft to basically complete the first design drawing. Although he dare not say that it is 100% correct, it minimizes the possibility of remanufacturing to the extent.

Two 775-horsepower Wright Tornado improved engines, seven 745-horsepower third engines, and three 710-horsepower second engines, which are the aircraft engines that will be transported all.

All the Wright whirlwinds were transported, and **** 3 and **** 2 were only partially arrived. These are aircraft that have been withdrawn from the National Army Air Force, either due to mechanical failures, non-combat losses, or were injured and forced landing. According to the National Government's maintenance capabilities, these aircraft parts almost became scrap. I believe the National Government did not take these rags piled in the warehouse seriously, and Chairman Jiang also made a favor.

It is estimated that the engines and components of the Iran 15 and Iran 16 will be transported in the future. Although these two Soviet fighters have lagged behind the international level at that time, they are the main aircraft of the current National Army Air Force, and there are a lot of them, so naturally there are many losses.

With these rags, they could barely piece together an air force, but Yang Tianfeng did not have such confidence to defeat the Japanese. Quantity is a reason, and production capacity is even more important. Not being able to produce important components such as engines is an insurmountable obstacle.

Of course, the models designed by Yang Tianfeng are advanced and mature. The improvement of wooden structure and engines also greatly improves the performance of the aircraft produced compared to the original aircraft. The most important point is that the aircraft designed and manufactured by Yang Tianfeng is designed for air combat. Lightness, cleverness, agility and fast are his goals. In addition to the advanced dual-aircraft formation tactics, it still has the power to fight against the Japanese aircraft.

The power of a battle is nothing more than that. Compared with the thousands of Japanese aircraft, it is irresistible in any case. It can only be achieved in local and in some specific situations.

But no matter what, having an airplane in your hand is a deterrent to the Japanese, and the Battle of Long Kang proves this.

At the same time, in the process of manufacturing and repairing aircraft, the production and processing levels are constantly improving, and the abilities of workers and technicians have also made great progress. These are good foundations, laying a relatively solid foundation for the present and future.

Yang Tianfeng was busy with calculations and drawing work. When the guard came in to report, Ma Yuming was here. After packing up the documents, Yang Tianfeng left the office and met and talked with Ma Yuming in another room.

"Brother Yang, haha, I'm here to congratulate you." Ma Yuming was extremely intimate when he saw Yang Tianfeng.

If the superiors have something to do, the subordinates will do it. The people in the Military Control Commission are well-informed and have a keen sense of smell. Yang Tianfeng is favored by Chairman Jiang, and Ma Yuming can guess something from Boss Dai's instructions and words.

"Congratulations, why don't I know what kind of happy events are there?" Yang Tianfeng smiled and asked Ma Yuming to sit down and ordered someone to come to tea to serve water. "Is it necessary to reward Long Kang's victory?"

"This Long Kang victory is to be rewarded, but I am not going to tell Brother Yang today." Ma Yuming did not come up with any documents or letter of appointment, which shows that he received the news in advance and came to congratulate him in advance, and perhaps there were other purposes.

"Brother Ma, I'll sit down." Yang Tianfeng sat upright and said, "No surprise can beat me up."

"Hahahaha." Ma Yuming laughed loudly, and his laughter stopped. He slowly picked up the teacup, took a few sips, and then slowly spoke: "This is the first joy. Brother Yang will soon be appointed as the director of the newly established Shandong-Henan-Anhui Border Region Government Branch. In Suzhou Special District, it is under the jurisdiction of the Shandong-Henan-Anhui Border Region..."

Yang Tianfeng blinked his eyes, but did not show too much excitement. The Henan-Anhui border area is still relatively normal. Why did Shandong be added to become the Shandong-Henan-Anhui border area? What does it mean to suddenly establish a government agency in the border area?

Ma Yuming knew that Yang Tianfeng was as careful as his hair, so he was naturally confused by the Shandong-Henan-Anhui border area. He did not explain and continued: "This second joy is to contribute radar information to Brother Yang, and the National Government rewarded fiat currency with a special reward of 50,000 yuan."

"Has the radar been developed?" Yang Tianfeng was a little moved this time. In any case, this will be of great benefit to China's war of resistance and can greatly reduce the losses of Japanese aircraft bombing.

"Yes, it has been manufactured in Chongqing, and is being erected and debugged, and it will be used for actual combat soon." Ma Yuming nodded with a smile and said, "Chengdu, Kunming, and airports in various places also need to install radars to deal with Japanese aircraft bombing. Brother Yang's contribution has saved our Military Control Commission a lot of effort and less sacrifice!"

Chongqing, Chengdu, Kunming, and airports will be key cities and places for Japanese aircraft bombing, and it is reasonable to install radar. As for what Ma Yuming said, saving the military command's strength, Yang Tianfeng also knows what it is.

In the historical War of Resistance Against Japan, China did not have radar, but had an early warning system. The more rustic method is to hang lanterns to report air strikes, that is, to hang different numbers according to the distance of Japanese bombers, so that people can judge the degree of danger after seeing it from a distance.

Why did you know in advance the distance, order and exact time of the Japanese bomber attack? That was the contribution of the Military Control Commission.

After the 53.54 tragedy in Duyou Street, Chongqing, Chairman Jiang ordered Dai Li to investigate the details of the Japanese plane launch in advance, so as to establish an early warning mechanism to protect the safety of innocent people in the accompaniment.

The Military Control Commission has used a lot of manpower and material resources to this end. Usually they rented houses near each airport of the Japanese army, disguised themselves as ordinary people to observe the direction of bombers' take-off and landing, mounts and time, and even sneaked into the near the aircraft to visually measure the loading volume, and then quickly informed the Chongqing headquarters on radio so that the air defense department of the accompanying capital would hang the ball early.

The Japanese naturally became aware of this, so a life-and-death battle between detection and anti-detection was frequently staged, and many military commanders died for it.

"Mr. Shu Xing Bei Shu is indeed a physics genius, amazing, amazing!" Even Yang Tianfeng, who provided the information, had to admire the outstanding talents of the "father of Chinese radar" and had to admit the energy and efficiency of the power of the country.

"Yes, Mr. Shu made a great contribution, but Brother Yang made the greatest contribution." Ma Yuming gave Yang Tianfeng a thumbs up.

Yang Tianfeng waved his hand modestly and said tentatively: "If possible, can we build a radar for the Yongcheng base? I wonder if it is 50,000 French currency, I wonder if it is enough?"

"Haha, Brother Yang is really good at calculating!" Ma Yuming laughed again and said, "Boss Dai had guessed that Brother Yang would have such an intention. He had already arranged it. Brother Yang would have to spend the 50,000 yuan bonus himself. But-"

He showed his diligence for nothing, either a traitor or a thief. Yang Tianfeng immediately became alert, but his face seemed to be smiling. He looked at Ma Yuming and waited for him to finish his words.

Ma Yuming sighed softly and said, "In Shanghai, the agent warfare is getting more and more cruel and fierce. Suffering traitors and killing the Japanese will be the main action plan of the Military Control Commission. Therefore, more snipers with accurate marksmanship are needed, just like Xu Ping, trained by Brother Yang."

Xu Ping! Yang Tianfeng nodded gently, and still had a deep impression of the woman who had suffered and was full of murderous intentions. But she was a member of the Military Control Commission and had been transferred for several months. It turned out that she was going to Shanghai to perform an assassination mission.

The operation to kill enemies and eliminate traitors in the Japanese occupied area began as early as 1938. Tang Shaoyi was hacked to death by an axe by a military command agent disguised as an antique dealer in his concession residence; Chen Lu, the "Minister of Foreign Affairs" of Nanjing's pseudo-reforming government, was assassinated; Ji Yunqing, the leader of the Tong generation of the Qinggang, was shot dead by the military commander at the door of Weihai Road because of collusion with the Wang puppet; Mu Shiying, president of the National News Agency, was also beaten to death by the military commander for surrendering to the enemy.

The series of anti-traitor activities of the Military Control Commission greatly aroused the hearts of Shanghai citizens. Everyone in the Wang Puppet traitors were in danger, and they effectively shocked a group of people who wanted to abide by the enemy. The newspapers pro-Chongqing exaggerated every incident, and the editorials compared the Military Control Commission as a contemporary hero who performed the way for heaven.

The Japanese army and the Wang Puppet Agents headquarters were so angry that they not only continued to coerce and induce military command elements, but also strengthened bloody terrorist activities. The gun battle between the two sides broke out in full swing and escalated. According to statistics, in 1939, in various sniper cases that occurred in the Shanghai Concession, the number of casualties on both sides reached 40.

"Is she okay in Shanghai?" Yang Tianfeng naturally expressed his concern.

"She did a pretty good job in Shanghai." Ma Yuming sat back and said with a smug look: "One shot is fatal, and the bullets are shot without any flaws. With the silencer provided by Brother Yang, the traitors killed, the Japanese didn't even know how they died. Moreover, there is no need to get close to them, and it is easy to escape."

Yes, long-distance sniping, as a means of assassination, is indeed very advanced and unpredictable. After all, even with guard protection, the warning range is only a few dozen meters.

Yang Tianfeng knew that Ma Yuming wanted to borrow a sniper from him, but he was a little reluctant. Those elites took a lot of effort to cultivate them.

Seeing that Yang Tianfeng was hesitant, Ma Yuming smiled embarrassedly and said, "Brother Yang is afraid he can't bear to leave me? I don't borrow too much, just three or five. It was my mistake before, so I didn't select team members from the Rangers to give them to Brother Yang for training, and I'll make up for it immediately. When the training is done, I will return Brother Yang's people. Moreover, there will definitely be a good reward."

Yang Tianfeng knew that Dai Li wanted to make some achievements, while Ma Yuming wanted to make contributions and performed well in front of Boss Dai. If he refused, it would be obviously a bit incompatible. Moreover, he had very important things to send someone to Shanghai to handle, so he would take this opportunity to deal with them together.

"Three." Yang Tianfeng stretched out his finger and looked very painful. "The personnel of the Rangers must be carefully selected and ready to be in place immediately. After three months of urgent training, I promise to train Brother Ma to produce a few elites."

"Thank you, Brother Yang, for your commitment." Ma Yuming bowed and expressed his gratitude.

"The personnel sent to Shanghai should not belong to the Military Control Commission Shanghai District, but should be grouped separately and contacted on a single line." Yang Tianfeng knew that many military commanders had rebelled in history, which almost caused a fatal blow to the Military Control Commission organization in the occupied areas. In order to ensure the safety of the personnel he sent, he had to make a tactful suggestion, "In addition, I want to send two people to Shanghai to help Qiulan find his family."

"Sister-in-law's relatives? It should, it should!" Ma Yuming nodded repeatedly, "Send them to Shanghai, leave this matter to me to ensure safety. Then, should we use the power of the Military Control Commission--"

"Don't make it known to everyone." Yang Tianfeng shook his head and said, "It doesn't matter if you can find it better. To be honest, I don't like her family very much, and I am willing to sell my own flesh and blood. This character..."

It is normal for poor families to sell their children. Do you have to starve to death if you stay together? Ma Yuming thought this way, but he did not sing the opposite tune with Yang Tianfeng. He nodded repeatedly, looking like he agreed deeply.

After seeing off Ma Yuming, Yang Tianfeng returned to the office. After long thinking, he guessed the meaning behind the new appointment.

Yang Tianfeng was mentally prepared to take the government affairs of the Henan-Anhui border region into his hands, and did a lot of work, making many guarantees and promises. Sun Tongxuan strongly supported him, and Wei Lihuang, who was also the chairman of Henan Province, was said to agree and reported to the government. Why did it eventually become the Shandong-Henan-Anhui border region? Yang Tianfeng finally had his own guesses.

This is very likely to express Chairman Chiang's attitude, hoping that the New Seventh Army can wait for an opportunity to enter Shandong, and even designate North China in the future. As for why it develops northward, of course it is to compete with the Eighth Route Army for territory!

After thinking through this section, Yang Tianfeng couldn't help but frown. This was exactly the opposite of what he expected, and it was really embarrassing. After a lot of thought, Yang Tianfeng decided to let the flow go and not advance north for the time being. Instead, he first sorted out government affairs work, strengthened military construction, developed civil economy, and agricultural planting, turning the Henan-Anhui border area into a larger and more solid development foundation for the New Seventh Army.
Chapter completed!