blood feud

Bai Shujie personally led the team, and after witnessing the results of shooting down three enemy planes, he discovered not only the tactical problem of air combat, but also his dw12.7.

Although the accuracy is very powerful, but the rate of fire is 80 rounds per minute, which is a rhythm for the enemy to beat his fighter into a ball of fire.

So he moved out a new project that he had been thinking about, and closed the door to continue thinking.

The core of this project is to fully combine the advantages and disadvantages of dw12.7 general-purpose machine gun, Browning 12.7 aviation machine gun and German mk108/30 aircraft gun to update the existing aircraft guns and machine guns.

德国mk108/30mm航炮的重量64公斤，2挺小鬼子的7.7mm总重量是98公斤。也就是说，用一门mk103/30mm航炮把两挺机枪替换下来，减少飞机载荷34公斤，刚好保持弹药重量平衡。

The rate of fire of the mk108/30mm aircraft gun is 740 rounds per minute, the muzzle velocity is 860 m/s, the weight of the projectile is 330 grams, the chain of 175 rounds is 60 kg, and the chain of 350 rounds is 120 kg.In the later period of World War II, this cannon was called a killer.It can fight aircraft against the air and light tanks against the ground.

Advantages: Such a shell hits any part, and a fighter jet of the little devil can be dismantled into parts. 4 shells can completely kill a Type 17 bomber (including b-[-] will also be shot down).

The two 7.7mm machine guns of the little devil are installed on both sides of the nose, and later changed to dw12.7mm general-purpose machine guns, which are still placed on the sides. If it is replaced with a 30mm cannon, it can only be hung on the belly;

The bf108/h (bf109) single-seat fighter was originally equipped with two 2mm cannons connected in parallel, but now it also needs to be hung on the belly.

If it is to be changed, an ammunition box must be created in the engine room at the same time, at least it must be able to hold the ammunition belt of 175 rounds.

The first difficulty faced was the trimming of the aircraft, and the second difficulty was that the weight of the aircraft was not reduced.

Regarding the weight issue, the bf108/h of the Flying Dragon Squadron is better. Anyway, its empty weight is 2630 kg, and the two single chains are 120 kg. The proportion of the extra 60 kg is only an increase of 2.2%. The impact is not very big.

However, the Kawasaki Type 95 of the Flying Leopard Squadron has an empty weight of 1300 kilograms, and the increase of 60 kilograms accounts for 4.6%. The trim problem needs to be considered, otherwise the stability of the flight and the safety of take-off and landing may be threatened.

When problems arise, a lot of experimentation is required.

The first is to change the position of the fuel tank inside the belly, and then design the position of the small auxiliary fuel tanks hanging on the left and right. The next step is to let the pilots of a squadron fly the modified aircraft in turn.

The second is to connect these types of machine guns and cannons in parallel and then install them to see how the performance of the aircraft will be affected.

Finally, it was found that the Kawasaki Type 95 fuselage of the little devil was not strong enough to withstand the recoil of the high-speed shooting of the mk108/30mm cannon.

On the contrary, the bf108/h installs two mk108/30mm cannons to replace the original 20mm cannons, and the weight increase is limited, but the barrel of the mk108/30mm cannons is slightly longer, and the others are hardly affected.

In the end, Bai Shujie decided to improve the first plan, which is to use the mk108/30mm aircraft gun from the "cottage" to replace the bf108/h of the Dragon Squadron first.

The mk108/30mm aerial gun needs to be operated by point control, and manual operation is not acceptable.So the original purpose of the "cottage" was that Bai Shujie was going to put it on Chengde's armored trains or armored cars to undertake air defense missions.

But later, when the little devil dealt with Chengde, he didn't fly the plane at all, so he had to give up.At that time, two bf108/h had already been assembled for secret training, so Bai Shujie never took out this cannon.

Now the armored cars I have modified all use the 20mm cannons that the little devils compensated for.Of course, most of them stayed in Chengde and were not brought to North Korea, because the Eighth Route Army needed that kind of thing more.

When the Flying Dragon Squadron completed the modification, Bai Shujie began to make two other aircraft guns for the Kawasaki Type 95 "copycat".Because you have too few planes, you must have sufficient firepower.Anyway, it cannot be the same as the 2mm of the little devil, it must be able to suppress the firepower of the little devil.

These two cannons are the 23mm and 25mm cannons used successively in the J-[-] attack aircraft series.

Finally, after more than a month of arduous test flight, the Kawasaki Type 95 has been modified with two parallel 25mm cannons, which also use electric control, and the power is much higher than 20mm.

After all, it is a technology that will be more than ten years in the future, and its performance will be different.The key is that the bomb feeding method, cooling system, and braking method have surpassed the current level.

Bai Shujie is used to driving a car, so ingeniously, the firing switches of the two aircrafts are all adjusted to the right foot.The purpose of this is to facilitate the pilot to be ready to maneuver the aircraft with both hands at any time, and will not be affected by the shaking of the fuselage when the fuselage rolls.

The cannon modification was basically on the right track, that was the job of the ground crew and technicians, and it was impossible for Bai Shujie to get stuck in it.He has now reached the Black Ridge Cave, which is an entrance with sixteen branch caves inside.

This is the most secret place of Feilong Expeditionary Army - Penicillin Breeding Base. The sign hanging at the door reads "Pyongyang Animal Quarantine Station".

Because of the prevention of infection, outsiders are not allowed to enter, so there are two sentry boxes outside the gate to guard.The outer sentry box has light machine guns, and the inner sentry box has heavy machine guns. The four soldiers on duty are holding assault rifles.

"how is the situation?"

Bai Shujie didn't go directly to the innermost part, but walked more than 30 meters after entering the main cave, just like drilling into a branch cave on the right. It turns out that this is the quality appraisal place after the final extraction. The person in charge of the "Flying Dragon Antibiotics" project, Wan Haotian works here.

"Brother, the output still can't be increased! I dug two 24-meter-long branch caves here to increase the cultivation of 4800 strains of bacteria. But now the daily output increase is less than 12%, and only 1 strains can be extracted. The unit of penicillin is about 590 sticks, and the highest one day is less than 700 sticks."

Wan Haotian said with a wry smile: "Over the past month, 72 tubes have been consumed in the hospital, and the current inventory is only about 20000 tubes. I heard that you are going to do business abroad. I'm afraid the output will not be enough, right? Tens of thousands of miles You can’t even earn back the shipping costs.”

"Just started, take your time! As long as you can increase the monthly production to 10 in half a year, I will make a fortune! If I tell you, 5000 units of 1 penicillin, I am going to price 5 units3 per ounce of gold, how would you feel?"

白书杰微笑着说道：“你现在有1万单位的2万支对吧，那就是5千单位的4万支。折合黄金就是13333.33盎司，就是378公斤黄金，40多万美元呢。”

On January 1938, 1, Bai Shujie's long-awaited second batch of supplies finally arrived.This is the mk/iv double-mounted Bofors m7 shipborne anti-aircraft gun with 36 seats produced in the Netherlands, with its own fire control radar scr-120 gun sighting system, developed by Bofors for fast tracking of air targets A simple mechanical computer constitutes a complete system.

The same batch came with 60 shells and 1200 barrels of various types.

What surprised Bai Shujie the most was that there were 12 quadruple-mounted M36 ship-mounted anti-aircraft guns as samples, and 2 vehicle-mounted self-propelled anti-aircraft guns, that is, mk/i 40mm "Morris" self-propelled anti-aircraft guns.The total weight of the battle is 8 tons, which is actually a medium tank.

40mm“莫里斯”自行高炮，平路上时速75公里/小时，越野速度55/小时。车组乘员由1名驾驶员、1名车长和2名炮手组成，可以携带120发弹药。从行进状态转为发射状态只需要1分钟，这是现在所有的国家都没有达到的。

Bai Shujie thought that Bofors would not export such "high-tech products", but he did not expect that others would take the initiative to deliver them to his door.

A little European old man who looks close to 50 years old translates through an Asian girl in her twenties: "Mr. Commander-in-Chief, I am the marketing manager of Bofors, but I am German. Please call me Horst is well. Mr. Penn specifically mentioned to us that you are a generous general, and it is a great honor to know you."

Bai Shujie smiled and hugged the other party, and then said: "Mr. Horst, thank you for your trust in me! Let the workers unload the goods here, please come to my office to talk."

After being introduced by the other party, Bai Shujie knew that Horst had a lot of background.

It turned out that Payne of the Texas Petroleum Company had known Horst in his early years.Because Germany was defeated in the First World War, all major arms companies were hit hard during the punishment period.

Due to the shortage of funds and the strict control of research and development projects, the level of scientific research can only stay on the drawings.In order not to interrupt its scientific research, Germany "kicked out" many of its experts to work as helpers for others. Horst is such a person.

The appearance of Payne secretly matchmaking, the powers of all countries actually want to restrain others, and they are secretly playing tricks.

In particular, the old capitalist countries, Britain and France, are the most despicable. They created a Maginot line of defense to block the German mustache's westward path and achieve the strategic goal of "directing disaster to the east".Let Germany and the Soviet Union lose both, and then join hands to clean up the mess.

Unexpectedly, the German moustache was even more cunning, and his diplomatic offensive fluctuated from east to west, making the east and west of Europe inexplicable, and basically all lost their minimum vigilance.

During this period, the Soviet Union, France, the United Kingdom, Hungary, and the Netherlands all conducted technical exchanges with Germany in private. This is also the fundamental reason why Germany was able to develop quickly. The so-called international treaties are all to deceive others.

However, the biggest problem in Germany is that resources are controlled by foreign powers. Payne helped a lot in this regard, so he became a good friend of Horst.

In line with the principle of equal benefit, when "Flying Dragon Antibiotic" was applying for a patent in Germany, Payne took Wang Xinlan to visit the old Horst.

"Mr. Commander-in-Chief, Ms. Wang has initially agreed to have me as an agent in Europe." Horst has no reservations: "We don't have cash to pay, but we can provide some arms in exchange. I don't know what Mr. Commander-in-Chief thinks about our proposal." What other opinion?"

"Flying Dragon Antibiotics" was going to be sold anyway, and the Deutsche Mark would soon be useless, so an exchange in kind would have been best.But Bai Shujie was not mentally prepared at all, so he couldn't think of anything to exchange for it.

However, Germany and the little devil are allies now, and it will be more troublesome if this Horst sells medicine to the little devil in the future.

"Mr. Horst, to be honest, I haven't received the report from Ms. Wang Xinlan." Bai Shujie chose his words carefully: "We have an agreement with Mr. Payne, and for the sake of fairness, this agreement should also be binding on you. That is, the 'dragon antibiotic' cannot be sold to our country's hostile country, Japan."

After all, what happens next, let's see the breakdown in the next chapter.