blood feud

"What do you want to do?" Gan Tong was a little puzzled by Bai Shujie's decision: "The penicillin production base is on the halfway up the mountain, and the weapon research institute and the chemical research institute are located in the cave at the foot of the mountain. Afraid of leaks?"

"Sister is really an honest person!" Zhao Jinxi said with a smile: "She is setting up an air defense position for herself! Sister, think about it, who is Germany? It is a country that has signed a treaty of friendship and alliance with the little devil. The devils are bombing here, and Germany is about to speak!"

"Also, to the north of the Black Ridge is the Miaoxiang Mountain, which is our most important airport and our most important military base. Big brother builds villas between the two, the little devil has to weigh it?"

Bai Shujie shook his head: "What Jin Xi said is only one aspect, and my fundamental starting point is not what I mean. Think about it, we are not a national government, but an illegal city of Pyongyang, right? To win the trust of People, to convince others that we are not liars, someone needs to come out and speak to you."

"We need to establish a positive image internationally and have a certain influence. The first thing we need to do is to be honest with each other. The biggest advantage of the Germans is that they have always been meticulous in doing things. They will think about what they promise. There is a way for you to do it. I don’t treat them as outsiders, this is a key step in gaining people’s trust.”

"Thousands of students we sent out to study need a respected status and identity, so that they can make friends widely. Now being open and aboveboard is a silent declaration. Besides, if you want to keep it secret, it is only temporary , cannot solve the fundamental problem.”

By the way, after explaining his thoughts, Bai Shujie suddenly thought of something: "Gan Tong, the sales are about to start, I asked you to supervise the printing of packaging labels, and how about making military flags?"

Gan Tong nodded: "Samples of the Flying Dragon trademark and the Flying Dragon Flag have been passed on to Wang Xinlan for registration abroad. The military flag is the Flying Dragon Flag you designed. The surface of the flag is: a golden dragon on a red background with five claws soaring into the clouds, implying that the Flying Dragon is in the sky. The military flag It has been made up to the battalion level, the key is to see when you will change the military flag uniformly."

"Let's change the military flag and put it on the Spring Festival!" Bai Shujie made a calculation: "The 31st of this month is the Spring Festival, so on February 1938, 2, the flying dragon flag will be officially activated. Remember, every one of our ships must be Fly this flag, this is our identity to the world."

Thinking of the ship, Bai Shujie threw the matter at hand to Zhao Jinxi and Gan Tong, and soon disappeared again.

It turned out that since Wei Chong robbed the "Taku Shipyard" to obtain a large number of German gun barrels, Bai Shujie put all the 20mm gun barrels out of the rifling and put them in stock.

He has not found the 360-degree rotating chassis, nor the artillery control system, so this matter has been delayed.

This time, Horst delivered the goods to the door, and Bai Shujie finally got the long-awaited main accessories, so he hurried to the "Weapon Research Institute" in Hei Ling.

Here he has an independent office and two secret warehouses.Starting from the Sanxian Cave in Chengde, he had his own laboratory in the weapon research institute, and now he has moved here.

Now, four huge cylinders composed of five steel pipes are placed on the desk.The two 36-degree rotating bases of the quadruple-mounted M360 ship-borne anti-aircraft guns are placed here.

Close-in defense Phalanx, this is what Bai Shujie has been researching.

The four-mounted M36 40mm ship-borne anti-aircraft gun, its automatic fire control system, is the originator of the later Phalanx.Naturally, Bai Shujie cannot use 40mm caliber artillery. The objects of his experiment have two calibers: 20mm and 30mm.

Now instead of defending against cruise missiles, it is necessary to fight aircraft, and at the same time take into account the raids on enemy destroyers, cruisers, and even battleships and aircraft carriers.Therefore, the rate of fire is one aspect, and the range is another aspect.

The Phalanx of later generations is mainly to defend against cruise missiles, with a rate of fire of 3000-4500 rounds per minute, so the range is only 1500 meters.According to this standard, attacking low-altitude aircraft is still so-so, but it is useless to deal with enemy surface ships.

The "deformation phalanx" that Bai Shujie needs is to reduce the rate of fire and increase the range.

The goals he set for himself are: 20mm Phalanx, which is mainly prepared to be installed on future bombers (the load capacity of fighter jets is too small now); 30mm Phalanx, which is prepared for ships.

The specific requirements are: a 20mm phalanx, a combat rate of fire of 450 rounds per minute, a range of 2400 meters, and a box of 720 rounds; for enemy aircraft, it must be "destroyed upon discovery".

The 30mm Phalanx has a combat rate of fire of 300 rounds per minute, a range of 3600 meters, and a box of 1080 rounds.It is mainly used to strike low- and medium-altitude aircraft, to raid enemy surface ships at close range, to use armor-piercing projectiles and incendiary projectiles to kill personnel and destroy equipment and weapon systems on the deck.

In theory, as long as the ammunition box is constantly replaced, it can be fired without gaps.Of course, it is impossible to meet this condition in actual combat, because the cooling time of the barrel is required, that is, to replace the next set of barrels, the design time is 45 seconds.

The more important point is: the load of the aircraft is limited, and there are only three spare ammunition boxes at most.It doesn't matter for surface ships. Adding a weight of 3 kg for 5 ammunition boxes will not affect anything.

The first project that Bai Shujie wanted to test was that the five gun barrels bundled together should be able to rotate and fire, so as to ensure that a bullet box would not get jammed after being fired.

In order to meet Bai Shujie's request, Huang Qiaoyun, head of the guard regiment, specially sent an artillery platoon of 70 people.For the next three days, the shooting range in the dense forest in the back mountain was full of "chug chug" and "chug chug" all day long.According to Huang Qiaoyun's estimation, it is estimated that 3 tons of shells have been destroyed in these three days!

During this process, a production line in the arsenal is ready at any time, either to adjust the binding method of the barrel, or to reprocess a certain part.Especially for various deformed gears, I don't know how much waste there is.

The second content of the experiment is Bai Shujie's "cottage" fire control radar scr-584 sighting system, which is now numbered "dw gun sighting fire control system".

The "dw artillery sighting system" consists of two sets of antennas, which can automatically scan targets in a 360-degree azimuth, and then determine one or two targets for priority strike according to the target distance.

Bai Shujie is not a god, he can't track dozens of targets at once, and how many of them can be hit, and he doesn't have such lofty ideas.

At present, the only thing that can barely cope is a set of "dw artillery sighting system", which can control two phalanxes at the same time and strike one or two targets at the same time!

It is better to break one than to hurt ten fingers, this is Bai Shujie's design guiding ideology.He had no way to tie 10 barrels together, but he used two phalanxes to hit the same target, which increased the firepower density in disguise.

It's not that Bai Shujie doesn't want to increase the rate of fire, but that the quality of steel in this era can't meet the requirements.Increasing the speed means reducing the range, which means constantly replacing the barrel, firing mechanism, and spring.

It seems that the instantaneous rate of fire is very high, but it has no practical significance. If it is put on the plane, it will become an iron lump of "one shot is useless". This Bai Shujie is unwilling.

From this experimental process, a motor prepared separately finally started to participate in the experiment.Because the next step is already a "semi-automatic" and "automatic" mode conversion experiment.

The object of attack was a scrap locomotive, which was constantly moving along the light railway at a distance of 1200-3600 meters.Of course, three layers of 400mm thick iron plates were installed on the hit surface as temporary armor.

After half a month of tossing back and forth, 5 tons of shells were fired, was it successful?

No, failed!The Phalanx did not fail, what failed was the "dw artillery sighting system".

Bai Shujie hoped that the "dw artillery sighting system" could command two groups of phalanxes to hit two targets in different directions at the same time, but failed.

The most critical point is that the fire control radar scr-584 gun sighting system belongs to the mechanical calculation mode and is not as powerful as a computer.It can aim at a target, and that's pretty good!

So when shooting at two targets at the same time, only one Phalanx is always firing, and the other is resting.In fact, two phalanxes fired in turn, this is the result of Bai Shujie's experiment.

"Damn it, I'm already very patient, but the result is still too ambitious!" After three days of careful deduction, Bai Shujie finally found the root of the problem: "It seems that before the computer technology is mature, it is impossible to attack multiple targets at the same time. Impossible!"

Only one target can be hit at a time, Bai Shujie finally gave up.

After careful calculation, a 30mm five-tube phalanx has a total combat weight of 2750 kg (including 200mm shield), 985 kg without rotating base and shield.

A 20mm five-tube Phalanx has a total combat weight of 2390 kg (including 200mm shield), 625 kg without rotating base and shield.

A warship that Bai Shujie wants to transform as an experimental model is the destroyer Feilong 301 (Furong Maru), which has now been towed into the outfitting stand of the newly repaired dock.

The squadron commander Zhang Bingyang didn't know what the commander-in-chief was going to do. In his opinion, the destroyer Feilong 301 was already very good.

这艘驱逐舰的基准排水量820吨，满载排水量1100吨；主尺度：85.3米(全长)/8.1米(宽)/2.5米(吃水)。

动力：2台布朗-柯蒂斯式单级减速齿轮蒸汽轮机，3座吕号舰本式重油专烧锅炉，21500马力；燃料371吨；航速35.5节，航程3000海里/14节。舰员：110人。

火力：3座单装三年式120毫米45倍口径主炮，射程24公里；2挺7.7毫米高射机枪机枪；

鱼雷：双联装六年式533毫米x2，配六年式鱼雷6枚，1号水雷20颗；深弹：投射机x2、滑轨x2，深弹36颗。

But Bai Shujie knew that the sonar system of the little devil's ship was scumbag, so it was only later that the American submarine was unable to fight back.

The use of submarines by the Little Devils Navy is at the same level as the use of tanks by the Army, which is equivalent to the kindergarten level, and will not be considered for the time being.

The speed of the Dragon 301 is 35.5 knots, and the range of the 120mm main gun is 24 kilometers, which is okay for now.Anyway, the little devil's destroyer is like this, so it's not the same.When the new gun with a range of 27.5 kilometers comes back, it will not be too late to replace it.

Therefore, before the new sonar system comes back, Bai Shujie must first improve the air defense firepower of Feilong 301 and increase its self-protection ability.

Remove two 7.7mm Type 30 twin-linked anti-aircraft machine guns, and then move two dw9mm five-tube Phalanx up.Two phalanxes, each with 1 spare ammunition boxes ([-] rounds).Although the size is larger than before and the weight has increased by two tons, Bai Shujie thinks it doesn't matter.

The big deal is to reduce 4 tons of fuel, and I am not prepared to run very far anyway. 3000 nautical miles, or 2800 nautical miles, is of no practical significance to Bai Shujie.

The biggest change in this refit is the addition of two newly developed air defense radars on both sides of the bridge, with a detection range of 75 kilometers and an actual response distance of 48 kilometers.Guantong finally confirmed the target, and the distance to enter the combat state was 32 kilometers.

Shortly after the Spring Festival in 1938, the modification work came to an end, and the final painted horns were all completed.The flying dragon flag with sea waves has been hoisted on the main mast.

"Commander Zhang, starting tomorrow, you will go to sea to verify the artillery system and radar system." Bai Shujie said to Zhang Bingyang at the handover ceremony: "I don't know whether these things work on your destroyer, so you need to take them Get the results. Don’t run too far, just 50 kilometers.”

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