Carrier-based fighter jets have always used B-219a, while land-based ones have used B-219b after a period of time. In addition to ship-based take-off and landing equipment, the gap between Type A and Type B is also in that Type B is equipped with an MW-50 system (water/methanol injection), and its weight is slightly heavier than the carrier-based aircraft and its maximum speed is slightly faster.

Carrier-based aircraft has also tested equipment for Type B, but if the B is not "taken drugs" after the take-off and landing equipment, its performance is not as good as Type A. If you take drugs, the engine life will be shorter. For carrier-based aircraft that cannot replace spare engines in maritime operations, this not only means that a plane is abandoned in vain, but may also bring danger to the pilot. Who knows when the engine will have problems, and problems on land can be saved. Parallel diving at sea is obviously a life-and-death life, so the A-type was finally selected.

After the improvement of the A and B types, due to the arrival of the team of Japanese designer Jiro Horikoshi, Messer Schmidt, known as the "king of patches", further developed the C type, hoping to extend the vitality of the B-219 and support the company's new generation of carrier-based fighter jets (Lifeng modification) to successfully form, in order to defend the company's absolute kingship of the fighter jet market after the me-262 was identified as the main fighter jet, production began to rise sharply.

The Japanese team is mainly composed of four people, including chief designer Jiro Horikoshi, structural computing expert Sono, weapon instrument expert Masaaka and landing gear expert Tatsuhiko Kato. Behind him are more than 3,40 professional designers and technical experts from the DFK Design Bureau. In the words of Jiro Horikoshi: There are any experts you can think of here, and they are all world-class.

Faced with the results of the previous changes in Germany, Jiro Horikoshi himself expressed surprise. He did not expect such a drastic change, as if he had given Zero War a newborn. The most interesting one was Soeen, who was responsible for carefully calculating weight reduction, but now he not only added the reduced weight back, but also racked his brains to calculate how to further strengthen the structure without affecting the flight status.

Type C improvements are relatively large, mainly including:

First, it has replaced the new engine. With the premise of thoroughly understanding the technology, bmw company used its exquisite manufacturing technology to further squeeze the limit by boring the cylinder block diameter by 3mm, achieving an increase in total exhaust volume, which increased by 45 horsepower compared with the original engine power, and its weight almost remained unchanged. Based on these 45 horses, the subsequent performance has improved a lot.

The second is to develop the folding wing tactic. On the b-109t, Messerchmitt Company has developed the folding wing. The original Zero Warfare has not been able to be folded due to insufficient structural strength. The C-type has once again strengthened the wing part. The single-sided wing can be folded upward for about 6 meters, saving a lot of downtime space.

The third is to reconstruct the firepower. In order to offset the increase in component after folding and strengthen the structure while improving performance, Horikoshi Jiro boldly proposed the suggestion of abolishing two 13mm aerial machine guns, and then moved the two 20mm/mg151 aerial guns to the wing root position, and the single-door reserve bullets increased from 150 rounds to 220 rounds. Overall, the firepower projection per unit time decreased, but the firepower continued to be strengthened.

After improvement, the total weight of b-219 has increased by 27 kg, the maximum flight speed has been increased from 619 km/h to 631 km/h, and the rest of the flight performance has remained basically unchanged.

The benefits of using folding wings are obvious. The fighter's capacity level has increased by 25% in one go. The hangar where 30 fighters could be placed immediately. This is obviously more important for aircraft carriers that have to be petty about all space and utilized to the extreme.

Ozawa pulled Jiro Horikoshi aside and whispered in Japanese: "Is there any problem with doing firepower like this?"

"No problem, compared with mg151, the 99 gun is simply garbage. The ammunition is only half as powerful as the Germans. And you should know that the domestic zero-war 20mm ammunition reserve capacity is only 60 rounds, mainly relying on machine guns. Now mg151 is still retained, and the ammunition has been increased."

Seeing his confident look, Ozawa felt relieved and asked him about the follow-up progress of Liefeng Reform.

"It will take some time." Horikoshi Jiro admitted that he had delayed his time in the country and said angrily, "If I had been here three months earlier, this would have been the case... But you know those bureaucrats."

Ozawa only sighed at this.

After in-depth discussion and listening to pilot test flight opinions, everyone has always believed that weakening firepower will not have a particularly big impact on the elite-based HNA fighter pilots, but the benefits of folding wings are too great. Type C should be the direction of the carrier-based aircraft in the short term. Mashar and Ozawa considered it over and over again, but in the end, they did not choose to change all the equipment, but only half of them were replaced.

Subsequently, the fleet's senior management team accompanied by the Military Affairs Department to Henkel Company. They took a step further in upgrading the he-218 and launched the he-218d model.

The aircraft engine was replaced by db601e to db605b (605 is an upgraded version of the 601 series). The engine was equipped with a first-stage two-speed mechanical supercharger (mainly taking care of medium and low altitude performance) and had stable mass production capabilities. Its power reached 1,475 horsepower, which was 125 more than the original 601e engine. However, the engine size, diameter and volume were basically the same as the db601e, and the weight was only increased by more than 50 kilograms. After multiple wind tunnel tests, Henkel Company accurately adjusted the center of gravity distribution of the entire aircraft, and appropriately extended the body and tail wing to maintain balance, and the fuel tank volume also increased.

This can be regarded as a major improvement of the he-218 series. After the improvement, the maximum speed of the aircraft reached more than 611 km/h. What's more important is that the take-off and landing and handling performance at low speeds have become better. Several pilots who went there praised this and believed that at least the take-off and landing accident rate of novice pilots can be reduced by more than half.

Henkel told the fleet that the next generation of the next generation of the modifications are also being promoted, and it is expected to use the latest db605d engine, with the overall power increased to more than 1,600 horsepower, and then functions such as folding wings will be introduced.

Mashar and Ozawa were also doing the same, preparing to replace half of the fleet he-218.

Originally, Maschel was a little strange. Last time she heard that Henkel's new generation modification would include folding wing function. Why did she rush to launch a new model after the folding function design? After Junkers saw the ju-198 (Meteor modification) technology verification machine, he realized Henkel's intention was so flattering: they had clearly felt the pressure from Junkers and were ready to use technological improvements as much as possible to seize the market.

ju-198 is not an upgraded version of ju-98, it is completely two models with different ideas.

The meteor has both dive bombing and horizontal attack functions, and is very simple to produce and is extremely suitable for mass manufacturing. The main wing folding is considered when designing. Compared with the original Japanese version, the improved model of Germany is more powerful and the speed load capacity has also been improved. It can be hung in the 1,000-kg torpedo or 800-kg aviation bomb.

Ozawa asked the Japanese experts present, and he generally believed that compared with the he-218 and b-219, the number of parts modified by meteors is the least and the production requirements are the lowest. It is basically no problem to get back to Japan for production. As for the first two aircraft, they dare not guarantee it.

In terms of engine selection, due to the lessons of the do-412 and the successful measures of the ar-352, Junckers wisely selected the BMW801 series engine, but reserved interfaces for the 901 series. The only thing that disappointed everyone was that this aircraft is still under development, and the expert team said that it will not be put into mass production until at least December.

As the commander of the aircraft carrier formation, Ozawa has a good impression of meteor modifications that integrate dive bombing and lightning strike capabilities, excellent maneuverability and very simple production. He looked around the plane and then finally went back reluctantly.

On the way back, the two quickly calculated that if the he-198 was developed successfully, the aircraft carrier would still be equipped with three models of aircraft in the future, and the composition ratio could be adjusted to about 40%-45% fighter jets, about 5% carrier-based reconnaissance aircraft, and then 50% attack aircraft. When facing different tasks, this general model can bring great convenience and improvement in combat effectiveness. If the base increase brought by folding is considered, Ozawa is optimistic that the fleet's combat effectiveness can be increased by at least 40%.

His only concern is that the meteor attack aircraft has put forward higher requirements on the quality of pilots, both to master lightning strikes and dive bombing, and the training will be more difficult.

When he told Mashar this doubt, the latter laughed: "Why do you need to do this? Isn't it just that I'll equip more pilots? It's definitely difficult for pilots to strike lightning and dive bombing, but it's much easier to separate them into two pilots. I'm overequipped with dive bombing and lightning strike pilots, and it can also form an effective rotation aircraft or the same aircraft. Different missions will take different pilots."

Ozawa nodded and said yes, but when he thought about the actual situation in China, he felt sad: "Germany has a way to equip enough pilots, what should Japan do? After the new aircraft with folded wings is on board, I am afraid that even the pilots of the new aircraft carrier will not be able to get all."

"Don't worry about General Hori Teiki. He will definitely train reserve pilots vigorously when he returns to Japan this time." Mashar comforted him, "and provide some pilots. When the joint fleet travels west again, there is no need to worry about this."

Late at night on July, the main force of the huge German naval fleet set out from Italy and was preparing to start the implementation of the "Pearl of Peace" plan... (To be continued.)

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