1941 was an exceptionally busy year for the Yokosuka Naval Yard.

In addition to the large number of new warships under construction, there are almost an equal number of damaged ships in the harbor waiting to be repaired. The workers work in three shifts 24 hours a day, but the huge workload still makes people see no end in sight, and the Navy Technical Department is also very busy.

For the first time, the commanders of the Combined Fleet felt the backwardness of their own equipment, and these warships, which they were once proud of, lagged behind their opponents in terms of software and hardware. And one of the most troublesome things for them is the lack of strict zhòng in terms of detection ability.

As everyone knows, although the Japanese Navy's radar technology did not start too late, it was despised by the military top brass who advocated attack because it was "defensive" equipment, and only a small number of land-based radars were deployed on the mainland, and the combined fleet's task of seeking the enemy was mainly carried out by reconnaissance planes, destroyers, and observation ships equipped with conventional optical equipment, so the work efficiency was very low.

On the other hand, on the side of the Star Castle, although the ancient radar has reduced the frequency of use because of the interference means of breaking the dawn. However, Zhao, who realized his position in this regard, soon allowed Thor to develop a new radar that used conventional technology, and there was no pressure to crush the Japanese army without radar.

Therefore, after the battle, the experts of the Naval Technical Department quickly determined that the enemy's main advantage was in the field of electric reconnaissance, and the injured IJN woke up like a dream!

However, it is obviously too late to hold on to the situation at the moment, and the top brass of the Japanese army sees that the progress of its shipborne radar research and development cannot keep up. You can only pull down your face and ask the German allies for help. The Germans, who were fighting the U.S. military on Mars, looked down on them a little, but they still provided technology and ready-made radars, hoping that they could break through the obstacles in the shattered star sector as much as possible. It will form a front and rear attack on the United States.

As a result, the Japanese side got its wish and obtained relevant technology and a total of 40 German-made multi-function radars.

It is worth mentioning that this kind of radar is not independently developed by the German side, and some black technology from the broken dawn is applied in technology, so the performance is very good, and it is the main radar that the German army has just begun to install. In order to break the deadlock, the Germans also had a rare bloodletting of conscience.

After the arrival of this batch of mines, the Japanese side immediately organized technical personnel to study the installation plan. Priority is given to the use of active capital ships. Shipbuilding Lieutenant General Hiragarang became the head of the project, and brought his most proud protégé, Masako Yamamoto, into the research group.

For the past four years, Masako Yamamoto has been learning naval techniques from Hiraga's side. An already exceptional talent. Coupled with the hard work of the day after tomorrow, Masako, who has made rapid progress, is quite appreciated by Pingga. If at the beginning, it was just to take care of the daughter of an old friend, then later he really wanted to accept the closed disciples.

In addition, Hiraga Jean is also one of the few people who knows the actual relationship between Masako and the emperor, as a person who has come from the past and is an elder who has experienced a lot of battles. He was well aware of this seemingly illustrious marriage contract. Actually, it's not the cause of happiness. It's only a matter of time before the marriage contract is dissolved, but because the man's identity is there, even if Masako is still perfect, no one in the whole of Japan will dare to marry her.

Although Masako herself didn't say it, she was also clear about it in her heart.

Therefore, out of appreciation and sympathy, when Hiraga Jean imparted knowledge to Masako, it can be said that he taught him unreservedly, and Masako's progress was naturally a rapid progress.

It took more than a month. Masako spends most of her day going back and forth between the design office and the shipyard. The task given to them is not only to install a radar, but also to upgrade it. There are so many jobs that need to be done that people are broken, but Masako has no complaints about it, just works hard silently, and with her as a young girl as an example, other big men don't have anything to complain about.

On this day, Masako, as usual, was working through a mountain of drawings, and her mentor had decided to hand over the design of the new aircraft carrier Yunryu-class to her.

The purpose of the Japanese army's construction of this class of aircraft carriers is to replenish the previously lost forces, and the sooner the new ships can be put into production, the better, so it is only required to be upgraded on the basis of the Wyvern class, and there is no need to completely redesign. So the difficulty is relatively low, and he was handed over to Masako to practice by Pinghe.

But just as Masako was fully engaged in her work, an orderly suddenly knocked on the door and came in to report.

"Yamamoto Shaosa, General Hiraga wants you to go to his office."

"Got it, I'll go over here."

As soon as he heard that it was the teacher calling him, Masako quickly wrote down his thoughts on the notepad, and then put down the pen and went out. As a result, as soon as I arrived at Hiraga Jean's office, I saw that the other party was dressed neatly, and he looked like he was about to go out.

"Teacher, are you going out?"

"The Army invited me to see their new gadgets, and I'm going to let you accompany me."

"But I'm not good enough, am I?"

"Don't worry about this, I've already taken care of it, and your father should be going too."

Seeing that the instructor had already been arranged, Masako did not refrain from refusing, followed the other party to the nearby military airport by car, and then transferred to the army's transport ship and flew south. Masako didn't expect to run so far, and she was a little apprehensive, and the accompanying army officer saw her nervous, and smiled and comforted her.

After leaving Honshu, the transport ship flew for more than 10 hours before it began to reduce altitude.

Along the way, although Masako was very interested in the so-called "secret weapon" of the army, she was embarrassed to ask anything when she saw that her mentor did not speak. The young officers who accompanied him looked very excited, and assured Masako that what they were about to see would definitely surprise them!

After the plane landed, Masako found that they had come to an uninhabited island in the southern waters of Honshu, which was named "(new) Iwo Jima" after the Great Migration because of an extinct volcano. The island was even worse than its predecessors in terms of environment, and the entire island was so black that even seabirds were reluctant to settle on it, so it was called the "Island of the Dead" before.

Masako didn't expect the army to build a secret base here, just judging from the perfect lighting facilities of the airport in front of him, this is not a simple base, it should have been established before the great migration.

At this time, another plane landed on the airport, and after the hatch opened, a familiar figure appeared in Masako's field of vision, it was his father Yamamoto Isoroku, who had not been seen for a long time. The other party also found Masako for the first time, and his expression was stunned at first, and then he couldn't help but show a kind smile. (To be continued......)