The wooden oars were inserted into the water in unison, and at the command of the helmsman officer, the naval sailors pulled the oars with all their might, and the white hull split the clear blue waves, and quickly sailed towards the Japanese submarine not far away.

Because there were two more crew members than when they came, the two Japanese sailors stayed on the deck of U106, ready to wait for a later exchange of supplies before bringing them back. But it seemed that the two senior soldiers did not mind at all, and they were glad to be able to stay on the German submarine and continue to taste Western tea and cigarettes.

As the name suggests, the Haida Type 3B submarine is a large submarine, and in the establishment of the Imperial Japanese Navy at that time, she was classified as a first-class submarine and was regarded as the core and main force of the Navy's submarine force. However, in terms of tonnage, the sea can only rank second in the category of submarines, and the current first place is the patrol submarine type 3 with an underwater displacement of up to 3,500 tons, but the navy has only built two patrol submarine types before, and the ship numbers are Yi 7 and Yi 8.

In addition, as far as Kijima knows, at the Kure Navy Factory, there is a submarine of a larger tonnage being outfitted at the moment, and according to the plan, it should be completely completed by the end of February next year, and the submarine is internally finalized as a patrol submarine type, and according to the Japanese Navy's numbering rules, it should be named Submarine I(9).

First of all, the Japanese Navy takes tonnage as the standard, and divides the submarines into first, second, and third classes, with first-class submarines being large submarines of more than 1,500 tons, second-class submarines being medium-sized submarines of less than 1,500 tons, and third-class submarines being old or small submarines of less than 1,000 tons.

In the first-class submarine class, it is divided into two categories: Haida and submarine patrol, which is mainly distinguished from the equipment and use of the two, Haida is an ocean-going fleet attack submarine, the main weapons are torpedoes and deck guns, and the cruise type can be regarded as a strengthened version of the sea large, she has a larger size and tonnage, stronger surface firepower and longer range.

What's even more special is that the submarine cruiser submarine is equipped with a water reconnaissance aircraft in the sealed cabin of the lower part of the command tower, which makes it easier for her to find the traces of enemy ships in the vast sea. Of course, the cost of this kind of submarine is also very touching, even the navy with deep pockets does not dare to build more, so far only eight have been served, named the Imperial Japanese Navy submarines I-1 to I-8.

Among the first-class submarines, there is also a kind of 1,700-ton large mine-laying submarine, which the Japanese Navy calls "mine submersible" (the Japanese word for mine is mine), each mine-laying submarine can carry 42 naval 88 mines, this kind of submarine The Japanese Navy has built a total of four, and the ship numbers are I-121 to I-124.

In the rest of the war, these submarines have been doing meteorological reconnaissance, rescuing overboard pilots and other miscellaneous work, during the Battle of Kuah Island, they also participated in the transportation of rats for a while, and even shelled the Kuah Island airport, and by the end of the war, only the Yi 121 was left, and finally together with other surrendered and captured Japanese submarinesIt was scuttled by the U.S. military in Wakasa Bay in Kyoto Prefecture.

"What a beautiful submarine." Captain Robin said with a smile at Guijima.

"Thank you for the compliment, Captain Robin, the Imperial Japan has the world's best ship designers." Kijima replied proudly.

With the help of the sailors on duty, the group boarded the deck of the I-60. The melodious boarding whistle sounded, and then a Japanese Navy captain shouted: "Lizheng! ”

A line of sailors dressed in the Japanese Navy's light brown tropical overalls, wearing navy blue combat caps, lined up on the deck with their heads held high, saluting the German guests.

"Please go this way." As the highest-ranking officer on the ship at this time, he was responsible for the reception of "visiting friendly troops".

"This is Major Nokina (Nomura), and this is Captain Auxiliary Aircraft Seven (Fujiki)." Kishima introduces Robin to the other officers.

At this time, almost all the officers with stars on their shoulders on the I-60 came to the deck, such as the chief navigator of the I-60, Someya, the ship medical officer, Yamagami, the mine Naganaga, the mechanical chief Akiyoshi, the gunner, Kawashima, etc., a group of naval lieutenants wearing well-fitting beige short-sleeved uniforms, one by one stepped forward to shake hands with the German officers, and a special agent Cao Chang held a Zeiss camera and kept pressing the shutter around the crowd, recording this historic scene.

After a brief tour of the submarine bridge, Robin and Igor entered the Il-60's boat through the entrance and exit of the Command Tower. This is a large submarine with a displacement of 2,300 tons, the width of the hull reaches 7.9 meters, and two trucks can be parked side by side, of course, the inside of the cabin cannot be so spacious, because the Yi 60 has a double shell structure that was rare at that time, and the width of the inner compartment is slightly wider than that of the U106.

Because the materials and processing technology of Japanese submarines are relatively backward, and the strength of the pressure-resistant shell is extremely limited, the deepest depth of the Haida III is 60 meters, which is less than one-third of the theoretical depth of the U106.

As mentioned earlier, the German IXB type can dive to a depth of 200 meters, but in fact, many submarines have broken through this depth in actual combat, and the conventional anti-submarine weapons currently popular in the world are completely powerless in the face of submarines sailing at that depth. In addition to the fact that the depth of the water pressure fuse could not be set at all, the speed at which the conventional depth charge sank was about five meters per second, and even if the depth charge had not been detonated after a distance of 200 meters, the German submarine would have already run two miles.

The command compartment of the I-60 was cleaned, the floor covered with rubber non-slip mats was almost spotless, and the metal surfaces of the equipment and pipelines in the cabin were polished to a glea, much to the surprise of the two German officers, whose U106 was as dirty as a tractor with more than a dozen hands in turn compared to the Japanese submarine.

In fact, the German Navy also pays great attention to the hygiene inside the ship, and the crew is as clean and shiny as their submarine when they set sail, but with the extension of the sailing time, where does the crew still have the physical strength and spirit to maintain the hygiene in the cabin, and they don't even bother to take care of personal hygiene, so cologne is the standard ration of German submarine sailors. Captain Robin would shave his beard once a week, replace it with the casual captains of the fleet, go to sea with a clean little white face, and return home as a bearded barbarian.

However, Robin has also been on a few extremely clean German submarines, such as the U1001, and I don't know where that guy is lurking now, and the captain has finally found some balance in his heart.

"This is our helm seat." Guidao generously introduced, and Robin hurriedly looked at it.

The Japanese submarine's gauges were not shielded in any way, and Robin felt that there was no need for that, because he didn't recognize any of the other markings on the gauges except for a few individual English letters.

"It's all Chinese." The captain muttered quietly, and turned to his co-captain.

Igor didn't speak, just squeezed his eyes at the captain quickly, and Captain Robin immediately breathed a sigh of relief, with a school bully by his side, it was so reassuring.

PS: Thank you for your support, the author will continue to work hard.

Here's a advance notice that tomorrow the author will go to the hospital, and this article will be suspended for one day, and the day after tomorrow will continue to be updated.

Ask for monthly passes, ask for recommendations, ask for clicks, thank you for your subscriptions and tips, I need more motivation.

It's the end of the month, everyone votes for the monthly pass in your hand, and it will be invalid if it expires.