On the eve of the cold snap, the second adjutant, the German envoy, Kohl, boarded a plane bound for Japan. In addition to Kohl himself, there were two staff officers sent by the Supreme Command, two rear admirals of the surface ship unit of the Navy Command, and two more communications technology officers, one of whom was responsible for sending and receiving telegrams during Kohl's time in Japan, and the other was mainly responsible for the exchange of German-Japanese communications equipment.

In consideration of the large number of passengers and safety, the planes were also divided into two, except for Kohl himself, the rest of the crew were divided into two groups, and the crew, including the pilot, was also divided into two groups after the replenishment, and the two pilots who had flown the first two flights were the main pilots of the two planes, and their partners were replaced by new German pilots. Cole still trusted Lieutenant Colonel Mustakeli's skills more and chose to ride in the No. 1 aircraft.

The two planes also carried a batch of supplies, mainly including 50 improved and latest Enigma cipher machines (with 4 more rotors than the original), but Cole knew that the word "latest" was obviously a deception to the Japanese, because Germany itself had equipped the Ennigma II generation in the field of top-secret communications (using three Enigma codes combined for three consecutive compilations, which was twice the size of the first generation machine), and the difficulty of deciphering was not a cumulative increase in mathematical level like simply adding a rotor, but a geometric exponential increase. On this trip, he also brought one with him during his trip to Japan, which was used for direct communication with the High Command and the Führer's office, although of course this equipment was very rare even in Germany itself, and was only used at the top secret level.

Now, of course, Bletchley Manor has just been blown up by Operation Skythunder. The British will not be able to recover the code-breaking mechanism in the short term, and the code-breaking ability of the Americans can be poor, not to mention the new model after improvement. Even the old models were not so fast to decipher, but Cole knew that the Führer was still very uneasy about it, and had asked scientists to carry out research on a new generation of cipher machines - the overall design and operation concept must jump out of the Enigma code. In addition, a set of Iron Fist No. 2 and the actual Akashi radar on board were also taken for the reference of the Japanese.

As far as the military technology level is concerned, it is still necessary to communicate with Japan, and the technical parameters of the oxygen torpedo that I got back last time made the eyes of the military industry straighten, whether it was the Type 95 used on the submarine or the Type 93 oxygen torpedo used on surface ships, the indicators greatly blinded the eyes of the Germans. In front of the facts. The military industry, which had always thought that its torpedo technology was the best in the world and insisted that it was impossible to manufacture oxygen torpedoes, was completely dumbfounded. The commander of the submarine forces, Dönitz, spoke directly with a request for immediate mass production and refinement, which he wanted to promote within the German Navy. Of course, he is also aware of the danger of oxygen torpedoes, and is ready to use them on surface ships first, and then transfer them to submarine forces if they are reliable.

Another surprise was the Zero carrier-based fighter, and the last time the Japanese asked Cole to bring back was a full set of drawings for the Zero-32 carrier-based fighter (an improved version that Japan only finalized this summer). Although this aircraft has the problem of insufficient structural strength and easy to catch fire after being hit. However, the German aviation technology department found that the Rong 21 14-cylinder air-cooled engine they had built using the drawings could actually have 1,215 horsepower (only 1,130 horsepower in the Japanese original), and 1,275 horsepower if high-grade fuel was used, which was 145 horsepower more than the Japanese original. Considering that the performance of laboratory products is better than that of industrial finished products, aviation experts are also optimistic that if the fuel produced in Germany and used a degree of C3 or higher, the stable horsepower output of more than 1,250 hp will not be a problem. BMW, which was tasked with the replication and technical validation work for this purpose, officially requested that the production of the BMW 801 air-cooled engine for the FW-190 be authorized, because they believed that if the Bf-109 was modified with this engine, it would be possible to receive good results. Although the Japanese have given a full set of drawings, considering the sustainability of the technology exchange (the parties agreed not to charge each other licensing fees). The Ministry of Armaments still demanded that companies respect intellectual property rights, and at least that German companies that copied Japanese equipment should pay German companies that exported technology to Japan.

The command of naval aviation was overjoyed when it heard the news. They originally thought that the survival rate of the Zero carrier-based aircraft was too weak because of the use of Lanmetal, a special aluminum-magnesium alloy and the practice of punching and reducing weight, (the formula was also synchronized), but if the engine horsepower can be effectively enhanced, the weight increase caused by the structural reinforcement of the Zero, the addition of self-closing fuel tanks, and the installation of bulletproof armor on this premise will not weaken the performance of the aircraft much, but because the Zero is longer than the ME-155 to be used on the Zeppelin aircraft carrier, it is very attractive in actual combat. Both aircraft are similar in size and weight, so it is not a big problem for pilots to get used to.

At this level, I have to feel that Japan and Germany have completely different understandings of the range of the aircraft: Japan is accustomed to the original Zero Combat 21 with a range of more than 2,000 kilometers, and is very dissatisfied with the range of the Zero Combat 32 with only about 1,100 kilometers (not considering the auxiliary fuel tank), while Germany has been enduring the short leg disease of the BF-109 with a range of less than 700 kilometers (the FW-190 cannot be shipborne for the time being, and the ME-155 has a range of less than 650 kilometers after naval treatment), At first glance, it was overjoyed to hear that there were other technical indicators close to it, but the range was up to 1,100 km (up to 2,000 km by attaching drop tanks).

After hearing this news and judging by other information, the Messerschmidt company, which has always been well-informed and has a close relationship with the Air Force, stalked and insisted on getting the authorization to copy the Zero War, and even without waiting for a clear reply from the aviation department, it quietly produced the German version of the Zero Combat 32 in accordance with German technical requirements for technical verification, which is also a big news for the German aircraft industry, which has always been above the top. However, the commander of naval aviation, Senior General Richthofen, knew what was going on, and the Italians had tentatively agreed that Germany would take unified command of their navy and air force, and that the Italian Navy's aircraft carrier, the Eagle aircraft carrier, which was nearing completion, still lacked usable carrier-based fighters -- some of the Messerschmidt companies were smart men.

However, Cole was in no mood to pay attention to these things at the moment, and he was still trying to figure out how to complete the task given by Hoffman.

The pilots who flew the Far East route for the third time finally accumulated enough experience, they took off in the afternoon, and when the sky was completely dark, they flew deep into the territory controlled by the Soviet army, the Russians almost had no radar, and there was a lack of night fighters, and the night flight was relatively safe, and after dawn the planes were already in Central Asia, where Soviet planes were basically not visible, and the safety was more guaranteed.

After a long journey of 20 hours, Cole, who landed at the Tokyo airport again, found that it was the new deputy chief of staff, Ishihara himself, who had come to pick him up.

"Why did Your Excellency come here in person?"

"Deliver the goods quickly and arrange accommodation, then have a good rest, and I will take you to visit Admiral Yamamoto this evening."

"Will he see me?"

"Admiral Yamamoto has been very busy, and I have made several appointments for you to get one, so don't miss the opportunity."

"This ......," Cole said embarrassedly, "isn't it good to go empty-handed for the first time?" I heard that Admiral Yamamoto is a very tasteful person, so what should I give you? ”

Having had his first experience, this time Cole learned to be obedient, and brought a bunch of daily consumer goods such as cigarettes, wine, and chocolates, all of which were reserved for social use.

"I could have given cigarettes, but now I guess I can't. Forget it, chocolate bar, they have more children, and he is away from home all year round, so he can't take care of the family. Ishihara still knows some allusions to Yamamoto's quitting smoking: Yamamoto Fifty-six has no habit of drinking, but he likes to drink coffee and smoke very much, and is especially particular about smoking. But after he announced in public that "I will no longer smoke until the China incident is over", he gave away all the fine cigars and cigarettes he bought in England. When the ambassador to Britain in 1936, Tsuneo Matsudaira (a native of New Thirst Prefecture and a negotiator in London in 1934) who returned to China in 1936, wanted to give him some British cigars, Yamamoto was unmoved, but said, "Please keep them for me, I will smoke them after this incident." ”

In the evening, under the recommendation of Ishihara Waner, Cole finally met the long-known Yamamoto Fifty-six General.

"Mr. Special Envoy is here, please sit down, what good things have you brought us this time?"

Cole knew that the other party was asking about random equipment, and after a brief explanation, he respectfully said, "I have always wanted to visit Admiral Yamamoto, and I feel very honored to finally get my wish today......

"To tell you the truth, I've always been against the Triple Alliance, and if a German envoy had visited me a few years ago, I would have ignored him and thrown him out, but now...... Hahaha. ”

Ishihara on the side also smiled: "Am I not also an opponent of the Triple Alliance? Isn't it the same now that I have a good conversation with the German envoy? In other words, in the eyes of the Navy, only an army deer like me supports not expanding the war, right? ”

"So, Ishihara-kun is a good friend of the Navy, well, the land minister and the prime minister are also good, and I am very satisfied with the formation of the cabinet this time." Yamamoto suddenly turned to Cole and said, "Of course, I should also thank Mr. Special Envoy, if you hadn't relieved me, maybe my Yamamoto would have been infamous from now on, although I have a bad reputation now." ”

Only then did Cole realize that Yamamoto was talking about the leak of the Midway cable, and hurriedly said: "Don't dare, in fact, the Führer has always spoken highly of you, saying that you are one of the few strategists in the Japanese Navy and even in Japan. (To be continued.) )