Berlin Palace.

Anne hurried in with an excited look on her face and reported. "Your Highness, the ambassador to Switzerland sent a telegram, and the British envoy wants to talk to us about peace talks. Congratulations, Your Highness, the British finally surrendered!"

"Oh, the British want peace talks?" Yannick's face showed no excitement at all. "They just want to delay time." If the current British Prime Minister was Chamberlain, he might believe in the sincerity of the British peace talks. But Churchill, even if this guy wrote a blood letter asking for peace talks, he wouldn't believe it.

Annie couldn't help but be startled. "What about calling the ambassador back and saying no?"

Yannick shook his head. "Why refuse? They are stalling for time, and we also need time. Let our ambassador just play with them. If you are really annoyed by them, let them cede a few battleships to us first, and then continue talking."

Yannick felt that there was only one chance to land in the UK. If the first landing failed, the consequences might be disastrous. Perhaps the German army will lose confidence in landing in Britain from top to bottom, while Britain will firmly believe in resisting. Aid from the United States will continue to be sent to the British mainland, and the Soviet Union on the Eastern Front may stab you in the back at any time. Thinking about it makes people shudder!

Therefore, he had to make complete preparations and needed time to integrate French and Italian forces to land on the British mainland in one fell swoop.

Landing is an operation that pays great attention to transportation capacity. In addition to the first wave of ships hitting the beach, we must also prepare for the follow-up of three to four waves of troops. The number of landing ships not only determines the intensity of the landing, but also ensures This ensures the continuation of the combat effectiveness of the landing force. Once the follow-up inability problem occurs, the landing force will face the danger of annihilation. This is a key issue that cannot be ignored.

It's a pity that current technology cannot yet create ground-effect aircraft. It would be much easier if we could create a "Caspian Sea Monster" like the Soviet Union in later generations. Soldiers can be transported in entire divisions. As long as ten "Caspian Monsters" are needed, a heavy tank brigade or a medium tank division can be transported at a time.

After sighing, Yannick grabbed the phone. "Get Messerschmitt."

"Hi! Hohenzollern! Your Highness, what are your orders?"

"How is the design I sent you last time?"

"Your Highness, you are really a genius. We have already made a prototype of the design you sent and conducted wind tunnel testing. There is no problem with the body, it's just..."

"Is it just that the engine problem has not been solved?" Yannick couldn't help scratching his forehead. If he had known that he would time travel here, he would have read more about this aspect. He only remembers the principles of something as complex as a jet engine, but he can't produce more detailed drawings.

The voice on the other side sounded a little ashamed. "Yes, the heat resistance of the main components of the engine is still insufficient. We will have to wait until new materials are developed to meet your requirements."

In fact, the German aviation department is now able to produce jet aircraft, but Yannick simply disdains jets like the "ME262", which later generations of military fans jokingly called "one of the fighters with the most kills of German aces"; What's even worse is that the Germans also formed the 44th Air Force, as if they were afraid that their ace would not die.

He needs a more mature and advanced jet.

When talking about the development of jets in World War II, I believe that the first thing many people think of is nothing more than the Me-262 and He-162; the Allies also had P-80, Meteor and other fighters at that time, but compared to those that actually entered World War II German jets pale in comparison.

This also creates a stereotype. German technology seems to have been ahead of the Allies such as the United Kingdom and the United States for a long time. However, in fact, as early as 1930, a slightly rudimentary centrifugal turbojet engine appeared in the United Kingdom. It was created by Frank Whittle, a 23-year-old student at the British Central Flying School.

Frank Whittle was born in Coventry, England, in 1907. At the age of 15, he applied for the Royal Air Force, hoping to become an aircraft maintainer. Although he was rejected twice by the Air Force during the application process because of his thin stature. Rejected, but with his unremitting efforts, Frank finally successfully entered the training school of the Royal Air Force in the second half of 1923. In 1926, he was discovered for his unique flying talent and passed the British Academy in Cromwell. Royal Air Force Academy, qualified as a cadet pilot.

In the second year after Frank entered the Royal Air Force Academy, that is, in the fourth semester of 1928, Frank published a paper titled "Future Development of Aircraft Design". The paper mentioned that for aircraft pursuing high speed, , flying at high altitudes with low air resistance is the best way. Currently, the efficiency of traditional reciprocating engine-driven propeller aircraft at high altitudes is very poor. If you want to improve the performance of aircraft at high altitudes, then a gas turbine-driven propeller engine, Even a rocket engine would be a better choice.

Whittle's paper was not the only contemporary article that mentioned the limitations of propellers, but it hit the key points of future aviation development. It also outlined a blueprint for a turbine engine in his mind. In the following two years, Frank, who entered the military service as a pilot, did not give up this idea, but continued to research while serving. After continuous efforts, Frank proposed a reciprocating engine in 1929 to drive the compression section, suck in the airflow, and The concept of a jet engine that increases combustion in the jet stream at the tail of the fuselage to generate thrust. Coincidentally, this design called a thermal jet engine appeared in the Italian Peninsula thousands of miles away during the same period, by a man named Secondocan. It was proposed by Pini's young engineer, but unlike Campini, Whittle finally realized the limitations of this engine. Due to the heavy weight of the reciprocating engine that drives the compression section and the limited volume of the compression section, the overall power It was so bad that the design of this engine was quickly abandoned and a new gas turbine engine was launched.

In late 1929 and early 1930, Frank got an opportunity to present the concept of a centrifugal turbojet to the British Air Ministry on the recommendation of his chief officer.

However, this design was criticized mercilessly by Griffith.

Griffiths, who made the criticism, was a giant in the field of British turbine engines. In a paper presented in 1926, he clearly raised the issue of the design of aviation turbine fan blades, which enabled the development of turbine fan blades to go further. In 1927, he won the British The Ministry of Aviation and the Aeronautical Research Institute sponsored the development of an axial-flow turboprop engine.

In his comments, Griffith believed that this type of centrifugal engine has a large windward area and poor efficiency, so it is naturally not an engine sufficient to power an aircraft. In addition, the British aviation industry also generally believed that the material requirements for this kind of engine were too advanced and could not be applied by the technology of the time. In the end, not only the Royal Air Force turned a deaf ear to Frank's design, but even Armstrong West Germany Leigh Engine Company, Bristol Aircraft Company and British Thomson-Houston (BTH, a company that produces electrical turbines) were not interested in his turbojet design. This situation made it difficult for Frank to maintain the patent due to financial difficulties while he continued to conduct research from 1930 to 1936. In the end, he could only watch the centrifugal turbojet patent that he had worked so hard to design expire.

Just when Frank was frustrated, the Germans found him, bought his patent with a huge sum of money, and invited him to work in Germany.

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