On the third day of Operation Rolling Stones, Lin Youde got up early in the morning and didn't have a good breakfast, so he ran to the office to read last night's action report.

"The report won't run away on its own again." Isabella complained angrily, "Do you want to hit my country so hard? ”

Lin Youde smiled meaningfully at Isabella, then picked up the report that was already on his desk as usual and began to read.

After reading a few pages, he said with a relieved expression: "It seems that the female fox has a good appearance on the battlefield, and I am still worried that the immature jet engine will fall off the chain." ”

Isabella looked unclear: "What is a female fox?" New weapons? ”

Lin Youde opened the drawer, rummaged through the manuscript he had drawn for a while, and took out the concept design of the female fox - in fact, he copied the appearance of the British sea female fox jet fighter from another time and space according to his memory. In fact, the female fox used in Germany and the female fox in the United Kingdom are two different things, but they look alike.

At that time, Lin Youde, as a half-hung military fan, basically didn't look at the performance and actual results of the fighter, but all looked at the shape. He has a soft spot for two types of fighters: one is Grumman's F14 Tomcat and the other is the sea female fox of British descent.

Lin Youde's version of the female fox is not so much a jet fighter as a special flying magic armor, and the Americans' flying magic armor actually follows the same idea, but Lin Youde has completely made the appearance of an airplane and added jet power.

Lin Youde handed the concept art of the female fox to Isabella.

"This is our female fox, you can think of it as a new type of flying magic armor."

Isabella took the picture, looking very interested in the new magic armor.

"Does this have anything to do with the armor of the Americans?"

"I did read my intelligence sources and observers' reports on the war between the United States and Japan before I decided to do something like this. However, I started the relevant pre-research long before the start of the US-Japan war. It's actually an airplane, and when our technology matures, we can remove the magic element and turn it into a fighter that ordinary people can drive. By that time we will rule the entire sky. ”

"Just blow it." Isabella pursed her lips and said disdainfully, "If nothing else, how will this thing fly after removing the magic parts?" Is it possible to add engines to both tail booms? ”

Lin Youde looked at Isabella with an inexplicable expression.

"I ......," Isabella hesitated, "did I say something wrong?" ”

"This thing, itself, is powered by a jet engine. Its power system does not have a magic guide device, the magic parts are only used to ensure the strength of the body, with the improvement of our process, after having a more reliable engine and a stronger body, you can remove the magic parts. ”

Isabella frowned and looked carefully at the picture Lin Youde gave him.

"You say this thing doesn't rely on a magic device to power it? But it doesn't have a propeller on it -- wait, what the hell is a jet engine? ”

Only then did Lin realize what the problem was: Isabella didn't have the concept of a jet engine at all.

"Many of the engineers who helped me develop jet engines were from the UK." Lin Youde frowned and looked at Isabella, "But you, as a queen, have never heard of this at all, no wonder they want to leave the United Kingdom and come to Germany." Listen, a jet engine is a brand new engine that heats the gas in the combustion chamber to expand the gas and then sprays it backwards to create thrust. Of course, the specific process is much more complicated than that, but it can be summed up as such a process. ”

Isabella asked suspiciously, "This engine doesn't use a propeller?" ”

"No, you don't." Lin Youde shook his head.

"And it has a lot more thrust than a piston engine with a propeller, right?"

"Not only is the thrust high, but it also solves an important problem for piston engines." Lin Youde paused, "I don't know if you can understand ......"

"If you can understand a question, then so can I." Isabella interrupted Lin Youde's words and emphasized loudly.

"Well, the piston engine relies on the propeller to generate thrust, but when the speed of the aircraft increases to a certain distance, such as more than 700 kilometers, at this time, the combined velocity of the outer part of the propeller blade is close to or even exceeds the speed of sound, so the front end of the propeller will generate shock waves due to the air compression effect, and the propeller blade that exceeds the speed of sound cannot provide thrust. In other words, as long as the piston engine is used, the aircraft has a speed bottleneck that cannot be broken. Jet engines do not have this problem, and if you want to break through the speed of sound, you must use jet engines. ”

Lin Youde stopped talking, looked at Isabella, and asked her with his eyes, "Do you understand?"

"I understand, I understand," Isabella stared at Lin Youde suspiciously, "have you built an airplane that can fly to 800 kilometers per hour?" ”

"No, but we have come to this conclusion through guò real yàn." Lin Youde is becoming more and more proficient in lying, and he will come as soon as he opens his mouth.

But Isabella was obviously not so easily fooled, and she said: "But, as I seem to remember, my spy has long found out that you have set up an institution called the Jet Power Real Yàn Room or something, and now it seems that it is the one that studies this kind of engine, right?" How do I remember that you set up this body in 32 years? You've only been in power for a long time, and you don't have that many scientists and engineers under your command. ”

Lin Youde stared at Isabella with a meaningful smile, and then lowered his head and looked at the report on the table, obviously not planning to continue the topic.

Isabella looked unrelieved, but she didn't continue to ask, probably because she knew very well, and if she continued to ask Lin Youde, she might only say something "You become my woman, it's clear".

Lin Youde flipped the report all the way to the end, then pushed it to the side, and complained in a dissatisfied tone: "There is still no report of sinking and damaging the ship!" On the first day, I voted a thousand! So far not a single ship has been blown up. ”

"The first day was mostly outside the Royal Navy anchorage," Isabella said, "and it's normal that capital ships can't be in and out of the harbor very often, and destroyers and the like don't trigger your mines, right?" ”

"Indeed...... Wait, you're hostile to me, can you help me analyze this? ”

When Isabella heard Lin Youde say this, she also had a bad expression and hurriedly shut up.

Lin Youde pursed his lips.

"Last night, more than 700 pieces were invested in Liverpool and other civilian ports, and I hope to have results today." He prayed so quietly.

(Although I still owe two more looks, but this month's total update is so conscientious, don't you vote?) ）