20 The head of my family has technology

When it comes to technology, especially fighter jet technology, Tan Ke feels that his field is what he does, and it is also the topic he knows the most. Pen & Fun & Pavilion www.biquge.info

On this topic, he could easily talk to the Führer until tomorrow morning, and after breakfast he would continue this kind of topic, and there would be no difficulty in talking about it for three days.

And he was happy to show his professionalism to the Führer, to intimidate the Führer and to give the impression that the mustachioed man in front of him was "I am professional".

If he could make the Führer stunned and make the Führer take his own suggestions on the design of fighter jets and multiple choices, then he could become a supplier of royal aircraft to the Third Reich, so happy that he had no friends.

"Do you know about the ME-109E fighter?" Li Le didn't give Tan Ke much time and asked about the Messersmitt fighter.

"Of course, the 109 is a classic fighter, it's delicate and characteristic, it's a very good fighter." Tan Ke carefully chose the words and talked about the competitor's products.

This was the time when the ME-109E fighter was in full swing, and it still maintained a performance advantage over the British Spitfire-1.

Even if Tan Ke wants to slander, there is nothing to say. After all, the classics of 109 have only one sentence in the eyes of German fans - "It's not Hardeman, you don't understand!" ”

But Li Le interrupted Tan Ke's news broadcast-style evaluation, and opened his mouth to directly talk about the data that was familiar to later generations: "The engine used in the ME-109E fighter is DB601A, which technically uses an inverted V-shaped 12-cylinder water-cooled, with a take-off power of about 1050 horsepower, a displacement of about 33L, and a weight of about 600 kg. Am I right? ”

Tan Ke felt messy for a moment, and suddenly remembered a vague concept that would often appear in later generations - the technocracy.

At this moment, he suddenly wanted to turn around, and shouted to the non-existent designers and apprentices behind him: "I'm X#$%, everyone come and see!" The Führer really understands aviation! He really understands! ”

The original real head of state is actually a guy who is very willing to fool people in the industry with professional knowledge.

The most classic case is that the head of state fooled the directors of the Farben company, and finally the boss of the Farben company came to the conclusion that "this Führer is smarter than I thought".

He talked about politics and technology with the soldiers, finance with the engineers, military strategy with the plutocracy and aristocrats, and then with a large group of fanatical believers about the spirit of the Germanic tradition......

If Zhao Benshan is a big fool, he successfully abducted and sold to Fan Wei; The Führer is a super fool, who can fool the whole country and even the whole world into his thief ship.

Obviously, most of Li Le, or the keyboard warriors who talked about the mountains on the Internet every day in later generations, inherited the eloquence of the Führer, and integrated a brain that was more knowledgeable than the Führer.

So when it comes to Kan Dashan's ability index, Li Le seems to be higher than the original genuine product.

And Kurt Tank, who concentrates on design research every day, is no match for this kind of boss-level World War II fan.

"Intelligence shows that the British's new aircraft is called the Spitfire-1, and the engine used in this aircraft is the Merlin 2." Before Tan Ke could express his admiration for everyone who is also a professional to the Führer, Li Le came up with more exciting news.

These news obviously stimulated Tanke's curiosity, because he had heard a lot of data for the first time: "The Merlin 2 engine, using a V-shaped 12-cylinder water-cooled method, has a take-off power of about 1000 horsepower, a displacement of about 27L, and a weight similar to that of the DB, which is almost 600 kilograms." ”

"We have a big advantage in terms of performance." Just by hearing some data, Tan Ke was very convinced that the DB engine was much more advanced than the Merlin 2. Because he knew that DB used a lot of technology that seemed advanced at the time.

"Yes, on the surface, it does." Li Le nodded, and then continued to give his evaluation: "DB is an inverted V-shaped machine, which makes the body of the Me109 smoother, but the maintainability may be worse than that of an ordinary V-shaped machine. ”

"My Führer, it's really a problem, but maintainability is just an indicator of how an engine is evaluated, and if the performance is much higher, it's definitely worth paying some price." Tan Ke used his professional knowledge to explain to Li Le.

Although he and Messersmitt are rivals, they stand in the general interests of the national camp, and it is necessary to do justice for the "national product".

"What you say does have a point, but I want to warn you that maintenance and structural simplification are also important features that must be considered." Li Le waved his hand dissatisfied, of course he knew that in the current state, the performance of the ME-109E fighter was quite powerful.

But a year later, the gap in engines was equaled by the British.

The following year, in 1942, the superiority of German fighters in performance ceased to exist.

As for the poor ME-262, Li Le didn't even have the slightest favor.

"If there are 1,000 fighters on the front line, each fighter can reduce the repair time by 6 minutes, and you can accumulate 6,000 minutes, that is, 100 hours." Li Le made a simple calculation.

"The accumulation of 100 hours, in a combat state, will make 5 aircraft incapacitated." He stretched out Wu Gen's finger and gestured: "I haven't done anything yet, and there are 5 fewer fighters." ”

Tan Ke didn't understand why he had 1,000 fighters, he still cared about the 5 that couldn't be repaired, and he didn't understand why Yuan Yi used 6 minutes as an example.

Of course, he didn't know that Li Le had simply cited 5 minutes, an easy-to-understand time unit, in the past, but it was very troublesome to calculate later, and then he increased his memory and used the easy-to-calculate time unit of 6 minutes......

"My Führer, you can't overhaul an airplane in 6 minutes." Tan Ke didn't know how to answer, so he had to remind him.

Of course, Li Le followed the good flow: "That means that there are many losses!" I will focus on this aspect in the future, and you must pay attention to it when designing an aircraft! ”

Tan Ke nodded hurriedly, eager to find a pen to record it: "Yes, my Führer!" I will definitely use the ease of repair as an important reference aspect! ”

Seeing that he agreed, Li Le, the fake head of state, began to show off his skills again, so dazzling that Tan Ke was embarrassed to say that he was a researcher of aircraft.

"The designers of the ME-109E liked the shaft gun, or rather, he thought that the shaft gun was easier to hit the target! In order to arrange the axle guns, the DB placed the supercharger on the left side of the engine, while the Merlin's supercharger was behind the engine, compared to the Merlin engine, which was more conducive to drag reduction. ”

"And I don't think it's worth it to stubbornly stick to the nose shaft gun in fact, and it's not worth giving up some of the performance indicators for it." Li Le came up with another topic to denigrate the ME-109E fighter.

Tan Ke did not defend his rival in the face of his peers, but he clapped his hands in favor of the Führer's point of view: because the guns of his FW-190 fighters were deployed on the wings.

So he took the opportunity to fall into the ground: "What you said is very correct, in fact, as long as it is properly adjusted, the hit rate of wing weapons is not bad." ”

"That's not what worries me the most." Li Le waved his hand and continued: "Actually, I'm more worried about the new technology used on the DB engine. ”

The DB used the most fashionable direct fuel injection technology of the time, which allowed the aircraft to fly without fear of negative G, while Merlin still used conservative carburetor technology, which could stall in high negative G conditions.

Similarly, the DB used the world's most advanced continuously variable speed boosting technology at the time, which could automatically adjust the boost ratio according to the height, while the Merlin used a one-stage two-speed supercharger, which had poor adaptability to height.

Every time he mentioned these things, Li Le wanted to pat his table very much, and smiled bitterly at the person in front of him: "Take a look, look at the skills played by the Germans, how high is it?" ”

Continuously variable supercharging may not have much contact with our lives, so let's not make much comments for the time being, in-cylinder direct injection technology is still one of the important technical branches of automobile engines until 2016, which shows how rebellious the German technology was in 1936.

Pity...... Against the sky on a crooked road, the faster the ancients, the more they will pit themselves and the future will come.

The DB engine, which adopted these new technologies, achieved a temporary performance lead over the British engine, but completely lost room for subsequent improvements.

The main reason for blindly launching new technologies is that after the German ME-109 series fighters were improved to the G type, their performance fell behind that of their old rival Spitfire.

Coupled with the 7.92mm caliber machine gun of the ME-109 series, this thing can only be regarded as unsatisfactory against Allied bombers in the later stage, and it is better than nothing.

In the supercharging technology route, DB chooses the route of high compression ratio and low boost ratio, the compression ratio of the cylinder is 7, and the boost ratio of the supercharger is low; The Merlin is the opposite, with a cylinder compression ratio of 6 and a supercharger with a higher boost ratio.

In other words, DB gives more of the task of supercharging to the cylinder than to the supercharger, which has the advantage of reducing the power consumed by the supercharger.

However, there are two disadvantages: on the one hand, it will increase the cylinder stroke and thus increase the cross-sectional area of the engine, and on the other hand, the greater harm is more scary, and the detailed writing can be very long.

To put it simply, it is this design that puts the later improvements on the road of no return, and the cost of wanting to improve the innovation is similar to redesigning an engine.

After nearly an hour of talking, when Tan Ke faced Li Le, he could only be described as confused.