There are still some ideas? Marcel didn't know where the Lord Kusai learned these things from. Even he, who has always been at the forefront of technology, did not think of these things. But when the other party said it, he suddenly understood that it wasn't that the case? Not to mention the use of vortex currents, it was this positive lift that could definitely increase the maneuverability of the aircraft to a higher level.

In history, it was not until the Phantom 2000-5 fighter that a small canard was installed in front of the delta wing to increase the lift of the wing, not the control surface. Zhang Feng was full of confidence in the Phantom 4000, and naturally hoped that its combat capability would be as strong as possible.[]

Thinking about the fresh ideas that might pop up in the other party's mind, and even if the price is reduced to 40 million US dollars, Dassault is actually making a profit. Thinking that the performance of fighter jets has improved, even surpassing that of the Americans and the Soviet Union's heavy fighter jets, even if it is 30 million US dollars, Marcel would feel ready to move.

"Okay, 50 million per unit, 800 million US dollars in production line." Marcel directly lowered the price of the production line, hoping to make it open and honest, and the other party would say more constructive projects.

Zhang Feng was unhappy about it. The first one was that there was no candle and the maneuverability could not be improved at medium and low altitudes. The second one was the air intake of Phantom 2000. In order to take into account the performance of high and low altitudes, pointed shock cones were installed in the air intakes on both sides, which were somewhat similar to the MiG-21's, except that the MiG-21's air intake was in the head, and a shock cone, while the Phantom 2000 was intake of both sides, with one shock cone.

During flight, air should enter the engine smoothly so that the optimal working state can be given. If the incoming airflow is sometimes strong and sometimes weak, the engine will easily get into trouble during high-speed operation. Without air, the engine will idle and the aircraft will easily stall. If there is too much air, the engine will easily stir.

When the aircraft is flying, there are very complex changes in airflow. Simply put, if the air inlet is fixed, then when the aircraft speed is high, there will be too much air. Therefore, a device needs to be installed in the air inlet to reduce the inlet volume after the speed is high.

Secondly, when the aircraft is flying supersonic, the air coming is also supersonic compared to the aircraft, and it needs to lower the air below the speed of sound. At this time, various devices are needed to pretreat the air. Dassault's best thing is to use this shock cone.

At this time, the other third-generation machines, f15, f-18, Su-27, etc., almost all use a movable baffle inside the rectangular air intake. In doing so, the bulky shock cone is removed, which is conducive to improving maneuverability.

There are two ways to remove this shock cone. One is to use a swept back double inclined supersonic air intake, also called a caret air intake. It is used on the improved version of the F-18. This is the cutting-edge of technology and is more suitable for supersonic fighters. Unfortunately, it is not suitable for Phantom 2000, which intakes both sides.

Another type is the DSI air intake that was just practical in later generations, which is used on the latest American F-35 fighter jet.

The most obvious appearance of the dsi air intake is an irregular semicircular bulge. The upper and lower sides of the bulge are almost sticking to the upper and lower lips of the intake duct, which can squeeze the attached airflow outside the intake duct, replacing the effect of the shock cone. The dsi air intake is very conducive to the stealth of the aircraft. The prominent bulge can shield the engine. The front blade of the turbofan engine is the strongest radar reflection source. Although the supersonic performance of the dsi air intake has not been essentially improved, compared with other intake ducts, the advantages are weight loss and stealth.

However, Zhang Feng was not very clear about what this thing looked like. After all, these things were already the most advanced things in the world, and Zhang Feng could only describe them. However, he felt that it should not be very difficult, because after using this kind of thing on the F-35 in the United States, the air intake of the F-35 of the United States became like this, and some people on the Internet even described the appearance of the J-10 b using this air intake.

Although this thing is completely available, Zhang Feng obviously had a high hope this time. Few people would believe it before no one saw it. A bulge can solve the problem of the quite troublesome air intake in aircraft design?

Looking at the old man Marcel, who had the strongest connection ability, he looked disbelief, Zhang Feng felt that it was a bit too early for the thing he took out.

Aerodynamics is a very complex science, and in many cases there is no formula to calculate. It takes experiments and a blow-out tunnel to know the effect. Marcel didn't know if this young man in Kusai was talking nonsense, so it was normal for him not to believe it.

Until a few years later, the Phantom 2000 equipped with the DSI air intake took off. After the test flight center, the masters in the aviation industry were very surprised by this, but Dassault was silent about this.

However, the Phantom 4000 ultimately used a shock cone. Due to its limited capabilities, Dassault could only optimize the bulge at around Mach 1.4. Heavy air combat fighters need to have the best performance at all speeds. Besides, the dual-engine Phantom 4000 doesn't care about the increase in weight brought by this shock cone, which is also the result of Zhang Feng's unintentional insertion.

As a layman, Zhang Feng’s understanding of various technologies in later generations was actually not very thorough, or in other words, the results he saw in military magazines are the true and always the secrets of each company.

Zhang Feng proposed some other ideas, such as helmet sights, infrared detection devices, and these Su-27 standard equipment, can be used on Phantom 4000. The infrared detection device can be used when its own radar is disturbed, or needs to be kept silent and cannot be turned on. The helmet sights can greatly increase the pilot's reaction speed. As long as the eyes can see it, the missile can lock the target. It is very important during close combat.

Launching missiles one second earlier is the difference between life and death.

"His Excellency Couse, we were surprised by your wisdom. I didn't expect that you could come up with so many useful insights," Marcel said.

Proposing so many insights? If I hadn't had the ability, I could only let Dassault develop heavy fighter jets. I wouldn't want to say these things, but Zhang Feng knew that although the agreement was negotiated at a very high price this time, it would definitely be a great progress for the Iraqi Air Force.

After the cocktail party, Sarah was still shocked and sat in a Mercedes-Benz. Sarah asked, "His Excellency Kusai, the deal you discussed this time is worth billions of dollars. Does Iraq have so much money now?"

Sarah knew that the deposit for the last time Iraq and Northrop cooperated with the United States was paid by Kuwait and Saudi Arabia, but it was impossible for the two countries to advance Iraq again and again!

"To be honest, there is really not that much money now." Zhang Feng said.

"Then are you so rich? You already have an F-20 fighter, do you still need this expensive Phantom 4000?" Sarah asked.

"Remember, you are my translator, not my boss, and these things must be kept confidential." Zhang Feng said.

Sarah turned her head outside and stopped talking. She originally thought that she could ask her uncle to raise more funds to provide Iraq loans, but she didn't expect that this guy was not interested!

Money, with your brother, I am still afraid of not having money? Zhang Feng thought to himself, but he has already had a direction for the recent funds.

Zhang Feng closed his eyes and a huge missile appeared in his mind.

ps:Thanks

illy

oy and Zuixiao said the rewards from their two friends!

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Chapter completed!