However, it is not that Brother Zhu Zi can't fly, Zhang Lan even personally tried to let the column car fly, and the flight speed is not weaker than that of a fighter jet, but if a big car suddenly flies in broad daylight and in full view of everyone, Zhang Lan still feels that it is still too shocking, and ordinary people may not be able to accept this fact.

At the very least, this last resort to save your life should be used when necessary! Who knew this car of mine could fly? Not only can it fly, but it can also interfere with radars and missiles.

Anyway, it was boring to be stuck in traffic jams here, and Zhang Lan couldn't help but start wondering: since it is impossible to use a helicopter in a traffic jam, it is impossible to let Brother Zhu and Brother Iron Sheet fly, and even more so a paramotor and power delta wing, what should I do? Alas, damn it, except for Beijing and Shanghai, my own helicopter can go there! I just have the most time to come to the capital! Depressed!

Zhang Lan knows that within the scope of the capital, the flight control of aircraft is extremely strict, except for military aircraft, for commercial aircraft, can only follow a fixed flight route, as for civilian aircraft, sorry, it is not yet possible. Moreover, I heard that as long as it seems to be a UFO flying at an altitude of more than 80 meters, if it ignores the warning of the military in the capital and continues to go its own way, or judges that it seems to be hostile, it can directly open fire and beat it down.

As for why it is 80 meters, of course, the minimum detection altitude of the anti-aircraft search and warning radar is 80 meters, and the radar of flying objects below 80 cannot detect it -- but now there are not many buildings in Beijing that exceed 80 meters, and there are also buildings that exceed 1 meter, and this has invisibly increased the difficulty of the work of these anti-aircraft search and warning radars. It is said to be 80 meters, but Zhang Lan estimates that if the influence of high-rise buildings is excluded, it should be at least 120 meters above to be effective.

Having said that, it seems that at present, no one seems to have dared to challenge this bottom line: after all, what kind of place is the capital!

80 meters? Zhang Lan was suddenly stunned: 80 meters high, flight control is a problem, what if it is a ground effect aircraft? Speaking of ground effect aircraft, the rise of this is only a brand new aircraft that has not lasted for a long time, and it is impossible not to mention this ground effect.

The so-called ground response refers to the effect that the aircraft flies at low altitude and produces a kind of effect on the ground during take-off and landing, which reduces the wing-induced drag, increases the lift-to-drag ratio, and significantly increases the lift of the aircraft.

Aircraft designers found a very interesting phenomenon in the wind tunnel test, that is, when the wing height from the ground is 15% of the wing length, the ground effect of the aircraft is the most obvious, and the lift-to-drag ratio of the wing can be increased by more than 30%, this area is called the ground effect area. Flying in the ground effect area is like being gently held up by a mysterious force, so some people jokingly call the "ground effect" the "hand of God".

With this unique effect aircraft, the flight altitude is generally less than 1 meter, usually to 1 meter, and the maximum flight altitude of large ground effect aircraft can even be higher. It is like the famous "Caspian Sea monster" of the former Soviet Union.

Uh-huh. This east is good! Zhang Lan shook her head proudly.

Well? Suddenly, Zhang Lan realized that he had forgotten a very important practical problem: the damn thing about ground-effect aircraft. If you want to fly, you still have to use the lift of the wings to do it. Then naturally the long wings are indispensable. Even if it's a small ground effect aircraft. If you want the ground effect aircraft to fly. From a safe point of view. Then this damn ground effect aircraft must have a flight altitude of at least 3 meters. This means the length of the wings of the damn ground effect aircraft. It is necessary to reach more than 20 meters of ground. 20 ground wing length. Very good. The two-way six-lane road is basically occupied by itself. Cars from other places don't want to play.

Wing Dead Wing! Zhang Lan was depressed for a while: The ground effect aircraft can't be completed. There's no way to talk. You can only think of a way from the lift side. To be able to take off and land vertically, not to fly too high. It should be easy to maneuver because of the low flight altitude. So the security needs to be better. Well. Zhang Lan's eyes lit up: The British "Harrier" fighter seems to be a good example.

Of course. The safety of this plane is really poor.

The British Harrier fighter was the world's first practical jet fixed-wing fighter. It is the use of a rotatable ground tail nozzle design -- this kind of famous ground fighter Zhang Lan is no stranger. I believe that many people will not be unfamiliar. Muscular man Arnold is in the "True Lies". The performance of the "Harrier" fighter piloted by Brother Harry left a deep impression on Zhang Lan. I believe it has also left a deep impression on many people. Although this VTOL ground jet fixed-wing fighter has many disadvantages. But after all, it's a huge leap forward in technology -- with this kind of design. During the "Harrier", the ground control of the fighter jet has very little requirements for the wing surface of the aircraft compared to other fighters. Whether it's adjusting the heading or flying altitude. It needs to change

The ground angle of the tail spout can be.

You can figure it out for yourself! Zhang Lan tapped her head lightly and began to ponder the feasibility of adopting a design method similar to the tail nozzle of the "Harrier" fighter: without using wings, four engine tail nozzles with adjustable angles are installed at the bottom of the car, and the car can take off calmly even if it is like herself, and does not need to use a certain distance of taxiing like other aircraft. With these four tail vents, as long as you don't need to fly too fast, then it is enough to use the lift generated by the tail vents to stabilize the body without wings. Well, in fact, if this is the case, it is not impossible to use a tail spout, but the tail spout at the tail should be designed to be flexible in the hemisphere; type, the turning area is like half a watermelon cut in half with a knife! -- The only disadvantage of this is that the problem of power waste is more serious, and the full-motion tail nozzle also brings certain hidden dangers to safety.

Since take-off is not a problem, then the problem that plagues this kind of aircraft is the turbofan engine with small size and high thrust-to-weight ratio. As far as I know, I don't think there is a turbofan engine in the world that can fit into the engine compartment of a car.

Well, the design of the engine is not a problem, it's just not known how much such a car will cost? Zhang Lan blinked: The cost of just such a turbofan engine is not low, right? However, since it is for its own use, it doesn't matter, maybe it can be sold to the military as a new ultra-low-altitude assault equipment at that time? ,

After thinking about it, Zhang Lan felt funny again: If it is used by the military, a simpler ground effect aircraft is enough, and this thing is still needed? At the very least, the cost of ground effect aircraft is much lower. With this thing, ahem, the cost-effectiveness ratio is inevitably too low, and those guys in the military are porcelain roosters, and they don't pull out a hair--at least the iron rooster will fall a little rust from it.

If you can, it's not bad to build two cars like this! Zhang Lan was thinking wildly, at least if this small turbofan engine was successfully developed, it would be very good to apply it to small ground effect aircraft and small private business aircraft.

is Zhang Lan there Hu Si chaos; At the extreme, a dissatisfied voice sounded: "What are you thinking, it's time to go!" Also, please don't think about those lewd things in the future. ”

Shocked by this, he hurriedly looked up, and suddenly sweated: But isn't it, I have been thinking about it here for a long time, and I don't know when the blocked road has been opened, and Brother Zhuzi has already taken himself to the gate of the compound where Brother Hu and his family live.

Looking down at the steering wheel again, Zhang suddenly had a shameful face: his saliva really flowed on the steering wheel! It's no wonder that even an honest person like Brother Zhu is pregnant with some messy things that he doesn't know what he's thinking. Generally speaking, according to Brother Zhuzi's experience, people who can drool to this extent and are okay and are unaware of it themselves are, without exception, thinking about the dirty things between human beings.

In addition, Brother Zhuzi's so-called experience is seen from some messy novels and movies, including "Golden Vase Plum", "Monk of Dengcao", "Official, I Want" and "Jade Futon".

Listening to the lewd laughter of Brother Zhuzi coming from the speaker, it seems that this guy is very clear about everything that Zhang Lan is thinking in his head. Regarding Brother Zhuzi's dirty thoughts, Zhang Lan only had to smile helplessly: What can he do with this ancestor? I can't beat and fight, I can't scold and scold, except that I really can't do anything about it.

Anyway, no matter what this guy thinks, he won't lose a piece of meat on himself! Go whatever he wants! Zhang Lan, who had no choice, could only comfort herself like this.

Zhang Lan doesn't know how many times he has been here, but with Zhang Lan's arrogant to the extreme, there are only two super cars in the world so far, the guards in the compound know who is coming and what they are doing, and they nodded at Zhang Lan with a smile, and did not check, let Zhang Lan slowly drive in - anyway, there is a scanning device at the moment of entering the door, as long as it is found that something is wrong, the alarm device on the scanning device will call the police, and they don't have to check the car. Besides, maybe now that I have a good relationship with this kid, I may be able to find a good job in their Alice Group in the future, I heard that there are many brothers who have been discharged before and are quite good in their Alice Group.