The Cessna 152 is a classic, but also very basic.

Its oil supply system is the most primitive gravity oil supply, so it cannot be in an upside-down state for a long time. In contrast, the newer Diamond 20 is equipped with an auxiliary power oil supply system, which generally does not cause the oil supply to break.

Xu Qing calculated everything, but he really didn't expect that Cessna 152 would also have poor oil supply under a large head-up attitude.

POWERONSTALL simulates a stall caused by too large an attitude during takeoff. IN CONTRAST TO THIS, THERE IS ALSO A POWEROFFSTALL. This is a simulation of a situation where there are too many rods and a stall during the landing phase.

When doing POWEROFFSTALL, you need to release the flaps, retract the throttle, and then keep the lever back until the plane stalls

Both of these stalls are subject to practice during the private phase, and there is actually a movement called "SPIN", which is a spiral.

That is, when the stall is blowing, a rudder, then the plane does not fall straight down, but spirals down.

To change this action, you need to step on the rudder and stop the plane from turning in circles, otherwise the plane will turn faster and faster, and it may not be able to change.

Therefore, the action of spiral is dangerous, generally if Xu Qing does it himself, at most three turns, Xu Qing will try to change it, and then turn Xu Qing is not sure.

The engine stalled, and the aircraft immediately changed from a head-up posture to a downward state. However, one by one, Cessna's aerodynamic structure is quite good, and the descent rate is not large even in the unpowered state, and it maintains good gliding performance.

If gliding performance is desired, the Diamond 20 is undoubtedly superior.

The slender fuselage and wingspan far exceed that of the Cessna, making the Diamond 20's performance even more outstanding in unpowered gliding.

Mei Tingting looked at the propeller that was already stalling in front of her, it was really a dead soul.

On the other hand, Xu Qing is not so afraid, and it is not true that the engine is broken, and the fuel supply is not available, so it will not work if he starts again?

Don't start like this, in foreign countries, Xu Qing has encountered the situation of engine stalling more than once, one of which was until it landed, and the engine was still stopped.

The ups and downs of the warm-up just now, the last lap is to retract the throttle and let Xu Qing fall, this kind of special situation is strictly trained, don't be so afraid.

And it's not as large as the 737, it's heavy, and there are strict requirements for the docking area. Cessna can force the ground in many places, and Xu Qing has tried to land on the grass. Of course, it's not the kind of grass with soft turf, it's the kind that is relatively hard.

Some of his fellow aviation school members had been forced to land on the road.

For a plane like Cessna, Xu Qing actually looks more like a toy, how to fly the school

After the attitude of the plane was normal, Xu Qing restarted the engine. As Xu Qing expected, the engine only stalled due to insufficient fuel supply, and there was no other major problem.

Seeing the engine running again, Mei Tingting breathed a sigh of relief. complained vigorously that Xu Qing was flying around, and shouted to go back. Xu Qing can only ensure that the back flies normally, and never plays some bells and whistles, Mei Tingting is the only one who stops.

Xu Qing and the others flew one by one according to the scenic spots marked on the chart.

Each attraction is numbered on the chart, and the location data of the attraction is entered into the aircraft's navigation database. Xu Qing found a series of numbers in the preset location of the on-board GPS, and each number corresponds to a scenic spot.

The Cessna 152's navigation system is not as advanced as that of the 737, and can only connect a straight line on the navigation screen. One end of the straight line is the position of the aircraft, and the other end is the destination. All Xu Qing had to do was keep the plane in this straight line.

The Cessna 152 also does not have an autopilot system, and all of them fly by hand. The slightly larger Cessna 172 has simple autopilot, but it is a heading selection and vertical speed.

However, the course selection and vertical speed are also sufficient in the case of normal cruising and low precision requirements, which can save a lot of energy.

Like Xu Qing's current situation, while maintaining the state of the plane, we must also pay attention to the problem of navigation. Although it is not a difficult task, it is still a little tiring after a long time.

The key is that Mei Tingting can't open it, only Xu Qing is the one who controls it, and he can't take some beautiful scenery, so he can only look at it.

However, Mei Tingting was afraid and anxious from the beginning, but after a period of adaptation, she relaxed a lot, and Xu Qing stopped being a demon after that, and then she began to spontaneously take photos outside.

These marked scenic spots are mainly some lakes located in the deep mountains, and the ground transportation is inconvenient, so you can only see them from the air.

Such a scattered lake is like a sparkling diamond set in the mountains, which is very beautiful.

Because the surrounding mountains are not very high, when encountering some lakes with relatively gentle terrain, Xu Qing also deliberately lowered the height so that Mei Tingting could see more carefully.

In the lowest place, Xu Qing is almost close to the plane on the lake, and further down is the "wheel washing" in the cross.

Although Xu Qing had heard the method of "washing wheels" in domestic aviation schools, he had never tried it abroad. Today's wind and waves are calm, full of good spirit, it is a good time to "wash the wheel", which makes Xu Qing's heart itch and wants to try it.

It wasn't until he was targeted by Mei Tingting's murderous gaze that he gave up, estimating that Xu Qingzhen would "wash the wheels", and he would definitely be cleaned up after he landed.

However, I can't do it today, the next time I come to S City for the night, I can fool the captain to come over, find a good gas, wash the wheels for Cessna, and think about it.

The attractions flew around one by one, Xu Qing looked at the time and saw that it was almost over, so he discussed with Mei Tingting and began to fly back.

It's just that the more he flies back, Xu Qing found that there are more and more clouds, and they seem to be getting thicker and thicker, when this first came out, it was just some scattered flocculents, how could it develop so quickly after more than a while.

Cessna 152 can't pierce the clouds. Don't get too bad about not going back.

Xu Qing immediately adjusted the airport frequency of the aviation school, inquired about the situation of the field, and got the news that the field is now low and cloudy, and it cannot meet the requirements of visual approach.

Xu Qing exploded now, but when they set off, they looked at the weather forecast, and there were no low clouds, isn't this engaging them?

Moreover, according to the people of the aviation school, this low cloud could not be dispersed for a while, so Xu Qing approached the field for a while, and hovered and waited for a while.

Xu Qing looked at the clouds that were as thick as cotton quilts, which could not be dispersed in a short period of time, and it was in vain to wait, so he asked directly: "Is the airport in S City also a low cloud, if I can, I will go there first to make an alternate landing!" ”