Chapter 494: Landing successfully, encountering a "dolphin jump"
The backup power supply is completely exhausted, and now the plane is completely powered off.
Jiang Chen glanced at the dark dashboard.
After the fighter plane flew about 100 meters along the runway, he gently pulled up the nose to ensure that the landing gear was the first to land after the aircraft.
Jiang Chen is actually very risky to do this.
Because the cockpit has been completely powered off now.
He can only check the aircraft's status by intuition rather than through the instrument, and he does not know the aircraft's altitude and angle.
However, as a Lao Fei who has been flying for more than ten years, Jiang Chen's intuition is still relatively accurate.
As expected.
Just after he pulled up the head a little.
Bang!
The rear landing gear of the plane hit the runway heavily.
The huge rebound force instantly acted on the aircraft fuselage, and immediately rebounded the aircraft into mid-air again.
Then under the dual action of inertial velocity and lift.
This J-11b fighter actually started flying along the runway again.
grass!
Dolphin jump?
Jiang Chen was shocked.
The worst case, the most ruthless killer move finally appeared at the last moment.
The so-called 'dolphin jump' refers to the abnormal pitch and shock phenomenon that occurs during the flight of the aircraft, which usually occurs during the landing stage.
If the aircraft encounters a "dolphin jump", it will cause the aircraft fuselage to constantly bump and even sway up and down.
It's like a frightened wild horse.
Even though the reins had already covered their heads, the rider had already jumped onto the horse's back.
But he still kept roaring and jumping, as if he would not give up until he threw the rider off the horse.
Jiang Chen is now riding on the horse.
And this J-11b, which is on the verge of losing control, is the wild horse that has been out of control.
If Jiang Chen had no other way.
This wild horse probably pushed him off the horse immediately.
Then I guess I will have to sing completely.
So when Jiang Chen judged that the plane had encountered a "dolphin jump", he immediately responded.
He immediately pulled the operating lever backward and pulled the nose of the aircraft up again.
Drop the flap and spoiler at the same time.
Reduce the lift of the aircraft.
Asolutely.
After he responded, the plane flew about 20 or 30 meters along the runway, and the rear landing gear once again hit the runway.
This time.
The plane did not bounce up again like before, but began to slide along the runway after a bump.
The next second.
The front landing gear also hit the runway heavily.
Jiang Chen's hanging heart finally returned to his stomach.
There are many reasons for the aircraft's "dolphin jump". For example, the pilot's operation error did not pull the aircraft into a two-point landing posture, but was grounded in a three-point position (the front and rear landing gears were smashed on the runway at the same time).
This causes the shock absorber of the aircraft landing gear to produce a greater rebound force, which increases the elevation angle and lift on the aircraft, causing the aircraft to obtain lift and bounce back.
Or or the plane's landing posture is a two-point posture, but the height from the ground is high, the reaction force of the main wheel is large, forming a head-down torque. The pilot did not carry the pole, and the landing gear hit the ground again, causing the plane to jump.
Or the plane encounters severe weather such as strong airflow and crosswind.
Or the plane has malfunctioning equipment.
There are many reasons for ‘dolphin jumping’ and it can easily lead to extremely serious consequences.
The reason why this J-11b encountered a "dolphin jump" is simple, that is, the engine of the aircraft failed to stop, and the backup power was exhausted, the pilot had glided for hundreds of kilometers. There is no way to slow down during the landing phase.
When the plane hit the runway, it triggered the landing gear shock absorber.
So the plane bounced back into the air again.
But ‘Dolphin Jump’ is just a small episode.
Although the plane has landed steadily on the runway and started running along the runway, it does not mean that Jiang Chen is already safe.
Just after the second landing of the plane.
Jiang Chen quickly turned on the scooter lights, landing lights and speed reduction parachutes one after another.
But what surprised Jiang Chen. When he pressed the button of the reduction parachute plan, the plane did not respond at all.
Failed to put the umbrella?
These four words immediately appeared in Jiang Chen's mind.
Know.
The fighter can easily land at a speed of more than 200 kilometers per hour.
Although this J-11b fighter has glided for hundreds of kilometers, its current speed remains at 250 kilometers per hour.
Another waste of a long run distance because of dolphin jumping.
This causes the runway to be short.
In fact, the best way to solve the problem of "dolphin jumping" is to go back to fly.
Most pilots choose to go back to flight after encountering a "dolphin jump".
But Jiang Chen can't.
No mistakes, one song, one content, one in 6, one book, one bar, one reading!
It's not that he likes to be cool and special.
But this J-11b fighter engine has no way to provide thrust at all.
A plane without sufficient power.
What a fuck?
So after finding that the speed reduction parachute could not be opened, Jiang Chen wanted to punch the cabin dashboard.
Fuck you uncle.
This is really a rainy night.
The plane landed successfully.
The speed reduction parachute cannot be opened.
The slowing of the passenger plane after landing depends mainly on reverse thrust, and the slowing of the fighter after landing mainly depends on the speed reduction parachute.
The J-11b's speed reduction parachute cannot be opened now, which is as thrilling as the passenger plane's reverse push device failure.
"Calm down~~~Calm down~~~Calm down~~~"
Jiang Chen took two deep breaths.
Forcing yourself to calm down.
"How did I solve the problem of the thrust device last time? Yes, it slows down by the length of the airport."
"But my fucking runway is now half over, and the speed of the plane still cannot be reduced. .”
“What to do? What to do? ”
Far from afar.
Weifang Station Tower.
The controller has also found an exception.
So quickly reminded loudly, "Guizhidou, put the umbrella, put the umbrella, your speed reduction umbrella is not opened, your speed reduction umbrella is not opened."
Jiang Chen shook a little irritatedly Shake your head.
Fuck.
I don't know if the speed reduction parachute is opened?
Want you a reminder?
Jiang Chen gritted his teeth.
Hold the operating lever with one hand to ensure that the aircraft's taxiing posture remains stable.
Then press the speed pedal hard.
There can only be used for emergency brakes.
Yes.
In the event of an emergency situation such as the speed reduction parachute being unable to be opened, the pilot can activate emergency brake activation by operating a specific handle or foot pedal.
As long as the emergency brake is activated, this device can provide maximum braking force to ensure that the aircraft can stop in the shortest time.
But emergency brakes also have a big disadvantage.
That is that it is easy to cause the aircraft to completely lose control and rush out of the runway.
Although the design of the emergency brake device of the fighter jet is very complicated, its design concept is similar to the brake principle.
When the bicycle is braked, it only needs to pinch the brake handle and tightly press the brake pads and the wheels through the brake line to achieve a braking effect.
The emergency brake of the fighter aircraft is at this time through the friction between the brake pads and the brake discs, reducing the rotation speed of the wheels, thereby allowing the aircraft to quickly slow down.
(This chapter ends)