Special Forces from Fire Phoenix

Zhang Lu needs this kind of ultrasonic sensing ability now. He needs to sense the situation on the ground and find the place to land.

The ultrasonic sensing ability provides a huge boost to finding the landing point. If it is normal, there is no cloud cover, and the flying altitude is continuously lowered, Zhang Lu can also see the environment below.

But not now, there is nothing to hesitate!

"Give me the seed skill Bat Flower."

After Zhang Lu made his choice, two consecutive crisp system upgrade sounds came from his mind immediately.

"Ding! The host chooses the bat flower seed, and rewards the bat flower seed essence enhancement!"

"Ding, considering the situation of the host, Bat Flower has entered the first form, please host the fusion of the first form: silence sonar!"

Silencer sonar?

What is this ability?

Zhang Lu immediately scanned the skill description, Noise Cancellation Sonar: Turn on the host's infrasonic ability, block noise, and use the noise cancellation sonar for precise positioning.

Chapter 2047 Silenced sonar, landing on an uninhabited island

"Use the seed essence for me!"

In addition to strengthening the physical fitness of the seed essence, the most important point is that each seed has the invisible internal gene for transforming the body, so that the body is more suitable for the ability of the corresponding seed.

A hot current flowed all over Zhang Lu's body, it was the bat flower seed essence transforming his body.

呲......

Zhang Lu grinned slightly, this time the strengthening was mainly aimed at the ears, as if the ears and eardrums had been pierced by thousands of steel needles, and there was a special buzzing sound in the ears.

"Ding! The host has been strengthened, all attributes are 1!" The stinging pain was only a short moment, and the system's notification sound came one after another.

XP: 3701600

After the bat flower seed essence strengthens the body, it begins to fuse the first form of sound-cancelling sonar.

Suddenly, Zhang Lu had a feeling that he could control the incitement of his ears.

Zhang Lu tried it immediately, and his ears twitched, like two miniature radars, as if they were receiving unknown signals.

Different voices start to appear!

The human ear can hear sounds between 20 Hz and 20000 Hz.Sounds beyond this range are inaudible to the human ear.So people call the sound above 20000hz ultrasonic, and the sound below 20hz is called infrasound.

In other words, there are many sounds in nature that humans cannot hear.

Unlike humans, bats make sounds by vibrating the vocal cords caused by airflow.Bats can emit ultrasonic waves with a frequency higher than 2 Hz, which is beyond the reach of human ears.

We often see bats hanging upside down on tree branches, constantly turning their mouths and noses.In fact, it is sending out signals to the surroundings, sending out 1020 signals to the surroundings per second, and each signal contains about 50 sound wave oscillations, so that two identical frequencies will not appear in the signal.

When flying, bats generate ultrasonic waves in their throats, which are emitted through their mouths or nostrils.When the sound wave encounters the prey, it will be reflected back, and the flying moth will generate pressure on the reflected wave. The faster the flying speed, the greater the pressure, and the higher the frequency of the echo sound wave.It is this echo that bats use to detect moths and other objects, so they know where their food moths are and hunt them down.

The bat flower fused by Zhang Lu is an ancient seed with a magical ability. The ears keep moving, not only listening to the surrounding sounds, but also sending signals to the surroundings. Like bats, they can emit ultrasonic waves.

Ultrasonic waves penetrate the thick clouds and continuously feed back to Zhang Lu. In this way, he can sense the situation inside the clouds.

Thunder and lightning flashed, and electric snakes were swimming away.

Through induction, the flight altitude is continuously lowered while avoiding lightning.

At present, the range that Zhang Lu can detect is linked to his physical attributes, and he can only detect within a radius of 2200 meters.

Pushing the joystick, he descended all the way to a height of 2200 meters, and checked the situation below with his ears.

Because of the bad weather, dark clouds covered the sky, and the eyes of the other shore could not penetrate the clouds, so they could only rely on the modified ears.

Under the constant stirring of his ears, Zhang Lu's expression suddenly brightened.

Just now, the ear kept feeding back information, and there is a sea area below. I glanced at the fuel level, and it can't last long.

If the island cannot be found as soon as possible, the plane can only smash into the sea, and there is basically no possibility of survival.

Suddenly a different sound came from the ear, this is the sound wave that was sent back when the ultrasonic wave touched the ground, and it was different from the sound wave that touched the sea surface.

"It must be an island!"

Zhang Lu quickly lowered his flight altitude and flew towards the area where the sound waves were fed back.

It really is an island!

As the altitude decreased, Zhang Lu could already see the island below.

This island is not very big, about [-] square meters. There are mountains on the island with lush vegetation. On the other side is a sandy beach, where you can faintly see white gravel.

Fuel has bottomed out at this moment!

Although this island is not an ideal place for an emergency landing, there is no choice.

"The plane is about to make an emergency landing. Passengers, please fasten your seat belts and hold on to the armrests..." Zhang Lu informed all passengers through the radio.

The stewardesses like Xiao Qing kept repeating what Zhang Lu said, and Chen Shanming, He Chenguang and the others quickly got to the nearest position and fastened their seat belts.

Everyone is facing an enemy, life and death are at this moment!

After all, the emergency landing is not 100% successful. Once the plane explodes, the consequences will be disastrous.

The corners of the mouths of many passengers kept wriggling, silently praying...

Zhang Lu, who is in control of everyone's life and death, chose to make an emergency landing from the direction of the beach.

500 m.

200 m.

After the plane circled the island, it swooped down and made an emergency landing from the direction of the beach.

The plane clings to the surface of the sea, wrinkling the surface of the sea, and finally rushes onto the flat sandy beach.

boom!

The plane shook violently and slid all the way, plowing a big ditch on the ground. The nose of the plane kept filling the big tree behind the beach, sparks flickered, and finally stopped.

All the windows in the cab were shattered, and the instruments were smoking, but no open flames had yet been ignited.

And Zhang Lu who was flying the plane, who was sitting in the pilot seat, could no longer move!

what……