The altitude is 3,500 meters, the speed is 70 kilometers, the route is correct, and there are no errors.
With his eyes focused, Zhou Hai's face was solemn and solemn, and his voice was strong and steady: "Remember, Master."
"What is the definition of stalling?" Li Fu nodded and asked casually.
The theoretical definition of stall came to Zhou Hai's mind, and he replied: "The lift coefficient of the aircraft increases as the angle of attack of the aircraft increases. When the angle of attack increases to a certain angle, the lift coefficient does not rise but decreases, causing the aircraft's lift to be less than the aircraft's gravity. Eventually the wing loses pressure differential and loses lift, causing it to fall, a phenomenon known as stalling."
Li Fu continued to ask: "What is the meaning of minimum speed?"
"The lower the minimum speed, the shorter the takeoff distance and the corresponding airport runway, which greatly reduces ground dwell time and improves safety and maneuverability." Zhou Hai answered without hesitation.
“What’s the significance of low-altitude and low-speed performance?”
"Whether low-altitude and low-speed performance is excellent is an important indicator for measuring the performance of a fighter aircraft. Generally speaking, excellent low-altitude and low-speed performance means stable flight status, stable ground attack, high lift coefficient, excellent overall maneuverability, high airflow resistance, and low-altitude and excellent ultra-low-altitude flight status.”
Zhou Hai looked calm, spoke forcefully and clearly, and replied slowly: "The poor performance at low altitude and low speed means it is easy to crash."
crash.
Yes, that's right.
Poor performance at low altitude and low speed has only one consequence - easy crash.
Of course, this description is rather euphemistic, using professional aviation terminology as 'flying coffin board'.
Coincidentally, the F-04 supersonic fighter historically equipped by the U.S. Air Force was awarded this title by the air forces of various countries.
Low-altitude and low-speed performance is an important indicator for measuring the maneuverability and performance of fighter aircraft.
"good."
After hearing the content of Zhou Hai's answer, Li Fu praised him and did not continue to ask questions. He maintained a level attitude and flew along the predetermined route.
Maintain a cruising speed of 70 kilometers per hour, altitude 3500, direction due north, destination-Dan Town training base 580 kilometers away.
As for Zhou Hai's previous ideas and maneuvers, none of them were realized.
An imaginary aircraft flight?
nonexistent.
Really just imagine it.
However, this is always good. After all, he is already three years ahead of his peers at the aviation school, so he is not in a hurry. ..
The rest of the flight was quiet and uneventful. Li Fu kept flying smoothly and did not continue teaching.
Zhou Hai also gradually calmed down his emotions, adjusted his mentality, regained his composure, and accepted the situation that he was about to get on the plane.
Excitement, joy, and anticipation, these emotions have all disappeared, leaving only a calm heart.
The sky is slightly dark.
The unique roar of the front-piston-star nine-cylinder aviation engine resounds through the sky.
…
In a blink of an eye, it was already afternoon.
After a flight of about three and a half hours, the JJ6 carrying two people crossed a distance of 580 kilometers and flew into the airspace outside the Danzhen training base. At this time, only 0% of the fuel on board was left.
On the ground, the silver-covered Danzhen training base comes into view, with the iconic straight runway, towering tower with radar antenna, and low-rise buildings.
In the apron area at the edge of the airport runway, a series of military green JJ6s were parked in an orderly manner and lined up.
"Buzz!"
In the dark sky, two Chujiao 6s formed a double formation, passing at high speed a few hundred meters below Li Fu and Zhou Hai, flying freely and making a huge roar.
On the west side of the base, six JJ-6s formed a triangular formation, which was huge and particularly spectacular.
"Call the tower, trainer aircraft No. 2 requests to land."
Li Fu held the control stick, slowly lowered the flight altitude, turned the nose of the aircraft towards the runway of the base, turned on the airborne military radio communicator with his hand, accessed the dedicated encrypted communication channel, and called the ground tower.
"Buzz!" Suddenly, Zhou Hai, who was observing the ground base, his eyes narrowed, and the sound of engines with different rhythms could be heard in his ears.
"Master!"
Zhou Hai raised his head and looked up at the sky. He saw a No. 6 Chu Jiao Six, like a fierce eagle, swooping towards him with great momentum. The hydraulic double-blade propeller at the front end formed an afterimage, and he was shocked. , quickly reminded Li Fu.
What is this for?
Had an accident?
When the height difference between the two aircraft was only about 30 meters, the JJ-6 suddenly rolled to the right, flipped three times continuously from the center of the sky, flew to the right side of its own fuselage, then leveled and stabilized, and began to fly with it.
Bold and precise.
After some operations, the distance between the two machines was only less than ten meters.
"Gulu..." Zhou Hai swallowed his throat, eyes as wide as copper bells, and through the protective glass of the cockpit, he could clearly see the No. 6 No. 6 aircraft on the right side of the fuselage. Sitting in the front seat was a man of about forty. A flight instructor who is around 20 years old.
In the back seat was a young pilot student, wearing a leather hat, with a calm and calm expression, without any fluctuations.
Li Fu glanced to the right, stabilized his body, and didn't care. With an indifferent expression, he wrote lightly: "Oh, it's okay, it's the old guy's way of greeting."
"..." Seeing this, Zhou Hai was stunned and confused.
this,
this,
Is there still such a way of greeting?
Zhou Hai was completely stunned by such a unique way of greeting.
Who the hell is this brave and talented person who dares to fly like this?
At the same time, the base tower's voice sounded in the dedicated encrypted communication channel: "Trainer No. 2, northwest wind, wind speed level 3, gust level 5, field pressure 04, landing approved, runway 1 has been cleared."
"Received on the 2nd, prepare to land." Li Fu's voice was calm.
"Old Li, long time no see, you're picking up a rookie so soon?" At the same time, the slightly hoarse voice of flight instructor No. 1 came out from the encrypted channel.
Li Fu locked his eyes on the base's No. 1 runway, and spoke calmly and forcefully: "Fan Goudan, your skills have declined a bit. It's usually about eight meters, but now it's ten meters, right?"
"Old squad leader, I told you, don't call me Fan Goudan!" The flight instructor's huge roar came from the radio channel.
Li Fu said calmly: "Oh, Fan Goudan, you still owe me a meal, when will you pay it back?"
"..."
There was a burst of noise in the radio channel.
No. 11 No. 6, flying on the right side, raised the nose of the aircraft and rolled and dived down to the right, flew out in a large arc, and then left.
"Ha!" Li Fu sneered. While lowering his altitude to face the approaching runway, he said to Zhou Hai: "This old guy's name is Fan Erqing. He is a flight instructor at the base. His flying skills are average. If you encounter him, you're welcome. Give it to me." Fight hard."
"..."
Zhou Hai didn't say anything. He looked at the ground getting closer and closer, and wanted to remind you, can you land safely first?
