"Row!"

Jiang Jinlin was really not joking, he took off the big cap and handed it to Officer Ma, took the helmet that Han Xiaobei handed over and buckled it on his head.

Officer Ma didn't expect the chief to come for real, and when he saw that he was wearing a flying helmet, he was in a hurry.

"Master... Are you really flying?"

Tang Wenkai also didn't expect this kind of situation to happen.

Unexpectedly, Zhuang Yan took it seriously, and the teacher also took it seriously.

With his motherfucker...

Dangtang is the leader of a division, and the solemn upper delta wing...

"Zhuangyan, are you crazy?" He glared at Zhuangyan.

Zhuang Yan said to Jiang Jinlin, "Master, I'm just joking, don't take it seriously."

I didn't think that Jiang Jinlin would quit.

"Zhuangyan, what did you say to me just now?" He said, "There is no joke in the army. Are you kidding me?"

Zhuang Yan hurriedly said: "I don't dare, if you get on me, I'll take you to fly, I'm fine."

After he finished speaking, he turned to Tang Wenkai: "battalion commander, this is not my business. I can persuade me. This is the commander's order and I'm just executing the order."

Tang Wenkai and Secretary Ma wanted to persuade Jiang Jinlin to block: "What's the matter with you? The commander can't fly the delta wing? It's not me driving, why are you panicking? Then again, if I come here, I even approve the purchase. I wouldn't dare to sit on the delta wing myself..."

He looked back at the officers and soldiers of the reconnaissance battalion who had already looked stupid not far away.

"Can I let others sit on it? Our troops, capable officers should take the lead. Those who are afraid of death are not good officers. How can you tell me to come with me? That's it! Don't persuade them. Come on, that platoon leader... …”

He looked at Han Xiaobei: "How do you deduct this thing?"

As he spoke, he pointed to the helmet on his head.

Han Xiaobei hurried up and helped Jiang Jinlin put on his helmet.

Zhuang Yan went to check the fuel tank. He only flew twice in the morning, and he still had most of the fuel.

Check the anti-stall lever and joystick, push it to the trim position, then check the flight line and engine water temperature, reset the altimeter to zero, and start the engine.

Jiang Jinlin had already done it and buckled his seat belt.

He solemnly turned the nose of the aircraft, looked ahead, and confirmed that there were no obstacles on the ground, then released the brakes and began to slowly refuel...

Jiang Jinlin sat in the back seat with the propeller and engine behind him. He could feel the wind blowing on his back and couldn't help but look back.

Zhuang Yan saw this little movement and said with a smile, "Master, don't worry, as long as you don't put your hand into the engine, you'll be fine."

Jiang Jinlin said, "Stop talking nonsense and fly!"

Zhuang Yan responded with a smile: "Okay! Teacher, you can sit down! I'll take you to the sky for a walk!"

……

Looking at the power delta wing rising from the ground, Director Ma shook his head and said, "Our teacher... I'm really brave..."

Tang Wenkai said, "I'm afraid you won't know, the division commander used to be a paratrooper."

……

Looking solemnly at the speedometer of the delta wing, it had reached 50 kilometers per hour. He gently pushed the stick forward, and the heaven and earth line began to fall downward.

Suddenly, the nose of the cockpit tilted, the front wheels lifted off the ground, and began to lift upwards.

Majestic returned the lever to the trim position, and the two main wheels behind him lifted off the ground.

The delta wing is like a bird, leaping lightly and flying into the sky.

The scenery on the land is getting smaller and smaller. When the powered delta wing rises, Zhuang Yan slowly adjusts the inclination angle.

This time is very important.

Each delta wing has an angle of attack limit.

The angle of attack is the angle between the forward direction and the wing chord line, also known as the angle of attack, which is the benchmark for determining the attitude of the wing in the airflow.

This angle is divided into positive and negative angles - when the airflow points below the wing, it is a positive angle of attack; when the airflow points above the wing, it is a negative angle of attack.

The positive angle of attack increases, the lift increases and the rising speed is fast, but there is also a limit, which is called the critical angle of attack. Each delta wing has a different critical angle of attack depending on the design. The consequence of too much is that the lift force will suddenly drop sharply, and the delta wing will fall down due to the loss of lift, resulting in a "stall".

The same is true for negative angles of attack, too large will also cause stalls.

And there's the flight speed. Each delta wing has a minimum speed, below which there is also a risk of stalling.

The minimum speed of this delta wing is 50 km/h. If it is lower than this speed, it will cause a stall.

The current positive angle of attack is a bit too large.

When the altitude reached 20 meters, Zhuang Yan slowly loosened the control stick, pushed it back to the trim position, and corrected the left tilt.

The powered delta wing began to glide steadily in the air.

Since Jiang Jinlin looked at the sea below, the waves were sparkling, shining white under the sun.

There are many small islands in the waters near here, Zhuang Yan flew the delta wing to the nearest small island and began to circle around the island.

"Master, have you seen the small island below?"

Jiang Jinlin nodded: "I see!"

Zhuang Yan said: "This island is very difficult even to airborne, because it is all rugged hillsides and stones, and the beach is long and narrow. Even if you airborne there, you may encounter sea breezes and blow into the sea, but delta wings are fine, as long as there are 50 -70 meters of glide distance, you can land and take off."

Jiang Jinlin couldn't stop nodding, the island was at his feet, and now he could see it all.

This can also be used for reconnaissance, and if it is night, it can also land secretly.

"Actually, the ceiling of our power delta wing is still very low. When I was in Red Arrow, I tried a power delta wing developed by our army, which can fly more than 5,000 meters. Unfortunately, it failed in the limit test. Now, the research institute has also been seriously injured. We haven’t distributed our domestically produced delta wings for so many years. I’m afraid that project has also been suspended. If we localized it, the price would not be as expensive as it is now.”

He couldn't help but think of Zhang Neng.

That one-time master was also his enlightenment master on the power delta wing.

Zhuang Yan's powered delta wing also flew quite well in the special forces~lightnovelpub.net~ After Zhang Neng's accident, Zhuang Yan never saw Researcher Zhang again.

When the Red Arrows Brigade sent him to a local flying club in Beijing to learn dynamic delta wings, Zhuang Yan once saw some colleagues of the special forces and mentioned Zhang Neng. projects are delayed.

Zhuang Yan felt that it was a pity. He felt that the delta wing that Zhang Neng trial-produced back then was much better than the one he was driving now.

After so many years, I don't know what happened to Zhang Neng or the project.

He looked forward to one day when he could suddenly hear the news of the localization of the power delta wing.

Unfortunately, there has been no news.

Jiang Jinlin suddenly asked: "Zhuang Yan, what is the most afraid of delta wings encountering in the air?"

"Stall." said solemnly, "or the engine stops, but it is usually easy to restart after stopping, and the engine is very reliable."

Jiang Jinlin asked again: "You said that even if the engine is stopped, you can still glide?"

He said solemnly, "Master, do you want to try gliding?"

Jiang Jinlin laughed: "Why don't you dare? I have been a paratrooper myself, and I dare to skydive at an altitude of several kilometers. What am I afraid of?"

"Okay, let's slide him for a while."

Then I thought about the ground report in the headset: "Ground, I plan to shut down in the air, glide, please pay attention."

"What!?" Han Xiaobei laughed, and his exclamation came from his earphones: "Old monitor, you are carrying the teacher!"

"It was the teacher's request, I obey the order!"

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