"Aircraft factories in the region: If we want to build an independent aviation industry, then we have to learn how to assemble aircraft and how to maintain existing ones.

Vesting time: 48 days

Results: Obtained part of the information of AVIC's westward flight in 1958 (excluding jets), and obtained five researcher-level senior engineers.

Enabled Manufacturer: AVIC West, the effect is (Aircraft production speed in the military factory in the system: +15%, Heavy Fighter Reliability +20%, Tactical Bomber Bomber Reliability +20%)

Special note: all manufacturers can be stacked, for example, the Sino-German Technical Mission and the Morozov Design Bureau can be selected as tank builders at the same time."

After seeing the word Xifei, Huang He immediately felt that the trainer aircraft was not a problem, but a large company that developed and produced the Flying Leopard and the H-6.

Even if it's just a material from the Propeller Era, it's definitely enough to benefit researchers of the current era.

The arrival of those five aircraft design professionals is even more powerful, and their arrival can increase the speed of development by at least half.

You must know that the researcher-level senior engineer is one of the highest ranks in the qualification title of the engineer in later generations, and even a large company of Xifei's level has only twenty-one.

If the second branch can digest all these gains, and cooperate with the factories unlocked in the next decision, it is estimated that the border area will be able to develop and produce Chujiao-5 and Chujiao-6 in 1941.

However, if it is really built, it is more suitable to be a high-level training aircraft in this era.

After all, the two of them are the products of more than ten years later, and now the ugly country is still using the J-3 cub to enlighten the pilot.

Directly using a monoplane that surpasses too much of the current era as a primary trainer aircraft is more or less underconsidered.

In the plan of the Yellow River, the future primary training aircraft of the Border Region Aviation School will definitely be a biplane light aircraft with a simple structure, easy to fly, and low price.

Then after the baptism of the castrated horsepower version of the fighter fighter and the Chujiao-5, the fighters can basically officially enter the battle sequence of the First Air Division.

The reason why I chose the first school-5 is not the well-received first-time school-6.

That's because the latter was designed with the training of jet fighter pilots in mind, and the landing gear adopted the front three-point type, which was very different from the mainstream rear three-point design of the World War II era.

The planes on the battlefield now are all powered by piston propellers.

In aircraft with a rear three-point landing gear, the nose tilt allows room for large-diameter propellers, while the small tail wheel also greatly reduces the weight of the structure.

This design is perfectly in line with the industrial concept of being simpler, more reliable and safer.

————

In the busy work, the time came to December 31st.

Today is the last day of 1940, which means that the big news from the south is getting closer and closer.

Although the fighters are not proficient enough to fly the C47 transport aircraft, the situation must now be overcome to set out to transport aid.

After arranging the work of the first section, Wang Dexing took the Yellow River and drove from the bureau to the border airport.

When he was still ten minutes away from his destination, the young guard in the driver's seat suddenly pointed to the sky excitedly, and he didn't even look at the road conditions for a while.

"Director! Look! It's our plane! Not Spitfire! It's a fighter! ”

No young man can resist the temptation to soar above the blue sky, and as a guard of the Yellow River, Wang Dexing has the opportunity to get up close and personal with every plane at the airport in the border area.

Although his level of education was not enough to pass the entrance test of the aviation school, he still memorized the name of each aircraft.

After hearing the cheers of the guards, Huang He stuck his head out of the wheelhouse.

The biplane fighter in the sky was doing some of the most basic flight maneuvers, and it looked like the cadets of the aviation school were training.

"Drive a little faster, let's rush to the airport now and have a chance to see the process of landing."

"Okay! You sit tight! ”

After coming to the airport, Huang He told Wang Dexing to go to the parking lot to park first, and he ran straight near the road. There were a lot of trainees and instructors who watched the take-off and landing of the fighters, and it took him a little effort to find Principal Chang from the crowd.

"The progress of our academy is very fast, has it only been a little more than a month since we started to practice flying skills? What's been going on lately, and have there been any surprises? ”

Originally, Principal Chang was staring intently at the fighter fighter that was about to land, and after hearing someone next to him speak, he subconsciously replied:

"There are definitely accidents, and we've been trying to avoid casualties these days."

"It's the third day of on-board training, and there's already an aircraft that needs to be overhauled. Yesterday there was a cadet who mishandled and broke the propeller and engine during landing. ”

"Although the person is fine, I feel sorry for the plane when it breaks down! It will definitely not be easy for Director Huang to get back so many planes, and it will be troublesome if he can't replenish them. ”

The accident that Principal Chang said happened yesterday when the students were practicing ground gliding.

Many people think that taxiing is not difficult at all, just turn the engine up and slide and you're done.

Such an opinion is a very common mistake, and the ground taxiing of a rear three-point aircraft is like an artillery calculation of the distance to the target, which is an absolute basic skill.

The main reason is that the main landing gear of the aircraft is located in front of the center of gravity, and once the yaw moment is generated by lateral disturbance during taxiing, the ground friction will give the main landing gear a force in the same direction, which will further lead to the aggravation of yaw.

Once the trainee is overly nervous, the rudder correction is not accurate, and it is easy to turn at a large angle.

Yesterday, it was because a fighter fighter was taxiing too fast, causing the tires to be knocked off, and even the landing gear was broken.

When he said this, Principal Chang suddenly realized that the person next to him was the Yellow River. He hurriedly said hello, and then took the other man's arm and went to the best position to watch the landing.

An aircraft will be divided into two types according to whether the landing gear can be retracted, namely fixed landing gear and retractable landing gear, and can also be divided into the first three points and the last three points according to the arrangement form.

Aircraft with rear three-point landing gear need to do targeted training, mainly because the instructors take into account the inherent course instability of the rear three-point landing gear.

The trainees have just finished learning aviation theoretical knowledge, and aircraft technology is still in the exploration stage.

In the face of many rookie novices, the instructors gave priority to teaching a relatively simple three-point grounding.

The so-called three-point grounding is to let the two main wheels and tail wheels be grounded at the same time, so that the angle of attack when grounding is larger, and it can land at a lower airspeed.

"Director Huang, take a look, the plane is about to land. This is the student with the most solid theoretical knowledge in our aviation school, and he has a high probability of entering the combat sequence. ”

Hearing Principal Chang's reminder, Huang He immediately raised his head and stared at the fighter fighter.

With the runway aligned on five sides, the aircraft descends steadily at approach airspeed.

Judging from the smooth fuselage, the trainees must have softly retracted the throttle when entering the airspace over the runway, and appropriately resisted the rudder to maintain direction.

The current situation made Principal Chang smile slightly, and it could be seen that he was very satisfied with his students.

"Director Huang, I'm not wrong, the pony is a good seedling. Now the power of the aircraft has decreased, and the airspeed has begun to decrease. ”

"At this time, it is necessary to pull the rod accordingly according to the speed of the aircraft's sinking, the size of the elevation angle and the current altitude, and the above operations are all to maintain the necessary lift at the angle of attack."

"Since the view ahead may be obstructed, the trainees will use their peripheral vision to observe the relative position of the ground and the aircraft on both sides to control the descent rate of the aircraft."

"The last step is landing, just before the grounding, you just need to increase the angle of attack to the attitude that the main wheel and the tail wheel can be grounded at the same time, and then the three points are grounded at the same time."

After having an explanation, the layman of the Yellow River can also roughly understand the doorway of landing.

The perfect corner of the fighter was on the runway, and there was an inexplicable beauty to the whole process. The students and instructors in the audience also began to applaud, and they were happy from the bottom of their hearts for the successful landing of the student.

But at this moment, the originally stable biplane fighter suddenly came to chew. It looked as if an invisible force was pressing down on the nose of the plane, and in a matter of moments, the propeller rubbed against the runway several times.

The sudden scene frightened most people, but not the principal and instructors. Before Huang He could react to what had happened, he had already rushed to the scene of the accident with people.

"Hygienist! Come with me! Students, don't come to join in the fun, don't come close! ”

As if seeing Huang He's doubts, an instructor who had returned from the border took the initiative to explain.

"The main landing gear of the Gladiator is in front of the center of gravity and very close to the center of gravity of the whole. I guess the pony must have braked heavily during the taxiing phase, causing the plane to take the big roof directly due to inertia. ”

"Director Huang, you should be able to ride a bicycle. The accident just now is equivalent to riding a bicycle, and it is easy to turn the whole car over with the front brake. ”

"So when you slide, you have to brake lightly or with a tap until the speed is low enough to brake again. Hey, what a failure. ”

Fortunately, the Gladiator can be regarded as the final work of the biplane, and its protection is quite good.

After careful examination by the hygienist, the student surnamed Ma only fainted, and there were no physical injuries.

However, the situation of the plane is not so good, the propeller has cut cracks in the runway, and there is already visible damage.

The engine hit the ground and the entire plane had to be repaired before it could be used again.

Ten minutes later, Principal Chang returned to his place, his face looking a little ugly. After all, he had just sworn to introduce his students, but he overturned in the next second.

Huang He took the initiative to break the silence, he patted Principal Chang on the shoulder and said:

"People are fine, don't worry about planes and fuel. Wait another four months at most, and then there will be a new and better batch of fighters and attack aircraft. ”

"Don't rush the training, you have to take it step by step. The comrades in the aviation school are all treasures in the border area, and their safety must be ensured as much as possible. ”

Learning to fly an airplane is hard and dangerous. Unlike trucks or armored units, even if you make a mistake, there is a high probability that your life will not be in danger, and it is usually a fracture or other injury.

But once the plane has an accident, it is almost lifeless, and before mastering the parachuting technique, a fall means death. What's more, there are many times when the fighters don't even have the opportunity to skydive.

The students of these aviation schools must have made great efforts to complete the study of theoretical knowledge in just over a month.

Huang He didn't have to think about it to know that these young comrades around 20 years old must have studied seriously during the day and continued to gnaw on the knowledge points they didn't understand at night.

Principal Chang nodded, he also came all the way from the rookie stage, and he had experienced many things personally. After thinking for a moment, he came to the middle of the students.

"Students, I hope you can learn the lesson just now, and you must avoid similar things in the future."

"I would like to add that whether it is the three-point grounding that I learned a few days ago, or the two-point grounding that I will use in the future, there is a problem that we have to pay attention to."

"When grounding, the longitudinal axis of the fuselage must coincide with the direction of speed, or the centerline of the runway. If the aircraft has a sideslip angle when the main wheel is grounded, it is very easy to cause divergence of heading control. ”

When all the students left the scene and continued to learn techniques from the instructor, Principal Chang asked the question in his heart.

"Director Huang, do you have any work arrangements for coming to our aviation school this time? Is there a combat mission? ”

"Although the level of the cadets is not enough, we instructors can definitely participate in the battle, and the strength of the fighter fighter is not much worse than the devil's ninety-seven type."

"And we have a numerical advantage, and in my experience in the Battle of Nomenkan, it is rare for the enemy's army aviation to dispatch more than three flying teams at once."

These questions made Huang He stunned, he didn't expect Principal Chang, who looked very stable on the outside, to be so eager to fight in his heart. But if you think about it carefully, you can understand that anyone who has been refrigerated for more than three years will be very eager for the battlefield.

"This is not a combat mission, you need to transport a batch of weapons to the south. Leave tomorrow, and you'll pick the personnel. ”

"I remember that you went to the north to study in 26, and now there is still one of our troops in the south. The friction between the comrades over there and the preserved fruit is a bit big, and many bad things may happen. ”

"The border area has prepared a batch of new infantry light weapons, and I have to trouble you to transport them. The transit airport has been arranged, and when the time comes, you can fly according to the plan, and the Spitfire will take on the escort mission. ”

Although it is not a combat mission, it is a good thing to be able to make a sortie. Principal Chang excitedly saluted the Yellow River, and he shouted loudly:

"Guaranteed to complete the mission!"

On the last day of 1940, 25 C47 air trains waddled from the border airfield. Loaded with supplies and weapons, they flew south under the escort of six Spitfires.

(End of chapter)