Several ground crew members and soldiers opened the hangar in the middle, and the Martin 139wc heavy bomber appeared in front of everyone.

This is a dark green giant Raptor with a retractable landing gear, an open three-seater cockpit, an open arm-type all-metal fuselage, and a length of 13.75 meters.

The three-fan blades, widening, thickening, and increasing tension, allow the aircraft to fly at an altitude of 6,000 meters and have pilot oxygen bags, which are high-altitude flight equipment that most fighters do not have at this time.

Double shot.

Each engine has a power of 775 horsepower.

Single wing.

The wingspan reaches an astonishing 21.49 meters, and the wings are painted with eye-catching blue sky and sun signs, shining brightly in the sun.

Under the wing are two 77mm machine guns.

The nose extends forward, the nose is oval and transparent, and the closed cockpit is equipped with a machine gunner, a rotating turret, and a 6×0.50-inch Browning water-cooled machine cannon, with enough ammunition to be replaced.

The middle section wing and fuselage structure are integrated into one, mainly made of metal structure, and a fully enclosed cockpit is adopted.

In order to increase the field of view, the pilot's cockpit was slightly protruded and covered with a full glass cover. Behind the flight seat was the pilot's part-time transmitter, and behind it was the bomber's pitcher.

The cockpit with the tail facing the machine is swept backward arched to reduce wind resistance. A specific rear-mounted machine gunner, a 6×0.50-inch Browning water-cooled machine cannon, 500 rounds, and ammunition is enough to be replaced.

The maximum speed is 353 kilometers per hour, and the speed is comparable to that of the main fighter jets of various countries at that time. It is the best among the first generation of similar bombers in the world.

The take-off weight is 7630 kilograms, the maximum flight altitude is 7600 meters, the one-time refueling range is 1160 kilometers, and it can carry 1300 kilograms of ammunition. The load capacity is excellent among similar bombers.

It is because this Martin 139wc heavy bomber has a single-wing twin-engine that can fly at an altitude of 6,000 meters, so Chinese pilots dare not fly.

All pilots of the Chinese Air Force had flying two-wing and single-engine before. Everyone was a little scared of this type of huge, single-wing and double-engine Raptor.

It’s like a car driver who has never driven a trailer before. When he sees a long, wide and tall trailer, he will feel unsure if he gets on the bus and starts driving, even standing by the side of the bus and watching.

Customers bully the store!

The big plane will make the pilot feel furious.

The plane is in the sky, but it is not as simple as the car is not able to brake and hold it in one step.

Several ground crew members brought the escalator and opened three cabins. Two machine gunners specially brought from Jianqiao Aviation School sat in front and rear cabins. Zhou Zhihan, Gao Zhihang and Zhang Mufei were seated in the middle warehouse.

Several ground crew members closed the cabin and removed the escalator.

Zhou Zhihan was familiar with the power switch, check various instruments, and everything was ready.

"boom!"

The dual-engine engine rotates at the same time, and the engine's sound is low and thick, giving people a very powerful shocking effect.

Along the airport runway, Zhou Zhihan slowly pushed the throttle forward, and explained to Gao Zhihang and Zhang Mufei what to pay attention to when driving a single-wing heavy bomber, especially before takeoff, the use of the throttle is very particular. If the throttle is large, the fuselage of the fighter will sway unstable and sway, and the fuselage will be small, and the fuselage will feel stagnant.

How to give the throttle just right requires the pilot to be able to judge the engine's working state from the sound of the engine, and then determine the forward pushing speed of the throttle valve.

Only rookie pilots use a kilometer watch to feed oil and pull rods. The old bird can tell how to feed oil based on its sound and when to lift the head of the lever backward is the best time.

Just driving forward and before taking off, Gao Zhihang and Zhang Mufei, who were sitting behind Zhou Zhihan, felt the gap between themselves and this top student.

The two looked at each other.

From the moment the plane taxied forward, the stability it showed was so stable that it was several levels away from itself. When sitting on the plane, it was completely unsatisfactory that the plane had caused by the instability of fuel supply.

No problem is found!

When Zhou Zhihanqian pushed the throttle valve and tie rod, the bomber's head was lifted steadily, like a dark green raptor pounced into the air.

Gao Zhihang and Zhang Mufei couldn't help but admire each other. The high-level student pushed the throttle forward and took off in the past few seconds. Even if he flew for another 400 hours, he could not achieve this smoothness.

Gao and Zhang did not know that Zhou Zhihan spent one and a half years at Randolph Air Force School, almost every day, and entered the secret to [Air Overlord] to practice the flying techniques of various aircraft. He reached fifty hours in one hour. In the past year and a half, his flight time at [Air Overlord] was equivalent to 8,000 hours for others. In addition, Principal Pat Plov gave him three or four hours of flight time every day, and his flight time had exceeded 10,000 hours.

Even if you fly for 24 hours a day, you have to fly for more than 400 days in a row. For any driver, this is an inaccessible natural barrier.

Zhou Zhihan's take-off technology, not to mention Gao Zhihang and Zhang Mufei who were deeply feeling in the cabin, even soldiers or ground crew members who did not know how to fly on the ground could feel that this top student was more relaxed and comfortable than an eagle taking off from the ground.

This kind of relaxation and freedom made all the waiters amazed. Everyone thought that this top student was not flying a plane, he was just a raptor himself.

The flight resistance of a biplane is large and is designed to increase lift when the engine power is small. As the engine's horsepower continues to increase, there is no need to use biplane to increase lifting force. The biplane is changed to a single plane, so the monoplane flies faster and has better performance.

Zhou Zhihan walked forward with ant pushing the throttle valve, gently pulled the rod with his right hand, cooperated with each other, and the bomber climbed upward at an angle of 25 degrees.

This saves fuel.

Zhou Zhihan used to fly an aircraft in the secret book of [Air Overlord], and he was unscrupulous in the sky to climb the angle of attack, and he did various fuel-consuming maneuvering actions in the air. Every flight required air combat coins. Only when the angle of attack climbed into the air was cool and powerful, and he could learn more skills.

It’s like driving a turbo, stepping down the accelerator and enjoying the feeling of pushing back that momentarily brings.

At this time, China had to import all aviation fuel from foreign countries. The country was poor and even bought airplanes by private donations. After buying horses, they had to buy feed for horses. They were usually very careful and wanted to let the horses run away and not eat grass.

Therefore, in the shortage of aviation fuel, it is difficult to ensure the pilot's flight time.

Good pilots are all piled up with money, and do not have enough flight time, and the theoretical knowledge learned close to the ground cannot become excellent pilots.

At this time, China was poor and backward, and fighter jets were bought from abroad and treated as treasures. It was difficult for rookie pilots to fly on the plane.

Of course, the main factors that restrict the emergence of excellent pilots are aviation fuel and engines.

The life of the engine is limited. In order to reduce the wear of the engine, the old birds are usually only flying the planes to patrol when they are ready for combat.

Rookie?

It is quite good for a rookie pilot to fly four or five hours a month at this time.

Before traveling through time, I have read a lot of information about World War II air combat, most of which exaggerated the flight capabilities of Chinese Air Force pilots at that time.

After traveling over and seeing everything in front of you, Zhou Zhihan could tell without having to test the actual combat with the Japanese Air Force. The ability of the Chinese Air Force pilot is actually very average.

In this era when material scarcity cannot build aircraft and most aviation fuel depends on imports, except for dozens of experienced old birds who have good flying skills, the flight time of most rookie pilots is not guaranteed, so it is difficult to create a large number of excellent pilots.

The Martin 139wc heavy bomber climbed steadily into the air, which made all the soldiers present excited.

The heavy bomber finally flew up.

This is the most important weapon of the country today.

There were several pilots on the ground, looking up at the heavy bomber that was pounced on the sky like a raptor, and tears came out of their eyes.

It's really not easy!
Chapter completed!