Siheyuan starts from a better life

Chapter 1145 Test
In itself, the two aircraft have undergone several ground flight tests, so the ground taxiing test of the aircraft this time will be much simpler. The most important thing is to test whether the engine of the aircraft is operating normally during the ground taxiing process. The most important thing is to test the various parameters of the air inlet. Of course, the posture of the aircraft during taxiing must also be tested to see if it is normal. When these conditions for the first flight are met, the first flight can be carried out on a certain day.

Of course, there is no choice of day now, because this is the largest and most comprehensive test flight site in the flower-growing country, and many aircraft are tested here, so the schedule is quite tight.

The reason why it can be arranged so quickly is very different from the laboratory under Jiang Yan. You know, Jiang Yan is now responsible for most of the experimental tasks of the research institute in the Magic City branch laboratory, and the fees are paid by Xinyi Aircraft Company.

The favor owed must always be repaid.

The reason why military and civilian aircraft are arranged to fly at the same time is because the two aircraft are ultimately of the same origin, and the purpose is to see the difference between the two.

Engineer Wu brought a group of people to the temporary assembly workshop. Looking at this aircraft that looked similar to the Boeing 737, Mr. Wu was very excited. No matter how many times he had seen it, he always felt that the aircraft he produced was very beautiful.

"Yes, yes, we are finally going to test fly this, this is our first mainline aircraft. It is a big step forward for our aviation industry."

Civil aircraft are divided into regional aircraft and mainline aircraft.

Regional aircraft usually refer to small passenger aircraft with less than 100 seats, which are mainly used for passenger transportation between large cities and small and medium-sized cities. Their design seat number is usually between 35 and 100, suitable for short-distance and small-city routes, and have high flight economy. Regional aircraft are mainly used for short-distance routes, are economical, and are suitable for connecting remote areas.

Trunk aircraft are relative to feeder aircraft, usually referring to aircraft with more than 100 seats, used for major cities, especially metropolises and major international routes. Trunk aircraft have large passenger capacity, high speed, and long range, and are suitable for long-distance flights between cities. Most trunk aircraft are medium- and long-range high-subsonic jet aircraft.

This new Y-150 aircraft is a 737-seat aircraft and is a proper mainline passenger aircraft. Mainly because Jiang Yan had previously emphasized the comfort type, the seat spacing even in the economy class is greater than that of the Boeing , which makes the passengers more comfortable.

If the spacing is the same as that of a Boeing 737, it should not be a problem to accommodate 200 people.

Chief Engineer Tang, who was in charge of the military transport aircraft, smiled and said, "Yes, we are about to conduct the first taxi test. To be honest, I am a little nervous!"

"You are worried about your precious plane!" Old Wu said with a smile.

"Everyone is nervous. Everyone is nervous."

"Today is a memorable day, Mr. Wu. Don't worry. Our engineers have checked the plane thoroughly. It looks very healthy. As long as the taxi test goes well, the first flight should be fine!" said one of the researchers.

Next, the leaders and experts once again conducted a careful review of the fighter before the taxiing test. After confirming that there were no problems, a tractor towed the aircraft to the test flight station.

If you look down from a high-altitude satellite, you can see two planes parked on the left and right of two adjacent runways in the test flight field. One plane is slightly taller but a little bloated, while the other is slender, like a beautiful white swan.

Many people were standing on the platforms on both sides of the runway, but their clothes were mainly blue and light gray. The blue work clothes belonged to the employees of Zhonghua Aviation Industry, and the light gray work clothes belonged to the employees of Xinyi Kangkong Group. Everyone was waiting there, and they looked a little nervous. "Mr. Wu, didn't you say that Mr. Jiang might come to participate in this test flight?" Chief Engineer Tang asked, looking at the somewhat nervous Mr. Wu.

"We couldn't leave him there, so we didn't come back." Old Wu said with regret.

Jiang Yan's absence this time is probably the biggest regret in Mr. Wu and others' hearts. Not to mention the investment of more than 10 billion yuan in this aircraft in recent years, the finished product is out, but the biggest investor did not show up. This is undoubtedly a pity.

After the two planes were parked, the staff quickly checked again and confirmed that there were no problems. The test pilots who performed the first taxiing test mission were two first-level test pilots who were specially hired.

These two test pilots are fighter jet test pilots. It may be a bit of a waste of their talents to transfer them here to participate in the test flight of civil aircraft. However, this also indirectly shows how much importance everyone attaches to aircraft.

The relevant leaders had explained the specific situation to them, and they also knew the importance of this flight. The two of them entered the cockpit with excitement. The cockpit of a civil aircraft is quite spacious, especially the seats, which are very comfortable.

One of the two people was named Lin Peng. He had participated in the taxiing experiment, so he was the main driver this time, and the one named Wang Kai was the co-pilot.

"Brother Peng, the cockpit of this civil aviation plane is big, unlike the cockpit of our fighter jets. The chairs are also quite comfortable to sit on." Wang Kai entered the cockpit and looked up and down before speaking.

This cockpit is basically based on the A320 cockpit. It is a two-person cockpit with side stick control. There are 6 color multi-function displays on the main instrument panel, and all performance data are displayed digitally. In addition to the flight management system and electronic flight instrument system, an aircraft center of gravity management system has also been added.

The instruments, displays, buttons, etc. on each panel are neatly arranged. The traditional push-pull joystick is used, and the center console and throttle lever are basically the same, using traditional mechanical hydraulic transmission. In particular, the door leading to the cabin is specially reinforced, which is something Jiang Yan specifically instructed, and there are two positions behind the co-pilot, which are specially configured for security personnel.

"Okay, let's check it quickly." Lin Peng said.

After saying that, Lin Peng made a gesture to the ground staff. After seeing this gesture, the ground staff below made a gesture of knowing and trotted all the way to Mr. Wu.

Mr. Wu and Chief Engineer Tang were chatting. The ground crew came over and told him that the inspection had already begun. Mr. Wu went directly to a pile of instruments next to the runway.

These instruments are used to check the taxiing posture. After taxiing begins, every posture of the aircraft is measured by the instruments installed on the runway. After Mr. Wu sat down, his palms began to sweat from nervousness.

After the civil aircraft started taxiing without any problems, the military version of the transport aircraft began testing. Now Chief Engineer Tang was nervous, as he looked much worse than Chief Engineer Wu before.

The main performance indicators of an aircraft takeoff are takeoff run distance, ground speed and takeoff distance, etc. However, this is just a single indicator, and there are still many rigorous tests to be carried out, especially for civil aircraft, the degree of testing is no less than that of military aircraft.

(End of this chapter)