Watching the four crew members board the cockpit of the M40 large transport plane one by one, everyone's hearts began to get excited! This is a large twin-engine turboprop transport aircraft, not comparable to that type of aircraft, its wingspan reaches 29 meters, and it still looks very large from a distance! As the door of the boarding gate slowly closed, several ground crew members also ran under the huge fuselage of the M40 transport aircraft and removed the tire fixing slots! The crew members started the power supply, and then carefully checked all the instruments and equipment in the cockpit, and after confirming that there were no problems, they began to start the engines one by one according to the operating procedures!

With a sudden sound, the first engine started successfully! Then the second engine started up successfully! At this time, it was already clear that the two pairs of six-bladed propellers were spinning rapidly, agitating the air to the fuselage at a rapid pace, and under this force, the M40 large transport plane soon began to glide!

Everyone present stared closely at the M40 transport plane on the runway, and they all wanted to witness the miracle, how spectacular and exciting it should be when such a huge plane took off. As the M40 transport plane continued to accelerate and slide, everyone's heart hung in their throats! Especially Xiao Weiguo, Anna and Bai Wanrou, this is a type of transport aircraft related to the future of Dragon Soul Ordnance, it is a real large transport aircraft, which has a generational progress over the M30 transport aircraft, as long as it can successfully complete the first flight, it will be one step closer to finalized mass production. Needless to say, Hilam and other designers designed and prototyped this large transport plane, just like their son. Anderson is also nervous, and the M40 large transport aircraft also represents the defense strength of the Kingdom of Sweden and the image of the Swedish aviation industry.

I saw that the M40 large transport plane on the runway was getting faster and faster, and soon it slid a distance of several hundred meters. When it glides to about 1000 meters, it finally raises its front wheel slightly, and at this time the people watching are even more nervous. This is also the most dangerous time, if the take-off attitude of the plane is not well controlled, it may tilt. Or it then rushed off the runway, or even exploded at high speed, and now it has more than 2 tons of fuel in its tank!

In fact, the most nervous and busy people are still 4 crew members! Their backs are wet with sweat, this is risking their lives, the test pilot is a kind of person who hangs his head on the waistband of his trousers, this is what Xiao Weiguo once said, they all remember. Although Dragon Soul Aircraft Manufacturing Co., Ltd. has not had a serious flight test accident, it is in other aircraft factories abroad. There are many tragedies of crashing the timing of test flights!

The M40 large transport aircraft is a big guy, and it is not easy to operate such an aircraft! Especially when it is about to take off, its attitude must be maintained, otherwise it may fall to the ground after taking off from the ground! Aircraft are the most dangerous during take-off and landing, and 80% of accidents occur at this stage, especially for new aircraft test flights. Everyone is very careful, carefully and carefully operating every rudder face. To control the attitude of the aircraft!

Fortunately, the M40 transport aircraft is indeed well designed, of course, this kind of aircraft that borrows from the mature models of later generations can not be bad. There were no accidents during the whole taxi, and of course this was the result of the careful operation of the crew members, and after taxiing for about 1,500 meters, the M40 large transport aircraft finally took off! The M40 large transport aircraft, which was free from the shackles of the ground, flew into the distance with an unparalleled momentum! Its huge figure is only now fully revealed to the people!

Anderson was also so excited that everyone who watched stood up one after another. Staring at the figure of the M40 transport plane that is gradually moving away! Anderson muttered, "It's spectacular, it's so exciting!" The M40 transport aircraft has finally taken off! This is the world's first large aircraft with a turboprop engine! ”

On the M40 large transport aircraft! The four crew members worked closely together to control the M40 transport plane to fly into the blue sky, and then they were a little relieved, but fortunately this time they did not fail in their mission. Finally got this big guy flying! Although it is much longer than the designed running distance, after all, it is the first test flight, and being able to fly is considered a success. Although this distance of more than 1,000 is not long, it represents a big step forward in the world's aviation industry technology! It also marks an important step taken by the Dragon Soul Ordnance Complex.

Now the plane is slowly accelerating to climb under their control, and the pressurization system in the cockpit has also begun to work, providing pressurized and heated air to the cockpit! At this time, the crew members found that their backs were soaked with cold sweat, which shows how nervous they were just now! However, now is not the time to relax, this test flight still has to fly some basic subjects, and the flight will take about an hour to return!

The M40 transport aircraft quickly climbed to an altitude of 9,000 meters, which is difficult for ordinary propeller aircraft to reach. An aircraft with a piston engine and a propeller, without a turbocharger, would have lost engine power and propeller efficiency at high altitudes and would have dropped dramatically, and even the best propeller fighters in World War II could barely reach 10,000 meters. Wind and thunder turboprop engine is not those piston engines can be compared, it has very good performance at high altitude and low altitude, the aerodynamic efficiency of the six-blade torque conversion propeller is also much higher than that of ordinary propellers, I have to say that the M40 transport aircraft has a very high lift-to-drag ratio, the power is also very strong, the climb rate is much faster than the ordinary piston propeller aircraft, so it only took about 20 minutes to fly to an altitude of 9000 meters, which is the first test flight, it reached a climb speed of 7.5 meters per second. Even the later famous American B17 bomber had no more than such a rate of climb.

Soon the flight speed of the M40 transport aircraft also reached 400 kilometers per hour, which is still the case that the throttle is only pushed to two-thirds, if the throttle is fully opened, it is easy to reach the maximum design speed of 500 kilometers per hour! However, this is not allowed in the first test flight, the maximum level flight speed and other extreme performance of the test flight, is very dangerous, in the first test flight it is impossible to do such a test flight subject, the first flight is mainly to test the basic flight performance of the aircraft, whether there is any problem in the handling. The navigator and communicator immediately reported the current flight parameters of the aircraft to the ground tower: "The M40 transport aircraft No. 01 is flying normally!" Speed 410, altitude 9000, heading 345......" (To be continued.) )