When Kangchi designed the silver crane in Dongyang, because there was no wind tunnel measurement conditions, only a few computer simulation tests were carried out.

The most important test in the fixed-wing state is whether the design of the fuselage is aerodynamic, so what Kangchi is most worried about is this inconspicuous test.

However, there is a wind tunnel laboratory at the Eagle base, so before the actual test, Kang Chi first asked Yinhe to be pulled to the wind tunnel laboratory and conducted a wind tunnel test to confirm that the deviation between the test results and the simulation was within an acceptable range, and then pulled Yinhe back to the test site.

Now that the wind tunnel test has passed, there is basically no suspense about this test.

With 3,000 horses fully open with two motors, the Yinhe's gliding take-off distance is only 67 meters, and when gliding and landing, the electric motor reverses the braking and achieves an amazing stop of 23 meters.

This makes Cai Yaobin more and more pleasing to the eyes of this silver crane, if it is not the most critical air deformation test has not passed, he is estimated to be about to smash the order to Kangchi immediately.

Of course, even if there is an accident in the next mid-air deformation, he will definitely spare no effort to support Kangchi to continue his research in this area, not only out of trust in Kangchi himself, but also out of love for this aircraft.

"Preparing for an air attitude shift test."

"Roger!"

As the test progressed, it was finally time to test the core functions of this aircraft.

In order to observe the process and stability of the silver crane in the air, the test team also arranged a K8 trainer aircraft to accompany the flight and shoot it, and transmitted it on the big screen in the command room.

"The report tower, the current speed is 300KM per hour, the flight altitude is 2234 meters, and the flight attitude switching procedure is started."

As Lee began to perform the operation to the south, the two motors on the wings of the silver crane, perpendicular to the ground, began to slowly rotate ninety degrees.

When the propeller changes direction, the change of wind force will make the airflow environment faced by the entire fuselage extremely unstable and complex, if the stability of the fuselage is not enough, it is easy to shake violently, or even overturn and lose control.

However, the performance of Yinhe's fuselage stabilization system is as reliable as ever.

Through real-time detection and adjustment of the fuselage status in milliseconds, the stability of the Yinhe's fuselage has been maintained perfectly, and there is no slight swing at all.

After about 20 seconds, Yinhe finally completed the transition from helicopter state to fixed-wing state, the reduction of wind resistance and the change of power direction also made Yinhe's speed soar with the same power output.

"REPORTING TO THE TOWER, WE HAVE SUCCESSFULLY SWITCHED TO FIXED-WING FLIGHT MODE, WITH A CURRENT SPEED OF 460KM PER HOUR AND A FLIGHT ALTITUDE OF 2,323 METERS."

"It worked!"

"A MODE SWITCH DIRECTLY SENT THE HELICOPTER TO A SPEED OF 460KM...... The tilt side rotor is really powerful! ”

"Mr. Kang is mighty!"

"I didn't expect us to have aerial transformers too!"

“……”

Hearing Li Xiangnan's report, the entire command room was immediately overwhelmed with cheers.

"Mr. Kang, congratulations!"

Cai Yaobin couldn't help but look at Kangchi with some excitement: "Although the stability and interference ability of the electric aircraft on the front line have yet to be tested, this aircraft definitely has very huge potential in border patrols, rapid transportation and support of troops, logistics and supply, etc." ”

Kangchi: "......"

It can only be said that

As the leader of the equipment procurement department, the application scenarios were arranged so quickly, and even the possible problems on the front line began to be considered.

It is estimated that he almost forgot that Kangchi originally built this silver crane to have a convenient private transportation......

"Hmm...... I think we'd better not get too excited just yet, there are a lot of tests ahead. ”

"That's right."

When Cai Yaobin turned his head and continued to look at the big screen, Kang Chi's brows began to wrinkle slightly.

After switching to a fixed-wing system, the speed rose to 460 km/h, which seemed to be a bit different from what he expected......

——

If you can change from a helicopter to a fixed-wing, you have to change from a fixed-wing to a helicopter.

And in this test, Yinhe finally had its first problem since the test.

However, the problem is not very big, mainly because the change in shape caused the power and speed of the aircraft to drop sharply, so there was a small stall and fall.

After the end of this test, Kangchi directly spent half an hour on the spot to modify and correct the flight control program.

FIRST, THE SPEED WHEN SWITCHING TO HELICOPTER MODE WAS REDUCED TO 380KM/H, AND THEN WHEN SWITCHING TO FLIGHT MODE, THE FLIGHT CONTROL SYSTEM WIDENED THE RANGE WHERE THE MOTOR POWER WAS ADJUSTED EACH TIME.

After the modification, everyone re-tested it, and the problem of stalling and falling was solved.

Next, it's time for the limit test.

In this test session, the aircraft will be switched from semi-autonomous, to fully manual mode, while most of the safety assistance functions will be removed, so that test pilots can test the extreme performance of the Silver Crane.

"It's finally time for us to perform!"

After entering this link, Li Xiangnan and Shen Ye finally began to feel a little excited.

Although the previous test also had a certain degree of danger, because of the high degree of automation of Yinhe, the test of operation technology was very low, and even if Kangchi was replaced, it could be completely started.

This is really boring for the two who often fly supersonic fighters.

But then the test started to get a little interesting.

"Yinhe, do the extreme pull test!"

"Roger, start the extreme pull test...... 10 degrees, 20 degrees ...... 88 degrees! THE CURRENT SPEED IS 166KM! ”

"The speed is 434KM per hour, and the ground radar is overcharged!"

"Damn, this is too fast!"

When everyone in the command room saw that the silver crane in the fixed-wing state had been pulled up, it had turned into another form of 'helicopter', climbing up at an almost perpendicular angle to the ground, and the speed was as high as 166KM, and they immediately let out a burst of exclamation.

Next, under the control of the two top pilots, Yinhe is really like a light crane, making a variety of dives, rolls, barrel rolls and other fixed-wing aircraft often do difficult acrobatic performances, and the speed is basically above 400KM, Kangchi can't help but sweat for the two test pilots.

"The ultimate acceleration and maximum speed test began, the current speed is 200km/h, the height is 4556 meters, and the electric gate has been pulled to the maximum!"

As Li Xiangnan pulled the electric door to the maximum, there was a strong feeling of pushing back.

"The acceleration is so fast!"

Li Xiangnan didn't expect that when testing a tiltrotor, he would be able to have this kind of exciting feeling.

"280km/h, 350km...... 598km！ The top speed is 598km/h! ”

“598km/h！！？”

When they heard this number, not only the people in the command room were stunned, but even Kang Chi showed a surprised expression.

In fact, when changing the form test before, Kangchi vaguely noticed that something was wrong, because the speed of the helicopter form was 300KM/h at that time, but after switching to a fixed wing, the speed directly increased to 460KM/h.

In the helicopter state, the maximum speed of the crane is 400km, according to this ratio, the crane should be 613km/h in the fixed-wing form.

But Kangchi clearly remembers that the maximum speed written on the system panel is only 500KM/h.

Kangchi thought about it and felt that the data given by the system panel was likely to be the maximum speed when the load was 9 tons.

After all, if you want to measure this ultimate speed, it is likely to be affected by the number and weight of the pilot, and there is no way to specifically measure the ultimate speed of the empty load.

It seems that the parameters given by the system panel in the future can only be used as a reference, and cannot be trusted and relied on too much......

But in any case, it is definitely an unexpected surprise to be able to have a speed close to 600km/h, and you must know that the speed of the osprey is only 510km/h.

However, the two are not actually the same heavyweight, the osprey has an empty weight of 15 tons, while the silver crane is only 5 tons.

If the crane is enlarged to the level of an osprey, and a few more tons of batteries and motors are installed, it may not reach a speed of 600 km/h.

Of course, there is also a possibility that because of the more motors and propellers, the speed can be faster......

(End of chapter)