Chapter 235 Extreme Test
Chapter 235 Extreme Test
When Kang Chi designed the Silver Crane in Dongyang, he only conducted several computer simulation tests because there was no wind tunnel test condition.
The most challenging thing in the fixed-wing state is whether the fuselage design conforms to aerodynamics. Therefore, Kang Chi is most worried about this inconspicuous test.
However, there is a wind tunnel laboratory at the Aoying Base. Therefore, before the actual test, Kang Chi first had the Silver Crane taken 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 before taking the Silver Crane back to the test site.
Since the wind tunnel test has passed, there is basically no suspense about this test.
With the dual motors fully open at 3,000 horsepower, the Silver Crane’s gliding takeoff distance was only 67 meters, and when gliding and landing, the electric motor reversed the brakes and achieved an amazing result of 23 meters of braking.
This made Cai Yaobin like the Silver Crane more and more. If it hadn’t passed the most critical aerial deformation test, he would have immediately placed an order with Kang Chi.
Of course, even if there was an accident in the next aerial deformation, he would definitely support Kang Chi to continue this research without reservation. This is not only out of trust in Kang Chi himself, but also out of love for this aircraft.
”Prepare for the aerial attitude change test.”
”Received!”
As the test progressed, it was finally time for the most core function test of this aircraft.
In order to observe the process and stability of the Silver Crane’s deformation in the air, the test team also arranged a K8 trainer to accompany the flight and shoot, and the transmission was displayed on the large screen in the command room.
”Report to the tower, the current speed is 300KM, the flight altitude is 2234 meters, and the flight attitude switching procedure has begun.”
As Li Xiangnan began to perform the operation, the two motors on the wings of the Silver Crane, which were perpendicular to the ground, began to slowly rotate ninety degrees.
When the propeller of a tilt-rotor aircraft changes direction, the change in wind force will make the airflow environment faced by the entire fuselage extremely unstable and complex. If the fuselage is not stable enough, it is easy to shake violently, or even flip over or lose control.
However, the performance of the Yinhe fuselage stabilization system is as reliable as usual.
Through real-time detection and adjustment of the fuselage status in milliseconds, the fuselage stability of the Yinhe has been maintained very perfectly, without any large swing.
After about twenty seconds, the Yinhe finally completed the transition from helicopter status to fixed-wing status. The reduction of wind resistance and the change of power direction also allowed the Yinhe to soar in speed under the same power output.
“Report to the tower, we have successfully switched to fixed-wing flight mode, currently at 460 km/h, and at an altitude of 2,323 meters.”
”Success!”
”A mode switch directly allowed the helicopter to soar to 460 km/h… The tilt-rotor is really amazing!”
”Mr. Kang is awesome!”
”I didn’t expect that we would have Transformers in the air!”
”…”
After hearing Li Xiangnan’s report, the entire command room was immediately drowned in cheers.
”Mr. Kang, congratulations!”
Cai Yaobin couldn’t help but look at Kang Chi with some excitement: “Although the stability and interference resistance of the electric aircraft on the front line have yet to be tested, this aircraft definitely has great potential in terms of border patrol, rapid transportation support of troops, and logistics supply!”
Kang Chi: “…”
I can only say that, It is worthy of being the leader of the equipment procurement department. He arranged the application scenarios so quickly, and even began to consider the possible problems on the front line.
He probably almost forgot that Kang Chi originally built this Silver Crane for a convenient private transportation tool…
”Well… I think we should not be too happy too soon, there are still many tests to come.”
”That’s true.”
When Cai Yaobin turned back to continue looking at the big screen, Kang Chi’s brows began to frown slightly.
After switching to fixed-wing, the speed increased to 460km/h. This data seemed a little inconsistent with his expectations…—— If it can be transformed from a helicopter to a fixed-wing, it must naturally be transformed from a fixed-wing to a helicopter.
In this test, the Silver Crane finally had its first problem since the test.
However, the problem was not very big, mainly because of the shapeThe change in state caused the aircraft’s power and speed to drop sharply, so a small stall and fall occurred.
After the test, Kang Chi 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 the flight mode was switched, the range of the flight control system to adjust the motor power each time was widened.
After the modification, everyone conducted another test, and the problem of stalling and falling was indeed solved.
Next, it is the limit test.
In this test session, the aircraft will switch from semi-automatic driving to full manual mode, and most of the safety assistance functions will be removed at the same time, so that the test pilot can test the limit performance of the Silver Crane.
”It’s finally time for us to perform!”
After entering this session, Li Xiangnan and Shen Ye finally began to feel a little excited.
Although the previous test was somewhat dangerous, the Silver Crane was highly automated and the operating skills were very low, so even if Kang Chi was replaced, it was completely possible to get started.
For the two who often fly supersonic fighters, this was indeed a bit boring.
But the next test started to be a bit interesting.
”Silver Crane, conduct the extreme pull-up test!”
”Received, start the extreme pull-up test… 10 degrees, 20 degrees… 88 degrees! Current speed 166KM!”
”Speed 434KM, ground radar over-received!”
”Fuck, this is too fast!”
When everyone in the command room saw that the Silver Crane in the fixed-wing state turned into another form of ‘helicopter’ after the pull-up, climbing up at an angle almost vertical to the ground, and the speed was as high as 166KM, they immediately exclaimed again.
Next, under the control of two top pilots, the Silver Crane really acted like a light crane, performing various high-difficulty acrobatic performances that fixed-wing aircraft often perform, such as dives, rolls, and barrel rolls, and the speed was basically above 400KM. Seeing this, Kang Chi couldn’t help but sweat for the two test pilots.
”Start the extreme acceleration and maximum speed test. The current speed is 200km/h, the altitude is 4556 meters, and the ignition switch has been pulled to the maximum!”
As Li Xiangnan pulled the ignition switch to the maximum, a strong sense of pushing back appeared.
”The acceleration is so fast!”
Li Xiangnan never expected that when testing a tilt-rotor aircraft, he would feel such an exciting feeling.
“280km/h, 350km…598km! Maximum speed 598km/h!”
“598km/h!!?”
When hearing this number, not only were the people in the command room stunned, but even Kang Chi showed a surprised expression.
In fact, when changing the form before, Kang Chi vaguely noticed that something was wrong, because the speed of the helicopter form was 300KM/h, but after switching to the fixed wing, the speed directly rose to 460KM/h.
In the helicopter state, the maximum speed of the Silver Crane is 400KM. According to this ratio, the Silver Crane should have 613km/h in the fixed wing form.
But Kang Chi clearly remembered that the maximum speed written on the system panel was only 500KM/h.
Kang Chi thought about it and felt that the data given by the system panel was probably the maximum speed when fully loaded with 9 tons.
After all, if you want to measure this kind of limit speed, it is likely to be affected by the number and weight of pilots, and there is no way to specifically measure the limit speed of no 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…
However, it is definitely a surprise to be able to reach a speed of nearly 600km/h. You know, the speed of the Osprey is only 510km/h.
However, the two are not actually of the same weight. The empty weight of the Osprey is 15 tons, while the Silver Crane is only 5 tons.
If the Silver Crane is enlarged to the level of the Osprey, and a few more tons of batteries and motors are installed, it may not reach a speed of 600km/h.
Of course, there is also a possibility that because of the addition of motors and propellers, the speed can be even faster…
(End of this chapter)