The Military-industrial Scientific Research System of the Academic Master Chapter 223

Chapter 223 The dignified Airbus actually wants to buy Huaxia Aircraft?

From where everyone got off the car, they could already see a seemingly unremarkable mid-wing jet aircraft parked in the huge workshop.

 Everyone here is a professional. Even three Europeans know the H-6 prototype 16.

“AIT…Icing Simulator?”

This time, it was Colombo who reacted first, and then showed a disappointed expression:

 “This is your secret weapon?”

As a former AgustaWestland employee, Colombo has experience that many people working on fixed-wing aircraft do not have.

 This includes using various artificial icing simulation methods to verify the helicopter rotor anti-icing system, so icing simulated aircraft is not new to him.

Wallet, who was separated by a mountain, showed a little curiosity.

 In her opinion, this aircraft with pods under the wings is more like an aerial tanker.

Only Lorenzo, who was well-informed, did not show any emotion. He just put his hands behind his back and stared at the position at the tail of the refueling pod where the refueling drogue should have been.

A bulkhead-style device is being installed there at this time.

Chang Haonan was not dissatisfied with Lorenzo's tone and expression.

He knows the principle of suppressing first and then rising. The more the other party thinks this plane is ordinary now, the easier it will be to be shocked later.

“Mr. Lorenzo, this is not an ordinary AIT aircraft. Please follow me, three of you.”

The group of people walked slowly into the final assembly workshop. The modification of the H-6 was almost completed, and only some necessary modifications were left to the positions of the original tail gun shooter cabin and the communications module.

“Rossi, you should have seen that C130-modified icing simulator in the United States, right?”

Lorenzo, who was following Chang Haonan, asked Colombo next to him in a low voice in unskilled Italian.

 The latter replied almost without thinking:

“Of course, the A109's rotor de-icing system was tested with the assistance of that aircraft.”

“So what was the airspeed you were testing at?”

 Lorenzo has only heard about C130AIT, so he doesn't know many details.

 “Airspeed?”

Colombo was suddenly asked:

“Let me think about it, we don't pay much attention to this data when testing helicopters...”

 Because the helicopter does not rely on its own speed to provide lift, more attention will be paid to the rotor speed during icing test flights.

 After a few seconds, he replied in an uncertain tone:

“About 110 knots, which is about 205km/h…”

After hearing this answer, Lorenzo nodded thoughtfully.

“This is the injection device we specially developed for simulated icing tests under SLD conditions.”

H-6 is actually not a very big aircraft. Coupled with the design of the mid-wing, Chang Haonan can reach out and touch the position of the refueling pod:

"The side length after full expansion is 1.5 meters. It is composed of a total of 68 two-fluid micro-mist nozzles, which can spray an average particle size between 25 microns and 1 mm at a maximum speed of 750km/h and an altitude of 5,000 meters. Uniform water mist with a deviation of no more than 20%.”

 It was similar to what Chang Haonan had expected. As professionals, the three Europeans quickly understood it after hearing the introduction.

Especially Colombo, who was a little disappointed and disdainful just now, the corners of his mouth twitched obviously a few times.

 For a time, the only sound left in the entire workshop was the sound of the motor when the power tool was started.

"Etc., etc…"

Colombo finally realized at this time why Lorenzo had asked himself those slightly abrupt questions just now.

If he had read Mr. Lu Xun's works, he would definitely have the following emotion:

“I'm so stupid, really, I only knew that there are icing simulation aircraft in the United States, but I didn't know that the one in front of me is even more awesome...”

This H-6AIT can be said to be completely different from the C130AIT he had seen in North America before.

The latter can only be used at low altitudes within a very narrow speed range around 200km/h (the stall speed of the C130 is about 185km), so it can basically only be adapted to the normal flight conditions of helicopters.

And the Chinese people's test object this time was a serious fixed-wing aircraft.

 The test conditions they previously set were an airspeed of 114m/s, exceeding 400km/h.

 According to Chang Haonan, this aircraft can even work normally at a speed of 750km/h.

If this data is not particularly exaggerated, let alone propeller aircraft such as the M60, even the icing test flight of a jet aircraft can be completed with this aircraft. After all, based on past experience, wing icing mostly occurs at medium and low altitudes and at medium and low speeds. There is basically no need to consider ice damage in flight conditions exceeding 750km/h.

 This is great.

“Mr. Chang, at a temperature of -30°C, won't the water in the pipes freeze?”

 As the representative of JAA, Valette next to him didn't know much about these specific technical details, so he just asked based on instinct.

 But this problem hit Chang Haonan's heart.

“Ms. Valette asked very well, this involves our exclusive technology.”

As he spoke, he patted the shell of the refueling pod and made a crisp sound:

"I just said that this injection device contains 68 two-fluid micro-mist nozzles, which are nozzles that can inject gas and liquid at the same time. Under working conditions, water will flow through the inside of the double-layer concentric hose, and the outside will be drawn from the engine. Extracted high-temperature exhaust gas package.”

“On the one hand, this can prevent water from freezing in the air and clogging the pipes. On the other hand, it can also use the principle of ejection to control the diameter of the ejected droplets by adjusting the air supply.”

 Lorenzo and Colombo, who were more knowledgeable, looked at each other.

 This is another piece of equipment whose principle is simple to say, but requires a huge amount of test data to be optimized before it can be put into engineering applications.

 Just like the previous icing simulation software.

 It is very difficult to copy it quickly once you get the physical object.

“It sounds like it can indeed meet the experimental requirements, but I don't know if this nozzle can create a large enough volume of supercooled water and air mass. After all, we have to cover the entire aircraft?”

Lorenzo used a more tactful way to get out what he wanted to know.

Chang Haonan can naturally hear the other party's purpose, but this is what he planned to tell them:

"It's enough. According to calculations, this spray device can form a water mist area with a cross-sectional size of 50 meters x 50 meters at the rear. If three sets of equipment can be installed on the left and right wings and the tail of an aircraft at the same time, then the cross-section can be Expanded to 120 meters x 40 meters, even an Airbus... er, Boeing 747 is enough. "

 He ​​almost blurted out Airbus A380, and then remembered that he had not decided on the name yet.

Chang Haonan's seemingly casual introduction is actually very targeted.

If we say that China's commitment to designing an anti-icing system for ATR42/72 is giving it a fish, then jointly conducting research on icing and anti-icing with Europe is giving it a fish.

Then this plane directly contracted a fish pond.

This allows Airbus and JAA to bid farewell to the Great Lakes in North America and conduct ice test flights of aircraft in Europe.

This matter will not be very attractive to the EU that will not be able to support the wall 20 years later, but it was different in the 1990s.

 The EU these days is a bit like a person who has just come of age. It is eager to prove that it can completely separate from the United States in various fields and at all levels, so it urgently needs this kind of contracting fish ponds.

 They will definitely be interested.

 After all, the world has been suffering for a long time.

 That's right, Chang Haonan is planning to sell his system!

 Mainly because he knew that in about five or six years, Boeing would use a KC135 to modify a similar product.

 Then the French, who also owned the KC135F, quickly caught up with the progress.

Mainly AIT aircraft can be used for decades after being built. The water spray system is sufficient anyway, and there will be no technological iterations.

There is no need to hold on to Boeing in the end.

Sure enough, after hearing Chang Haonan's answer, the muscles on their faces twitched slightly, apparently trying to suppress their overly excited expressions.

Probably the same time Jim Harker died halfway through the memoirs of the former prime minister.

 In short, after finishing today's visit, Lorenzo found Schneider who had a great time that evening.

“Their aircraft will allow us to completely solve the FAA's monopoly problem on natural icing test flights!”

Perhaps because he was afraid that he was not convincing enough, he added another sentence:

“The water mist area of ​​120 meters × 40 meters can even be used to complete the test of our planned A3XX aircraft!”

 A3XX, the predecessor of the future A380.

“You mean we can have long-term cooperation with China in natural icing test flights?”

Schneider, who was a little tired from a day of visiting, turned out to be interested:

“But what is the difference between this and cooperation with the FAA? The initiative is not in our hands anyway?”

 Lorenzo shook his head:

“No, I mean, we can buy a plane like that and take it home, and we can do the test flight ourselves!”

 (End of this chapter)

Chapter end