Composite materials are multiphase materials produced by two or more materials such as metal materials, ceramic materials, or polymer materials through a composite process.

The formulated materials complement each other's strengths and weaknesses in terms of performance, resulting in a synergistic effect, so that the comprehensive performance of the composite materials is better than that of the original constituent materials, and at the same time meet a variety of different requirements.

The matrix materials are divided into two categories: metal and non-metal, and the commonly used metal matrix is aluminum, magnesium, copper, titanium and their alloys; Non-metallic matrices mainly include synthetic resins, graphite, rubber, ceramics, carbon, etc.

The main reinforcing materials are glass fiber, carbon fiber, boron fiber, asbestos fiber, silicon carbide fiber, metal wire and hard fine particles.

In the aviation field, the use rate of composite materials in aircraft determines the weight and efficiency of the aircraft, which is a crucial performance number.

Silicon carbide fiber is compounded with titanium, which not only improves the heat resistance of titanium, but also resists wear, and can be used as engine fan blades. Silicon carbide fibers are composite with ceramics and can be used at temperatures up to 1500C, which is much higher than that of superalloy turbine blades (1100C).

"Director Yang, I hope you can lead the staff of the real yàn room to go all out and develop high-strength composite materials at every cost, which is of great significance to the company and the society!"

"Please rest assured that our R&D team will go all out to face difficulties and strive to develop supporting composite materials before the aircraft is put into production."

"Excellent! Seniors, seniors, I hope you can work with peace of mind, combine work and rest, how much scientific research funding is needed, and the company will never treat you badly! ”

Liu Yu swore that he was boasting about Haikou, he was not pretending to be forced, in order to build an airplane, this investment is considered a hair?

As long as you can build an airplane, you can go to Shache country, Khotan, and even Bi country, and dig some jade and Hetian jade casually, and you will return to your roots!

Liu Yu's promise has greatly encouraged everyone, asking for money and money, equipment and equipment, such good conditions, it is not a problem to develop by yourself.

"Boss, the material room needs a batch of X-ray flaw detectors, spectral direct readers, metallographic analyzers, and tensile impact machines, you see?"

"Boss, I'm engaged in CNC machining, can you buy a batch of new machine tools, preferably more than seven axes, I also know it's difficult..."

"No problem! Everyone write an application, even if you go to smuggle, I will get you a batch back! ”

The corners of Xu Liang's mouth twitched, this guts is fat enough, don't say it if you smuggle it~ The others scattered in a hurry, and they all went back to write applications.

Only the old employees of the machinery factory were left in the conference room, who did not belong to any department and had withdrawn from the front line of production and were assigned to the administrative and confidential departments.

These old employees are all treasures in the factory, not only loyal and reliable, but also experienced, just responsible for administrative management and confidential projects; Some highly classified positions can be given to them.

"Comrades, the model has decided on Kiyu?"

"Boss, after many investigations and repeated studies and comparisons, we unanimously recommend: Cirrus SR-20 production line is the one we purchased last time!"

There are three of them in this aircraft factory, with a unit price of more than 2 million, which is equivalent to the Mercedes-Benz BMW in the car, and the safety, comfort, and airworthiness are very good.

Developed by Cirrus Aircraft, the SR-20 is a small piston propeller aircraft with a composite fuselage that can carry up to four people.

Original aircraft equipped with Garminperspective avionics system and advanced navigation equipment. The control device is a control side stick, connected to each control surface through a steel cable, and realized by an electric motor through the trim, which is a highly electronic small aircraft.

With a unique complete parachute system (CAPS), the parachute can hold up the entire aircraft, which can effectively protect the life safety of the crew in an emergency. Ideal for use as a private jet, junior trainer.

Chinese name: Xirui SR-20

Foreign name: Cirrussr-20

Manufacturer: Cirrus Aircraft Design & Manufacture Corporation

Aircraft category: single-engine four-seater

Engine: Six-cylinder direct-injection piston engine

Rated horsepower: 200 horsepower

Rated speed: 2700rpm

Fuel used: No. 100 aviation gasoline

Total Fuel Capacity: 58.5 Gallons

Maximum take-off weight: 1383 kg

Maximum landing weight: 1383 kg

Wing structure: lower single spar structure

Landing gear: front three-point type

Brakes: Hydraulically driven disc brakes

Maximum range (km) 1480

Maximum cruising speed (km / h) 259

Standard cruising speed (km/h) 239

Maximum cruising altitude (m) 7680

Take off distance (m) 980

Landing distance (m) 700

……

"Boss, this aircraft has excellent performance and is widely used, if imitation is introduced, there will definitely be a good market!"

Liu Yu thought about it and asked, "Uh~ Lao Xu, have you thought about it?" This aircraft is selling so well and the technology is very sophisticated, will Cirrus sell us the means of production? ”

"Hehe~ Boss, who sued you that this plane sells well?" Xu Liang was quite proud, and finally there was something that the boss didn't know.

Liu Yu was stunned for a moment, listening to what this means~ This plane doesn't sell well? Unlikely!

to be continued

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