There are many stages that an aircraft needs to go through from an experimental aircraft to mass production, and test flights are essential. During the test flight, it can not only improve the poor safety performance, but also make some performance more practical and increase the luminous point of the aircraft.

Liu Fei's plane was very good, and after an error-free test flight, it was directly passed by Hughes boss with a stroke of his pen.

Boss Hughes obviously trusts Liu Fei very much, and intends to train Liu Fei as his successor.

The prototype for the test flight used Prad & Whitney's JT-4A, which is a turbojet. At Hughes's suggestion, Liu Fei replaced the engine of this aircraft with the same Pratt & Whitney JT8D. Originally, Hughes Boss planned to directly let Liu Fei change to JT9D with a large bypass ratio, but Liu Fei did not listen to Hughes, but chose JT8D, a slender and long air leak vortex.

This undoubtedly speeds up the production of the aircraft, because the JT8D is very suitable for this aircraft. On the contrary, if you switch to JT9D, Liu Fei knows that the performance of JT9D is very unstable: when the 747 came out, because the engine was very poor, Boeing also deliberately pulled the president of Prad & Whitney to the plane and blew up two engines in a row, and then the boss of Prad & Whitney felt that his face was unbearable, so he immediately began to study, and now Liu Fei does not plan to use the engine with a large bypass ratio.

The engine with a large bypass ratio is what Liu Fei intends to use for the extended model, not this standard model. Liu Fei even has a turboprop plan, but because he found that there doesn't seem to be such a high-power turboprop engine now, if it is strong. A minimum of six engines are required to drive the horse. But this obviously didn't work, so Liu Fei could only give up.

……

Soon, Liu Fei obtained 15% of the shares of Hughes Aircraft Company, becoming the only shareholder of Hughes Aircraft Company besides Howard Hughes, and the second largest shareholder. Now Liu Fei is completely working for himself, if he doesn't make some achievements, he won't be able to live up to so many shares.

Howard Hughes said that as long as the sales of this aircraft exceed 100 units, then Liu Fei will get enough funds to build an aircraft company, if Liu Fei still has a need for funds, then Liu Fei only needs to resell the 15 percent of the shares to Hughes, and he can get a good price.

Although this seems to be a loss-making deal, and it loses a lot of money, Liu Fei knows that Hughes is actually making a lot of money, because his plane is definitely comparable to an ivy like the Boeing 737. However, Liu Fei also knew that Hughes planned to support him, and then have a long-term and in-depth cooperation with himself, an aircraft designer who seemed to be very powerful and very potential.

As long as Hughes has such a design, it will only need to be continuously improved and practiced in 50 or even 90 years, and it will not be until these planes are retired that Hughes needs to develop new things on its own. At that time, Hughes Sr. and Hughes Jr. should be about the same, and Hughes must not always help his children and grandchildren to complete the following things.

For a family to prosper and endure, it must have good heirs. When the heir has the ability, the people below can obey him, obey his command, and not make small moves below.

There is no doubt that making small moves below will definitely seriously affect the development of the family.

What Hughes can do is try to give his offspring a good business experience and some initial capital. Of course, these start-up funds were taken out of Hughes by his own company, and these funds would be the last funds for Hughes Jr. if necessary.

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Hughes has just announced this project, and it quickly attracted a lot of partners, these partners are very powerful airlines, at least in Liu Fei's opinion.

Now what these companies need is some new aircraft to attract attention, Boeing and Airbus planes are too expensive, only rising stars like Hughes in order to open up the market, so the price of the aircraft will be lower. In this case, these airlines are definitely making a lot of money.

These companies can eliminate the laggards in their fleets at a fraction of the cost. It is even said that the range of the aircraft designed by Liu Fei is far more than the 2,600 kilometers of the current mainstream 737 model, which is 4,500 kilometers. This is simply a regional aircraft that can be used as a small trunk aircraft, and it can be seen as a complementary aircraft.

In addition, the aircraft was designed by Liu Fei with an extended-range model, which reduced the volume of the cargo compartment, added a larger fuel tank, and then used the CFM56-3D-1 engine produced by the more fuel-efficient CFM engine company, which has a large output and saves a lot of fuel because of the large bypass ratio. The biggest disadvantage is that if you use this engine, you may not be able to perform at its best due to aerodynamic shape and mechanical structure.

So Liu Fei redesigned the aerodynamic shape so that the CFM was tightly integrated into the fuselage, but because of the very high speed (1,152 km/h ultimate cruising speed, this is a high subsonic speed; The ultimate speed is Mach 1.02, which is a supersonic aircraft, but this supersonic speed cannot be maintained for a long time. Otherwise, you know, if the fuel consumption is too great, you will directly run out of fuel in the middle of the road and fall down. So you can avoid noise as much as possible.

[If it is not tightly combined with the fuselage, then this as a protruding object, there will be a lot of resistance at supersonic speed, and then, the engine falls off ......]

……

Liu Fei and Hughes's bet is very good, because Hughes Aircraft Company is a fighter manufacturer, so it is already very powerful, and now Hughes's things are really good, so the plane is also a big sell.

But the first one to order is the United States. The National Army Aviation ordered four FCA610-200ER converted into tactical transport aircraft, and according to the requirements of the military, Liu Fei increased the size of the fuel tank and used the military model CFM56 engine provided by the military.

The military model CFM56 is really vigorous, with low fuel consumption and high thrust, and even has the advantage of small size. Liu Fei had to sigh that the quality of military products is reliable, and it is better to produce military products in the future, at least he can rest assured.

Beauty.. China Eastern Airlines soon ordered four FCA610-200 models to fill more routes. Since the crash of China Eastern Airlines Flight 401, China Eastern Airlines' business has been a bit sluggish. Now that China Eastern Airlines needs some cost-effective and authoritative aircraft to make up for its decline, Hughes children's shoes are immediately the best target.

The short-lived supersonic capability also made the ER model a big hit, and Liu Fei felt that his goal seemed to be achieved soon, at least now the orders for the aircraft have been able to meet the needs of the aircraft for mass production.

Sure enough, Hughes soon came to tell Liu Fei that his promise could be fulfilled, because the current aircraft has begun to enter mass production mode.