As a top bull in the field of helicopters, Viktor Vladimirovich Kapaya understood what he meant as soon as he heard Chen Geng's words, which was nothing more than asking himself to build a technical verification machine first.

However, this is actually exactly what Viktor Vladimirovich Kapaya wants, for Viktor Vladimirovich Kapaja, he, including the Miri Design Bureau, has never been engaged in tiltrotors before, and if he allows himself to directly engage in V-22 "Osprey" with a maximum load of 10 tons and a maximum take-off weight of 27.4 tons without any technical preparation, he really does not have that certainty. He immediately nodded, "No problem, are there any other requirements, sir?"

Viktor Vladimilovich Kapaya cooperated so much, but it was a little unexpected by Chen Geng, he groaned for a while, and said to Viktor Vladimirovich Kapaja: "The third point is that the V-22 'Osprey' is the engine nacelle and the rotor rotate as a whole, I hope you can do the engine nacelle does not move, only the rotor rotates, is it okay?"

The engine nacelle does not turn, only the rotor tilts?

Chen Geng's request made Viktor Vladimirovich Kapaya slightly stunned, and couldn't help asking, "Why?"

"Because the V-22 has a big design flaw, that is, it is prone to vortex ring problems when descending rapidly......"

Before Chen Geng's words were finished, Viktor Vladimirovich Kapaya patted his head: Yes, Vortex Ring!

The so-called vortex ring means that when the helicopter descends rapidly, the high-pressure downwash airflow returns to the low-pressure rotor outside the rotor radius, and re-enters the high-pressure downwash airflow, and forms a circulation.

The appearance of this circulation reduces the actual output of the rotor, which is roughly analogous to a car tire slipping in the mud to use a simple analogy.

"I learned that when the V-22 Osprey tiltrotor slips in the air during the rapid descent, it will lead to a loss of lift, and in this case, increasing the rotor power will further worsen the slippage," Chen Geng ......told Viktor Vladimilovich Kapaja.

"I understand," without waiting for Chen Geng to finish speaking, based on the pride of a technician, Viktor Vladimirovich Kapaja nodded: "I will do a computer simulation, and if the results of the calculation prove that the situation of the vortex ring can indeed be linked when the engine nacelle is not moving, then I will do it." ”

Viktor Vladimirovich Kapaya was so obedient, Chen Geng was also very happy, and he further explained to Viktor Vladimirovich Kapaja: "In fact, there is another advantage of the engine nacelle being fixed, that is, it is convenient for the machine gunner on board to provide fire cover to the landing personnel during the take-off and landing phases, and it is also because of this that the V-22 had to develop the remote-controlled machine gun installed in the belly, but even so, this remote-controlled machine gun is very limited in use." ”

Viktor Vladimirovich Kapaya just substituted the situation that Chen Geng said a little bit in his mind, and immediately found that what Chen Geng said was indeed right, if the engine nacelle kept horizontal, but only the rotor did horizontal and vertical tilting, it was indeed the best result for the combat aircraft - and in the future, the biggest user of the tiltrotor must also be the military - he immediately nodded happily: "OK, boss, just do as you say!"

Probably too excited, after Viktor Vladimirovich Kapaya finished speaking, he couldn't hold back his mood anymore, and immediately said goodbye to Wang Dazhi and Chen Geng.

Viktor Vladimilovich Kapaya left, and Wang Dazhi couldn't hold back any longer: "Chen Dong, are you very optimistic about the tiltrotor?"

Of course, Wang Dazhi can see that what Chen Geng is now asking Viktor Vladimirovich Kapaya to do is completely exploring the aerodynamic characteristics of this special aircraft like a tiltrotor, and his previous statement is enough to show how much he attaches importance to this brand-new flying machine.

Chen Geng thought for a while and said: "Lao Wang, let me tell you this, the tiltrotor is the future, and we are now starting to slowly accumulate technology, so that it is possible not to be left behind in the future." ”

Is it the future?

Wang Dazhi felt that Chen Geng was exaggerating, but he had always been unswervingly implementing Chen Geng's decision, and immediately said: "Understood, please rest assured, chairman, in the future, I will definitely tilt resources appropriately in this regard." ”

Chen Geng smiled and nodded.

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Unsurprisingly, Steve Ballmer's first round of talks with FedEx, UPS, and USPS collapsed.

FedEx, UPS, and USPS completely disagreed with Steve Ballmer's conditions, requiring eBay to sign exclusive cooperation agreements with the three courier companies, and even Steve Ballmer reminded the three courier companies that after this negotiation, the negotiators of the three courier companies even added a new condition, that is, eBay must give the three courier companies a certain amount of pre-emptive purchase of shares before going public.

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PS: Sorry brothers, please wait a few minutes.

Viktor Vladimirovich Kapaya just substituted the situation that Chen Geng said a little bit in his mind, and immediately found that what Chen Geng said was indeed right, if the engine nacelle kept horizontal, but only the rotor did horizontal and vertical tilting, it was indeed the best result for the combat aircraft - and in the future, the biggest user of the tiltrotor must also be the military - he immediately nodded happily: "OK, boss, just do as you say!"

Probably too excited, after Viktor Vladimirovich Kapaya finished speaking, he couldn't hold back his mood anymore, and immediately said goodbye to Wang Dazhi and Chen Geng.

Viktor Vladimilovich Kapaya left, and Wang Dazhi couldn't hold back any longer: "Chen Dong, are you very optimistic about the tiltrotor?"

Of course, Wang Dazhi can see that what Chen Geng is now asking Viktor Vladimirovich Kapaya to do is completely exploring the aerodynamic characteristics of this special aircraft like a tiltrotor, and his previous statement is enough to show how much he attaches importance to this brand-new flying machine.

Chen Geng thought for a while and said: "Lao Wang, let me tell you this, the tiltrotor is the future, and we are now starting to slowly accumulate technology, so that it is possible not to be left behind in the future." ”

Is it the future?