Bright Sword Military System

The shortcoming that Wang Xuexin mentioned actually exists as long as it is a helicopter.

Don't VS300 type [-] and previous models have this problem?

Hans FA223 will not have this problem?
Without exception, they inevitably have unbalanced problems.

However, if VS300 Type [-] and previous models have unbalanced problems, there are only two reasons, either the engine is faulty, or the tail rotor is damaged.

The former is because the VS300 IV has only one engine. If the engine fails, even the main propeller will not be able to rotate. At this time, it is superfluous to consider the tail rotor.

In the latter, the probability of the tail rotor being damaged in battle is very small, because it is perpendicular to the ground, and for ground infantry, the bombed area is almost a line... It is better to destroy the entire tail of the helicopter if it is damaged. It's easier to break.

The VS300 Type [-] is different. With four engines and two large-area main propellers, as long as the enemy machine gun shoots a shuttle at it, the main propeller may be interrupted or injured.

What's more terrible is that the four engines have a high probability of failure or being hit by bullets... The engines are too obvious at the top of the two wings.

Does this mean that this kind of twin-rotor helicopter is too fragile?
Vulnerable enough for the enemy to spin around in the air with a light touch and then crash?
How can equipment with such poor survivability be put into the battlefield, especially in the mountains... You must know that the mountains are full of hidden enemies and dangers everywhere.

At this time, a technician felt strange: "So, how did Hans' FA223 solve this problem?"

"They didn't solve the problem!" Alberta replied: "So the survival rate of this helicopter on the battlefield is very low!"

Hearing this, everyone couldn't help being silent. If Hans, who is at the top of helicopter technology, can't solve this problem, don't they have to think about it!
"Our Type 223 survival rate may be lower than Hans' FA[-]!" Alberta said with a frown, "Because they only have two engines, but we have four!"

The failure rate of four engines is obviously higher than the failure rate of two engines, and it is not only twice as high... The reason is that VS300 needs two engines to drive a propeller at the same time, which makes its transmission more complicated and prone to interference.

This sudden problem made the researchers in Alberta helpless, and they discussed it for a long time without finding out why.

Some said: "This is the risk we need to take to use the low power engine to increase the load capacity! It is more reliable to increase the engine power instead of stacking multiple engines like this! If we want to use this helicopter, we must accept it weakness!"

Another said: "If we just use it for transportation? That is, let it fly in a relatively safe area, then this helicopter should still be valuable?"

……

The technicians argued endlessly with each other, and most of the opinions were that this helicopter should be produced first, and then it can be gradually improved in the future.

But Wang Xuexin does not think this is necessary.

"Gentlemen!" Wang Xuexin pointed to the design drawing and said, "Have you ever thought that we only need to design a synergy device between the two rotors to keep them in balance, and we can solve this problem?"

Alberta's eyes lit up, and she asked, "Synergy device? What type of synergy are you referring to? Can you be more specific?"

"It's very simple!" Wang Xuexin drew between the two rotors with his finger, and said, "We only need to transfer the rotating shaft originally used for the tail rotor to the space between the two rotors as a spare part, and it can be connected to the Powering it on the other rotor!"

"I'm afraid it won't work!" Alberta shook his head and denied, "For example, only one engine of the rotor on the other side is broken, and we use the rotating shaft to provide it with additional power. Isn't it still unable to maintain balance?"

Wang Xuexin rolled his eyes and replied: "There are four engines, and there are only four possibilities for failure: one is that one engine is damaged on a single wing, the other is that one engine is damaged on each of the two wings, the third is that two engines are damaged on a single wing, and the fourth is that the engine is damaged by a single wing. Three engines failed."

Wang Xuexin looked around and saw that there was no objection, and continued: "For the second case, that is, one engine is damaged on each wing, we can completely ignore it, because it just keeps the balance. The first case is the single-wing engine. One engine is broken... why can't we just turn off one engine on the other wing? That's the second case!"

Alberta heard this and understood: "Then, for the third and fourth cases, that is, when two wings are broken or only one engine is left, we can use the rotating shaft!"

"Yes!" Wang Xuexin said: "In this way, four engines will not increase the failure rate, but will also reduce the accident rate."

All the people here are technicians or R&D personnel, of course they can understand the meaning of Wang Xuexin's words.

If there is no drive shaft backup, as long as one of the four engines fails, the helicopter will crash because it cannot maintain balance.

However, with the addition of a transmission shaft for backup, as long as one of the four engines can work normally, it can drive the two propellers to rotate.

Of course there are dangers involved, especially if only one engine is working properly, at which point the helicopter is likely to overload and crash-land, but even this is much better than losing balance in the air and crashing in circles.

"As for the problem of the propeller!" Wang Xuexin said: "I think what we need to do is to increase its toughness and impact resistance, and we can't consider other things!"

Alberta agrees with Wang Xuexin's statement. After all, the propeller is placed there. Unless it is not used, it can only be solved in terms of materials.

Once the plan was settled, other problems were easily solved, and soon the helicopter entered the production process and produced a prototype in the third week.

Wang Xuexin was not in the three stores when the prototype was tested. He was directing the overall situation in Liyuan and organizing helicopter pilot training.

Wang Xuexin knew from the telegram that the test flight went smoothly: the prototype rose steadily into the sky and then easily flew at a speed of 200 kilometers per hour, and then hoisted a 2000-kilogram weight with full fuel.

Although the maximum range has not yet been calculated, it can fly 700 kilometers based on the fuel tank volume and fuel consumption.

Wang Xuexin is very satisfied with these data, this is the helicopter called "air truck".

It is that the power of a single engine is only 100 horsepower, which makes Wang Xuexin a little dissatisfied.

Wang Xuexin thinks that Mao Xiong's idea can be beaten in this regard... Mao Xiong is relatively backward in light industries such as communication electronics, and heavy industries, especially aero engines, are not inferior to Yingjiang at all.