"Chief, I'm going to have to try it myself. Seeing that Zhuang Jianye was happy, Lao Mu was not ambiguous, and the head of the headquarters in front of him looked resolute.

Just now, Lao Mou has explained the subversive role of "bearingless helicopter propeller hub" very clearly.

Different from the traditional helicopter propeller hub, the hydraulic cylinder and bearing are required to connect the helicopter flight control system to realize the lateral and longitudinal deflection of the propellers, so as to realize the steering of the helicopter.

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The bearingless helicopter propeller hub completely abandons this complex mechanical structure, and uses two different composite materials to control the helicopter blades with the material's own flexible slewing force and liquid damper.

The principle is similar to that of a rubber band with toughness, and when it is strengthened, it will automatically turn back when you release your hand.

Of course, the composite material on the helicopter propeller hub is not as simple as a rubber band, but the basic principle is similar, which is to use the flexible resilience of the material itself to complete the transmission and recovery of control.

In this way, the propeller hub of the helicopter can be more sensitive to the control instructions issued by the pilot, and at the same time, it can quickly return to its original state under the action of the material itself, or stabilize in the continuous state of the pilot.

All in all, he belongs to the kind of well-behaved boxer who can be salted and sweet, and can satisfy any posture he wants, even if the pilot is rude and violent, he can happily endure it.

In contrast, the traditional hydraulic bearing mechanical propeller hub is not so intimate, sometimes the pilot's lever is pulled up, the aircraft always has to be full for a second or two to react, and the same is true for resuming level flight, in addition to stabilizing the joystick, it is necessary to slightly do a downward pressure balance action, otherwise the hydraulic rod and bearing of the propeller hub are always not timely, and can only be artificially intervened.

This operation puts forward extremely high requirements for the pilot, at least there must be a advance of one to two seconds, otherwise the helicopter is sluggish for one second, and it is easy to have unpredictable problems, especially on the battlefield, it may be because of these two seconds, the enemy's missiles will hit me.

Pilots driving traditional hydraulic bearing helicopter propeller hubs need to be measured in advance, not to mention ground crews, there are hydraulics, bearings mean complex mechanical structure, complex mechanical structure means complex maintenance.

In fact, it is also true that the hinges on the propeller blades, the bearings on the hinges, the hydraulic rods on the bearings, and the hydraulic rods are connected to the bearings on the main frame of the propeller hub......

Each item must be checked, each item must be added with special lubricating oil, and each item must be made foolproof, but what makes the ground crew crazy is that the mechanical structure inside each hydraulic bearing mechanical paddle hub is like a honeycomb, which can make the dense phobia patient directly faint from the scalp tingling.

Therefore, this kind of paddle hub is not only a production trouble for manufacturing enterprises, but also a nightmare for ground staff.

Of course, this is not the most important, the key is that the weight of the hydraulic bearing mechanical propeller hub itself is there, even if it is a lightweight titanium alloy, but the overall weight is about 600 kilograms, which is still well controlled, if it is a little worse, such as Russia, a large number of aluminum alloy and alloy steel, the weight of the entire oar hub will exceed 1 ton.

However, Lao Maozi's problem solving is also simple and rude, since the weight of the propeller hub is large, then increase the engine power, and make a medium-sized helicopter with more people on the line, for example, the Mi-17 is a typical representative of this kind of thinking.

The problem is that there are many turboshaft engine models in the hands of Lao Maozi, so there is no need to worry about the problem of adaptation, but other countries are not so arrogant, just imagine, a 4-ton helicopter, the barehead of the paddle hub is 600 kilograms, leaving only about 3 tons of quota for other places, even if the helicopter designer is driven crazy, reluctantly making a helicopter, but there are inevitably regrets in performance.

For example, when the cabin is manned, there is no way to hang materials on the belly of the aircraft.

For example, the potential for modification of the aircraft is too small, and the adapted radar cannot be installed on the helicopter propeller hub, so that the helicopter has higher battlefield awareness and so on......

However, all this in the face of the "shaftless helicopter propeller hub" has become a thing of the past, not to mention anything else, as far as the ground support is concerned, it is tantamount to a great blessing, without the constraints of complex bearings and dense hydraulic rods, the ground crew only needs to do regular data monitoring of the composite materials of the propeller hub, and adjust the connection damper daily.

This results in only about 25% of the previous workload, which not only allows the ground crew to spend more time on more urgent maintenance, but also increases the helicopter attendance rate by 10 percentage points.

Don't underestimate these 10 percentage points, not to mention 10 percentage points in emergency operations, even 1 percentage point, it is possible to save the people from fire and water and achieve victory on the battlefield.

As for weight reduction, not to mention, composite materials are originally lightweight materials, the bearing and two-thirds of the hydraulic rod are canceled on the machine, and nearly 50% of the weight is reduced at once.

Such an extra hundreds of kilograms can be used as a load to realize the mixed transportation task of manned lifting of 4-ton helicopters, and at the same time, it also greatly expands the modification potential of helicopters.

Regardless of others, take mixed hoisting as an example, most of the artillery units generally use this mode of transportation, using traditional hydraulic rod bearing hubs, traditional cylindrical bearing integrated final reducer 4-ton helicopters, although theoretically able to lift the Type 86 122mm howitzer with special weight reduction treatment.

The problem is that it is okay to pose for a promotional video or make a product introduction display board, but in fact, the real artillery can't look at it at all.

The reason is very simple, there is no actual combat value, because in addition to hoisting a 4-ton light helicopter, the operating artillery and accompanying ammunition cannot be carried.

You can only throw down the old bachelor's cannon and turn over and go back to pick up the artillery and ammunition, or two helicopters can work together, one to hoist the artillery and the other to load the personnel and ammunition.

However, this is not cost-effective and maneuverable, and it is easy to expose the target to be hit by the place.

This is also the reason why the "air pickup" helicopter of the Tengfei Group in the early years was short-lived after hoisting artillery during the airborne force exercise, and then it disappeared, and the root is here, and the tactics are not flexible enough, and even the all-round loading of large-caliber mortars cannot be done, which makes the artillery feel very chicken.

However, the 4-ton helicopter after technical improvements such as the "bearingless helicopter propeller hub" is different, although it is also impossible to mix and load such a big guy as the Type 86 122mm howitzer, but the mixed loading of the Type 86 120mm mortar with a total combat weight of 206 kg is still achievable.

The five-person artillery squad sat in the engine room, and the Type 86 120mm mortar and a base number, a total of ten 120mm mortar shells were mixed and hoisted under the belly, and then the improved helicopter was easily excited to any attack corner to launch a surprise fire raid on the enemy.

Although the head of the headquarters is now leading the aerospace, he was a fierce general who received the baptism of the Liberation War and fought in North Korea for three years in his early years, and of course he knows what Lao Mou wants to express, that is, one sentence: such a helicopter has extremely high tactical value!