Originally, it was to be ready to celebrate the New Year in Guiyang, but who knew that the progress of the development of the Z-18 was so rapid, even if the MZ-2200 engine was finalized, it would take more than a year of test work to be able to say that it could barely meet the initial delivery of the installation test flight, but the 602 Institute, which had long been unable to wait, frantically put a few engines that were originally used as a backup for the S-70 Black Hawk helicopter, and managed to get two prototypes to do the Z-18 for testing. Pen ~ fun ~ pavilion www.biquge.info

In this way, the engine compartment that was originally designed to install the MZ-2200 was reluctantly stuffed into the T700-GE-701A turboshaft engine used by the Black Hawk helicopter, although the power is not as fierce as the MZ-2200 engine, but the performance is mature, and the power can also meet the use of the straight 18 test flight in the case of no load.

This is also the reason why when Yang Hui arrived, he could directly see that the engine was installed on the prototype, which was really the reason why the 602 Institute did everything to grab the progress.

But you have to admit that this method has a certain effect, although this will increase some waste of man-hours in the design, and the use of the T-700 engine provided by the United States is also sneaky, if it is really found out, I am afraid that the twenty Black Hawks that have finally had the opportunity to continue to use will also cut off the production and supply of spare parts, so it will definitely not be appropriate.

It's just that now the 602 Institute can indeed get the T-700 engine to be used again, and it must have dared to do so after getting the approval of the army, otherwise the Z-18 at this time would definitely be still conducting simulation tests, or simply postponing the manufacturing of the prototype. Of course, there is also the possibility of using the MZ-2200 for ground testing, which has not yet completed the test, and the aircraft will not fly for the time being, waiting for the final finalization of the MZ-2200 engine in a year or two.

Now everything is fine, the length of the T-700 engine is also a section shorter than the MZ-2200, although the size of the engine and the engine compartment are not suitable, but it can be installed in it, and the air flow of the engine is a little mismatched, which can only be solved by installing the design of multiple bleed valves, which can be regarded as being able to make the engine smoothly match the operation.

In fact, not everyone knows that this time the straight 18 is equipped with a T-700 engine, after all, this person is mixed, no one can guarantee absolute secrecy, at least this time the straight 18 prototype general equipment off the assembly line ceremony is relatively public, just look at the circle of onlookers to know that there are absolutely a lot of people who care about this helicopter.

First of all, the army, navy and air force were all in place, and even Yang Hui faintly saw an officer from the Second Artillery Corps, although the military uniform he wore was the same as that of the army troops, but Yang Hui also knew that this guy was from the Second Artillery Corps after inquiring.

It is really not interesting to say that the Second Artillery came to pay attention to the development of the Z-18, and if you want to calculate it, the Second Artillery is really not much dependent on aircraft, but it is said that they will be more involved in aerospace, not to mention the helicopter, even if the Second Artillery is equipped with a helicopter, it will only be used for commuting.

For this simple commuting needs, in fact, the use of the Z-9 helicopter can meet the use requirements, and now there is not much need to pay attention to the Z-18 helicopter on such a large scale, so Yang Hui did not pay too much attention to the second artillery.

It is still the army aviation that has the greatest demand for the Z-18, and now it seems that it is also the most concerned about the Z-18 of the military, throughout the development process of the Z-18, it is really an absolute need for people to give people, to give money, and even the T-700 engine used on the Black Hawk has taken a great risk to get it to meet the needs of the installation test.

All this, you can't say that it is not full of sincerity, so the 602 Institute also feels a great responsibility, although this is not the first flight ceremony of the Z-18, but the final assembly of the prototype is completed, it is also very happy and important.

"Look, this is our straight 18 helicopter, and now the empty weight of the aircraft has been reduced to 6.2 tons by various means, although such data can not reach the 5 tons of light like the Black Hawk helicopter, but it is also very effective to make the straight 18 and straight 8 aircraft open the gap, you must know that before this, we have a domestic manufacturing straight 8 helicopter empty weight is 7 tons ......"

For the introduction of the straight 18 empty weight effectively reduced matter, Yang Hui said that this is normal, if the empty weight can not be lowered, this is the real shame of losing a big hair, you must know that this time the straight 18 is a complete cancellation of the original extremely heavy ship bottom, and a large area of replacement with lighter aluminum-lithium alloy, composite materials, the engine is directly less than one.

The weight loss effect of these improvements. If the weight reduction is not guaranteed to be close to about one ton, the designer can directly find a hole to drill into.

With the leadership of the on-site reception and introduction personnel, Yang Hui still reluctantly came to the side of this helicopter, not that Yang Hui is not interested in this straight 18 helicopter off the assembly line, but that this is really unbearable 602 aesthetics.

And this is actually to blame Yang Hui.,I didn't think about designing a paint for the straight 18 to use.,Although it can't be said that people feel awesome when they see it.,But how can it not reduce the combat effectiveness to the lowest min?

But this time the 602 Institute is really tough enough.,That's to directly pull out the paint of the previous straight 5 era and paint it with the straight 18.,What you must know is,The helicopter paint of the straight 5 era uses the all-white coating.,It's just a one-time loss of face in this life.,The ugly one is called a miserable.。

Yang Hui also admitted that when the all-white paint is cloudless in the sky, when looking at the plane in the air from the ground perspective, this paint can have a certain low visual effect, but now this is the plane off the assembly line to pull it out and pretend to be forced, not to say to join the army!

No matter how bad you are, painting the army's three-color camouflage can be regarded as a little eye-catching, and other options such as army green painting are not impossible, as long as the August 1st military emblem is painted, it can still be regarded as a very tasteful, now......

Anyway, as long as you can endure it, you can bear it for the time being, at least the army did not show dissatisfaction with the paint, then Yang Hui will admit it, and then wait for the army to send the bigwigs away, but the all-white paint is resolutely not able to ask for it anymore, this is the most basic aesthetic problem, and it must not be tolerated and tolerated.

However, in addition to the painting, Yang Hui really can't find any mockery of this straight 18, first of all, the fuselage has been controlled to less than 5 meters, which can definitely meet the needs of the navy carrier, and the new four windshields are designed to feel the windshield of passenger aircraft, and there will be a very good optimization for the pilot's field of vision, compared to the previous straight 8, it is simply a difference between cloud and mud.

What Yang Hui didn't expect at all is,I don't know whether it's intentional or unintentional in the design of this straight 18,Actually designed a folded line through the front and rear fuselages in the lower part of the side,The part below the fold line shrinks sharply inward,It seems that there is a design that takes into account the stealth effect,Overall, this is more like NH-90The fuselage fold line design,It not only plays a practical stealth role,It can also play a good visual beautification effect,It can be described as killing multiple birds with one stone。

However, when Yang Hui actually asked the designer about the design idea of this broken line, the answer he got was really so much that people almost spit out a mouthful of old blood, which was really ..... (To be continued.) )