Bright Sword starts with the grenade flat.

Chapter 243 Challenger Helicopter
As early as last year, that is, in 1954, Mizuo's enoki mushrooms had successfully detonated, and here it is!

After the mushroom explosion was successful, he actually stopped thinking about continuing research and development.

Fortunately, with Liu Xiu's paper, the higher authorities began to pay attention to the construction of these strategic killer weapons, and increased investment in missile research.

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"Director, what should I do with these turboshaft engines? They will rust if left here for a long time!"

The person who asked the question was naturally the assistant of the steel rolling mill. After Liu Xiu completed his graduation thesis and successfully graduated, he naturally returned to the Air Force and continued to work as his free agent. At the same time, he continued to serve as the director of the Red Star Steel Rolling Mill part-time.

These turboshaft engines were previously used to replace motors and act as centrifuges in order to get the mushrooms out before the Yinzu people.

However, the current postal refinery cannot naturally use turboshaft engines to replace motors for a long time. After all, with the completion of multiple thermal power plants in succession, its power generation capacity has also been greatly improved compared to 1952.

So dozens of turboshaft engines were naturally returned from the mail refining factory, because now a power plant has been established there, and the electricity generated is specifically used to refine mail.

When Liu Xiu looked at these dozens of turboshaft engines, he naturally couldn't let these engines be left here for scrap!
As for the turboshaft engine, the first thing Liu Xiu thought of was naturally the helicopter, especially the combat helicopter, which was still very powerful to a certain extent.

For example, the famous Ka-52 helicopters and Apache helicopters can play a great role on the battlefield, especially the air-to-ground battlefield.

However, the shortcomings of the aerial three-bouncer cannot be ignored. First of all, the speed of the aerial three-bouncer is too slow. The maximum speed is only about 150 kilometers per hour, and it cannot hover in the air. Although it can be used for short periods of time, it cannot be ignored. The take-off and landing distance is similar to that of a helicopter, and it is not picky about the take-off and landing sites.

But the method is the same as a real helicopter, hovering in the air and rappelling. Of course, the biggest point is that its carrying capacity is limited. It can only carry up to three combatants at a time, including the driver.

And in addition to carrying weapons and being used as a combat helicopter, it is also very good to be used as a transport helicopter. After all, the Black Hawk helicopter is also very famous in war.

Although the three-bouncer in the air is very good, simple and practical! Safety and low noise.

Now that the conditions for manufacturing a helicopter are met, Liu Xiu naturally wants to build a helicopter. After all, the Black Hawk helicopter can reach a maximum speed of more than 300 kilometers per hour, not to mention other things! It's almost twice as long as the three-bouncer in the air.

The reason why Liu Xiu chose to make the three-jump ball in the air in the first place was because he had no choice. After all, it was easy to make the three-bounce ball in the air! After all, this is much simpler than making a helicopter. Considering the conditions during the war of resistance behind enemy lines, it was already very difficult to make a three-jump gun in the air.

And the most important point besides this is that the load capacity of the Black Hawk helicopter cannot be underestimated. It has 4.9 tons in the air, but its maximum take-off weight has reached 9.9 tons.

In other words, the loading capacity of the Black Hawk helicopter can reach five tons, which is much more than the 300 kilograms of the three-bouncer in the air.

If the weight of a fully equipped soldier is 100 kilograms and the load capacity of five tons is calculated, the Black Hawk helicopter can carry fifty soldiers at one time, but in fact it is not achieved. After all, fuel is not included in the air. The fuel tank capacity of the Black Hawk helicopter is more than 1,200 liters, which is about one ton of fuel weight. However, even with this four-ton load capacity, it can still carry forty fully equipped soldiers. An airdrop operation is underway.

Of course, under normal circumstances, the Black Hawk only carries about twenty soldiers. After all, the Black Hawk is not a pure transport helicopter. It is also equipped with two Gatling guns and some corresponding ammunition! By the way, a certain amount of loading redundancy is left to make the helicopter's flight more flexible.

The performance of Liu Xiu's turboshaft engines, which are used to replace centrifuge purification engines, is almost at the same level as the T700 turboshaft engine of the Black Hawk helicopter.

Of course, it may not be as good as the T700 of the Black Hawk Helicopter in terms of life, but except for the life of the engine, other parameters are also very similar.

Therefore, according to the parameters of the engine, Liu Xiu can now directly build the Black Hawk helicopter according to the design drawings of the Black Hawk helicopter that he saw before traveling.

Yes, the design drawings of this Black Hawk helicopter have long been disclosed on the Internet. After all, it was a thing forty or fifty years ago, so naturally there is no secret at all. However, for the outdated trend of Black Hawk helicopter , but Liu Xiu didn't want it, because although the Black Hawk helicopter's speed of about 300 kilometers per hour was twice as fast as the three-bouncer in the air, it still felt a bit slow for Liu Xiu.

Moreover, single-rotor helicopters with tail rotors such as the Black Hawk helicopter have a big disadvantage, that is, as long as the tail rotor is destroyed, the helicopter will be finished, because the single-rotor helicopter will produce an axial rotation when rotating. rotational force.

Therefore, the lateral thrust on the tail rotor must be used to keep the helicopter from spinning in the air. Therefore, once the tail rotor is damaged, the helicopter will fall into a spin situation due to the axial force.

After all, the tail rotor is different from the rotor on the top of the helicopter and is not easily damaged, and the existence of the tail rotor will waste 20 to 10% of the helicopter engine power.

Therefore, in order to overcome this shortcoming, coaxial twin-rotor helicopters have emerged, such as the famous Ka52 helicopter. It is a helicopter that does not require a tail rotor, because the two rotors of a twin-rotor helicopter rotate in opposite directions to each other. This successfully offsets the axial reaction force caused by the rotation of the respective rotors.

Therefore, the survivability of such helicopters on the battlefield is much better than that of Black Hawk or Apache helicopters. On the battlefield of Big Bear that had not ended before Liu Xiu's time travel, the Ka52 helicopter was knocked out by a single-soldier anti-aircraft missile. It hit the entire tail of the plane, but it still flew back safely.

However, what Liu Xiu wants to produce is not a helicopter like the Ka52, because the speed of the Ka52 helicopter is actually no different from the speed of the Black Hawk and Apache helicopters. The maximum speed is 350 kilometers. There is no qualitative improvement at all.

The helicopter Liu Xiu wanted to build this time was actually the Challenger helicopter that had successfully flown just before Liu Xiu crossed over.

The reason why Liu Xiu chose this helicopter as the object of imitation was naturally because the flying speed of this helicopter exceeded the speed of traditional helicopters. Its maximum flying speed had reached more than 460 kilometers and nearly 500 kilometers.

So this helicopter naturally became Liu Xiu's first choice. Since Liu Xiu was crossing the river by looking into the future, and there were so many advanced designs to choose from in the future, he naturally had to choose a helicopter with the best performance and the most advanced design concept. imitated.

(End of this chapter)