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Is it possible to replace the helicopters from the last century?

Is it possible to replace the helicopters from the last century?

"Unsolvable problems do not happen, there is reluctance to deal with them ..."
Evgeny Gorbunov

I think that designers and cost centers together with the leadership of the holding company "Russian Helicopters" only one wish, what would replace the helicopters from the distant past to the modern, the rest they have everything! But the development of the Arctic started all the same Mi-8, Yes Mi-26"The three-hour flight to Tiksi on boiler, most took place over the Arctic Ocean"- Said the commander of the Mi-26 Alexei Pavlov.

All good Mi-26, «And the engine consumes up to 3100 kg of fuel per hour, and the cost of flight hour is about 600 thousand. (Mi-26. Hercules in the sky ...). Despite the fact that in Soviet times was cheap kerosene, Mi-26 and then was not as massive as the heavy Mi-6, and now simply ruinous. A simple calculation: 3ch x 2 = 6ch and 6ch. x 600 000r. = ~ 3,5 mln. Rub., It turns out that's so incredibly high amount for a single flight from Tiksi to about. Boiler and back.

At the time, ML Miles He turned his attention to cross-diagram to develop the once "successfully Fokker in Germany and Bratukhina in the Soviet Union." Benefits "scheme in the transverse range and carrying capacity on takeoff with a running start, she fraught with a successful constructive solution."
As you can see, in the design of heavy helicopters current designers path is, that it is necessary to pass to cross circuit. Continuous modernization of older helicopters - a disqualification of experts, so the designers have forgotten how to build a cost center is clearly helicopters and after thirty years of attempts to produce white light Mi-38, The test bench main gear collapsed, for what have received from the Industry and Trade Ministry "punishment" in the form of an additional allocation ... 985mln. rubles (News 03.07.013g), and then another, "On the completion of a new heavy transport helicopter Mi-38 end of the year (2015g) will be sent to about 1,117 billion rubles., should be announced by the Ministry of Industry and Trade Competition» (ATO.RU 15.09.015g).

So nice to make a marriage in aviation

only in Russia today!

During the creation of the Mi-38 was more "modern design" single-engine helicopters: Mi-H1 whose speed right up 520k / h, which would not allow himself even a student from helicopters because of the theory of the flight after the speed 400k / h it It will turn upside down and will continue to be unmanageable, followed by a meeting with the earth's surface. But in Russia, the people of "dark" will not understand "what - how much" gene. Konstr. MVZ A.G.Samusenko we decided to "calm" this picture (Mi-H1) in connection with the freezing of the real project Ka-92. Realizing that a picture is clearly overdone, MVZ designers adjusted the speed pile layout PSV (high-speed helicopter perspective) with the American female name «Rachel» and deciphering tricky: (Russian AdvancedCommercial Helicopter).

And I think, if he were a Russian, then would call Russian name,

say "Dunya" a Russian transcript: "Fools we have!"

But for a helicopter tail rotor and speed 400k / h. too big, so the replacement of the US Rachel built a demonstrator on the basis of Mi-24 for the future Mi-28NM. Beautiful, single (under the pretext of "Single" outstanding Ka-50 «Black Shark" withdrawn from service), and now we hope that this demonstrator road by, but if he will leave the tail rotor, in the near future will again be replaced because for high-speed projects such helicopters do not pull, for example, the speed record for aerodynamic wings but with Mi-24 = 370k / h and the maximum speed is 320k / h.

"Redesign" and endless "modernization" helicopters of the last century, the frequent changes in advance is not working, "projects", simulating the future high-speed helicopters at public expense - more smells Design fraud than the desire to upgrade the helicopter fleet.

Americans today do not have such outstanding designers as our Sergey Viktorovich Mikheyev, so they have the technical stagnation and "Russian Helicopters" an old friend gave it to them "a helping hand", giving Americans more time to develop and fine-tuning of modern projects, moving our future projects Ka -32-10, Ka Ka-92-102 of the most advanced in the catch-up.

But back to the cross and the scheme to start a brief comparison of the rotorcraft Ka-22 and Mi-6, because each of them had two of the D-25V and had to solve the same problem. The output of the Mi-6 has turned out ~ 1,5t. heavier, although the Mi-6 one tail rotor D = 6,3m., while Ka-22 pulling two screws D = 5,9m. Cruising speed Mi-6 trapezoidal blades = 200k / h .; at Ka-22 under the same conditions -270k / h. Maximum take-off weight they have the same and equal 43,5t.

Hence, the benefits are well looked impressive cross-circuit in comparison with the classic that later proved our outstanding Mil helicopter - a giant in-12, built on the basis of Mi-6.
Further, the conclusion is that the heavy legacy of Mi-26 it is time to replace the transverse vertibirds circuit, taking in and Ka-12-22 best and acceptable to a modern aircraft.

Today rotorcraft should look like this:
Console wings set on the D-136 (standing on the Mi-26, in Perm in the development of national PD 12V only beginning) with gear and rotor. Very heavy tail end of the beam and replace the lighter Samoletnaya tail section, so the weight of the structure will be easier. Coley will tail section, there must be a tail assembly, but vysokoraspolozhennymi stabilizers. For what?

On the keel to install the engine, say TV7-117, which is at work in isolation from the base will be used as the APU when you start the main engines. On the stabilizer install propellers that will get rotated by TV7-117 through shafts. In forward flight screw stabilizer will maintain the desired cruising speed rotorcraft, which is only due to the retractable gear and the absence of drag xB. screw grow ~ 50k / h, plus the tail rotor thrust, for a total increase cruising speed of at least 100k / h.

Be sure and crew in-flight failure of one engine, since no problem to continue the flight to another engine by using the tail rotor of any gross weight and generate boarding an aircraft.
 
And that's not all: stabilizers perform turning on 90grad. For what?

Before take-off in the helicopter with a maximum gross weight stabilizers turn 90grad. propeller-fan up and then they will give a vertical thrust, balancing the weight rotorcraft that will ensure steady rise. After take-off and set the speed regulators are transferred to the horizontal position and vertical thrust screws are transferred to the horizontal to maintain the desired cruising speed. Responsibility for the establishment of vertical lift screw-fans go to the stabilizers!

The vertical tail rotor thrust will allow to fill the same amount (minus own weight) of additional fuel to increase the range of flight! Vskidku: AB-17 screw diameter = 3,6m issues starting traction = 2270kg. Two screws = 4540kg., Take the weight of the engine TV7-117 and screws will 4540kg.- 700kg = 3840kg. All fuel consumption is ~ 3,5t rotorcraft, ie by hvostoyh screws range will increase by 1chas. Or 350km. With regard to the Mi-26, which range from the maximum load = 475km. + = 350km 825km.

Modern propeller rotorcraft fan must be aligned in a circular hood, which will substantially increase traction and significantly reduce the size of the diameter, has significantly lower noise propellers.

In conclusion, I would like very much to designers KHP (Kazan Helicopter Plant) patented circuit rotorcraft with pivoting stabilizers, because sooner or later, but life will force designers to move and cross the circuit, and last but not least to replace the Mi-14. It is unacceptable that the scheme was in the United States, where she will take advantage immediately, because in such a scheme, with serial engines and aggregates will significantly increase the profitability of helicopters without Chubais "nanotechnology".

 

Vitalii Belyaev specifically for Avia.pro

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