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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?

“There are no insoluble problems, there is a reluctance to solve 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, during bench tests, the main gearbox collapsed, for which they received a “punishment” from the Ministry of Industry and Trade in the form of ... additionally allocated 985mln. rubles (Izvestiya 03.07.013g), and then another “About the 38 billion rubles will be sent to the revision of the new heavy transport helicopter Mi-2015 before the end of the year (1,117g),” (ATO.RU 15.09.015g) announced.

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" removed from service), now we hope that this demonstrator will cope with the road, although if he left the tail screw, then in the near future there will be a replacement again, because for high-speed projects such helicopters do not pull, for example, a speed record for the aerodynamic and with wings Mi-24 = 370k / h, and the maximum speed is equal to 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 Mikheev, so they have technical stagnation and Russian Helicopters, using old friendship, give them a helping hand, giving Americans more time to develop and fine-tune modern projects, moving our promising projects -32-10, Ka-92 Ka-102 from the advanced catch-up.

But I will return to the transverse scheme and, to begin with, a brief comparison of the Ka-22 rotor wing and the Mi-6 helicopter, since each of them had two D-25В engines and had to solve the same tasks. At the exit, the Mi-6 turned out on ~ 1,5. heavier, although the Mi-6 has one tail screw D = 6,3м., and the Ka-22 has two pulling screws D = 5,9м. Cruising speed of the Mi-6 with trapezoidal blades = 200 / h .; Ka-22 under the same conditions -270k / h. Their maximum take-off weight is the same and is equal to 43,5.

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 suggests itself that it is time to replace the heavy obsolete Mi-26 with the rotorcraft of the transverse scheme, taking all the best and acceptable with a modern aircraft from the B-12 and Ka-22.

Today the 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, when operating in isolation from the base, will be used as the APU when starting the main engines. On the stabilizers install propellers that will receive a rotation from the TV7-117 through the shafts. In the forward flight, the stabilizer propellers will maintain the cruise speed of the rotary-wing, which is only due to the retractable landing gear and the lack of frontal resistance xv. propellers will grow by ~ 50 / h, plus thrust tail rods, which in total will increase the cruising speed by at least 100 / 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: the stabilizers perform turning on the 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 very much like the designers of the KVZ (Kazan Helicopter Plant) to patent the rotary-winged scheme with rotary stabilizers, because sooner or later, life will force the designers to switch to transverse schemes, and not least to replace the Mi-14. We must not allow this scheme to be in the USA, where it will be used immediately, because with such a scheme with serial engines and aggregates, the profitability of helicopters without Chubais "nanotechnologies" will increase significantly.

Vitalii Belyaev specifically for Avia.pro

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