The network has photos of a promising super-helicopter from Kamov

Forum Airbase and american magazine Defense Blog published materials in which images of the Russian helicopter of the future are presented. At least, this is how the authors of these materials described the rotary-winged machine, the official name of the project of which is the PBW - a promising combat helicopter.

The development, allegedly, belongs to the JSC "Kamov" - the design office, part of the holding "Helicopters of Russia". That "Kamovsky" logo can be seen in the presented photos.

At the same time, it was stated that the images of the “helicopter of the future” got into the network “accidentally”.

Some characteristics of a promising combat helicopter are noted, in particular its speed. If you believe this data, the WSP will be able to accelerate to a speed of about 700 km / h, which for modern helicopters is simply inaccessible values.

The image shows the dimensions of the PBV.

It has been added that the PBV will be equipped with internal compartments for weapons, new engines significantly increased power and "fighter wing".

The concept of a perspective helicopter includes a coaxial system of screws. The cabin is presented in such a way that the two seats in it are located not one behind the other, but next to each other. It is added that work is underway to improve the aerodynamic characteristics of the combat vehicle.

Comments

[Sailor]

Good luck! Crocodile!

[Same lech]

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers will be able to disperse the helicopter to 700 km.
I think the news is from the category of ducks.
Modern helicopters are now flying at a speed of 300km with a maximum of 400km and then immediately 700 km ... miracles and more.

[Sailor]

Indeed, such a breakthrough in speed is just 2 times (!) ... Without some tricks, like a tiltrotor or something like that, it sounds doubtful. And what was in his tail - nobody saw anything "pushing"? ))

[zyzx]

Quote: Seaman

And what was in his tail - nobody saw anything "pushing"? ))

Isn't the jet engine in the tail?

[Shurik70]

Quote: zyzx

Isn't the jet engine in the tail?

Yes, very similar to jet nozzles

[hrych]

And look at his glider, he’s like a fighter. Well, okay, the attack aircraft. Of course, more wings create lift, the steering wheel works according to the weft pattern, at certain speeds, the speed is given by the jet stream, which was parasitic in helicopters. And the screws with the gearbox from the power take-off shafts provide hovering, vertical take-off and landing. The screws are tricky, their fastening to the coaxial mechanism in the fairings, the rockets are retracted into the internal compartment, as well as the chassis. Everything is logical. Attack aviation was represented by helicopters and attack aircraft, it was time to cross these animals. It is a pity that we did not get the Mistral, with such things very formidable force projection systems would have turned out.

[Arh]

Here is a surprise surprise, eyes are happy! They came up with an interesting car! Some kind of breakthrough helicopter turns out 700 km / h !!!

[Alf]

Quote: Arh

Some kind of breakthrough helicopter turns out 700 km / h !!!

It remains to build it ... But the paper will endure everything.

[K-50]

Quote: Seaman

And what was in his tail - nobody saw anything "pushing"? ))

The turbojet engine is in its tail, and most likely, such a declared speed will be due to them, because it will not be possible to disperse it with the main screws.

[yehat]

the problem of speed increase rests on the main rotor.
at its expense it is impossible to disperse a helicopter well above 400 mph
the thing is in the propeller itself - the stall of the flow from the blades and a bunch of other aerodynamic joys.
for example, the whip effect - when moving forward, the blades will cross the sound barrier, and vice versa - will return to the sound. How fast will it break the screw?

higher speed should be achieved by a purely pushing propulsion, and the rotor must choose - or he pushes or carries, the combination becomes impossible.
I don’t think that Kamov radically solved the rotor problem

[dauria]

I don’t think that Kamov radically solved the rotor problem

And if in the "airplane" mode, you completely do not care about the propeller, disconnecting
gearbox from engines with clutches? By the way, overrunning couplings already stand between the shaft of the engines and the gearbox. The screw is completely symmetrical on the left and on the right - well, let it spin with a zero step (or even better, brake it). Well, he will create resistance - the wings and thrust of the engines, maybe enough to fly and drag. And get on a helicopter. In principle, this would be a radical alteration of the F-35 SVVP lifting fan — instead of a closed detachable fan, an open detachable screw. Only the tiltrotor scheme is more impressive in terms of fuel efficiency, whatever one may say.

[prodi]

very difficult.
Helicopter rotor and pushing in the tail. Drive from a common engine. Relatively speaking, there is a differential between them: we slow down one, power flows to another

[Sarmat Sanych]

The Ka-50 accelerated to 450 km / h. And this will have an advantage in all respects, from engines to aerodynamics.

[Same lech]

The Ka-50 accelerated to 450 km / h.

That's exactly what it accelerated ... its crack speed is much lower ... 260 km / h.

[Sarmat Sanych]

It was stated so. But in fact, the "Black Shark" had a cruising 300.

[yehat]

mi-24 a very long time ago 380 showed

[bald]

Hi Aleksey . From the picture you can understand that there are already two turbines in the rear part, or what will create horizontal traction. Only this picture. Perhaps when the screws rotate, air is drawn in (between the screws) and sent to the nozzles, then without turbines.

[Same lech]

Hello Vladimir?
Here, weight restrictions immediately come into play, and how much fuel will this vehicle eat with full combat load? and what will be this load? ... in general there are a lot of questions.

[bald]

I assume a different version below.
.

[bald]

Type of power take-off generator - only air take-off.

[SHURUM -BURUM]

Someone banged their heads against the wall, showed photos and pictures, promising a helicopter speed of 500 km. Where is this plywood now? Where is the author? Safely merged?

[Sarmat Sanych]

I recently read these "calculations" on the net

[LSA57]

Quote: The same LYOKHA

Modern helicopters are now flying at a speed of 300km with a maximum of 400km and then immediately 700 km ... miracles and more.

in 56 or 57 of the last century, leading academics in various fields were asked how scientific tasks could be carried out by satellites. some responded that they were not fond of fiction.
On October 4, 1957, the first artificial Earth satellite was launched.

[Vovad]

Uryayayaya! Again cartoons!))
They didn’t listen to us! Can they hear us now?
(Vova with pathos puffs out his cheeks)))

[Alexkorzun]

why it seems to me that this naughty thing was fooled by the Americans, (like all previous accidental plums) that they would strain and rush to the side.

[Lycan]

Quote: The same LYOKHA

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers can accelerate the helicopter to 700 km. what
I think the news is from the category of ducks.

Whatever the final speed - it’s good that over promising technology - think.

[Vol4ara]

Quote: Lycan

Quote: The same LYOKHA

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers can accelerate the helicopter to 700 km. what
I think the news is from the category of ducks.

Whatever the final speed - it’s good that over promising technology - think.

The problem is that it is being built across the ocean

[sdc_alex]

Quote: Vol4ara

The problem is that it is being built across the ocean

and they think already in the process of construction well or after

[Lycan]

Quote: Vol4ara

No matter what the final speed is, it is good that they think about promising technology.

The problem is that it is being built across the ocean

That's how they come up with (and then work out military expediency) - and build it. Previously, drawings and signatures in public procurement contracts did not appear on the machine.

[Ros 56]

As I understand it, there are two jet engines above the wing, standing on each side. Otherwise, why are air intakes?

[Dr.KonradMorgen]

Modern helicopters now fly at a speed of 300km with a maximum of 400km

Absolute Record - 460 km / h September 2010, Sikorsky X2.

[yehat]

You know, the issue of American absolute records is a separate issue altogether.
from flying to the moon to asking who invented the radio.
there were a lot of experiments in the usa, but the absolute nature of their results cannot be trusted at all.

the same raw osprey immediately accelerated to 420. Now I do not know.
and there were jet helicopters.

[Dr.KonradMorgen]

who invented the radio

Russian Popov and Italian Marconi are competing for priority in inventing a really working radio communication - there were no Americans there either.

there were a lot of experiments in the usa, but the absolute nature of their results cannot be trusted at all.

Well - as if there is a "hypothesis" if you may say so, that Gagarin did not fly into space, and the first cosmonaut of the Earth was Komarov on Soyuz-1. In general, the discussion on "the reliability of records" is considered pointless - excuse me.

there were jet helicopters.

There were. And even already in the Third Reich. Some jet helicopters were subsequently even mass-produced. So what?

[yehat]

Russian Popov and Italian Marconi vie for priority in inventing a really working radio communications - Americans weren’t close there

you are behind the times)))) all Americans know that Marconi and Popov are nobody. Hertz, whose work was completed independently by Marconi and Popov, is also a loser, for he died, and the radio invented
Tesla. By the way, Columbus did not open Aamerica either. It was also discovered by American citizens and it is difficult to disagree with this.
study American history, you will find many interesting things there! For example, the fate of the Kursk Bulge was decided by Patton near El Alamein, and without it the Russians and the Germans themselves could not figure it out. And if you carefully read it, you can find out that the Sun does not revolve around the earth (as Copernicus discovered), it revolves around the United States.

[Dr.KonradMorgen]

Columbus did not really discover America - it was discovered by the Norwegian Vikings half a century before it.
And I prefer to study the history of the Battle of Kursk (as well as the battles of El Alamein) from more reliable sources than American ones. And I know that in both cases somehow - surprisingly to everyone - dispensed with Patton's talents ...

[xtur]

> Norwegian Vikings discovered it half a thousand years before


and before them the Egyptians and Phoenicians swam there, according to T. Heherdal ...

[Dr.KonradMorgen]

Heyerdahl proved only - that they РјРѕРіР »Ryo to swim. But did they really swim? - the question is still open ...

[xtur]

> But did you really swim?

firstly, you obviously did not read his books, where he directly speaks of the arguments in favor of European visits to America.
secondly, I did not just say that T. Kheerdala has such an opinion.

And thirdly - well, the generation has gone, you won’t put a smiley on it and they are already beginning to seriously discuss the joke. You were joking, but I continued, something like that. But emoticons were reluctant to set

[Dr.KonradMorgen]

Why didn't you "read" ?? "Travel to" Kon-Tiki "," Aku-Aku "," Expedition "Tigris" ... Heyerdahl's arguments are interesting, but very controversial - he is too "diffusionist" (IMHO). In addition - I have read the best survey work on the topic of pre-Columbian contacts across the Atlantic with America, published so far in Russian - "Pre-Columbian voyages to America" ​​by Professor Gulyaev.
And what did you joke about the Egyptians and Phoenicians - I really did not understand.

[xtur]

> Heyerdahl's arguments are interesting, but very controversial - he is too "diffusionist"

but I didn’t say that they were indisputable. But serious

> "Pre-Columbian voyages to America" ​​by Professor Gulyaev.

if I meet somewhere - read, thanks

[NEXUS]

Quote: The same LYOKHA

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers will be able to disperse the helicopter to 700 km.

But perhaps the most interesting is the Ka-90, in which a completely new technical scheme was implemented. Takeoff takes place in this way: the helicopter rises with the help of rigid and shortened propellers. It picks up speed in 400 km / h, then the turbojet engine is turned on, which accelerates the car to 800 km / h.

Most likely there will be turbojet engines that will accelerate the helicopter to such speeds. In the figure, a helicopter as close as possible in shape to the plane. Therefore, I think, the main idea of ​​this project is to create an airplane-type helicopter. Perhaps with folding wings, as in the KA-90 project.

[yehat]

reminiscent of a century ago, a book about a cannon that fired a shell to the moon.

[goose]

Quote: The same LYOKHA

Modern helicopters now fly at a speed of 300km with a maximum of 400km

One serial military helicopter stepped over the mark of 400 km / h 50 years ago.

[Locksmith]

Quote: The same LYOKHA

miracles and only.

This is the reason and sober calculation.
1) We need a coaxial circuit, because of the features of the cyclic step
2) short and stiff blades — now this is not a problem. Short so that at normal speeds, at a nominal flight speed, the ends of the blades do not reach supersonic, this is not necessary
3) The rotor is slender, this guarantees a reduced midship resistance on test specimens, and in connection with short blades, it is also in terms of wave resistance, because they are living blades spit up ...

[EnGenius]

"News" was leaked from English-language posts on social networks, it was there that the speed was indicated at 470-something in mph. Most likely this is the speed in KM / H. And in the internal presentation, it is unlikely that the speed was indicated in other units of measurement. Therefore, the speed will simply approach 500 km / h, which is already a very good indicator.

[210ox]

There were like computer images of the MIG41 interceptor ... Is this from that opera or not?

[Olfred]

Will wait! I hope this project is not limited to sketches.

[ANCIENT]

interesting, but the Kamovtsi themselves even know that they are creating such a helicopter, or they have not read foreign media yet

[Locksmith]

Quote: ANCIENT

interesting, but the Kamovtsi themselves even know that they are creating such a helicopter, or they have not read foreign media yet

This is all known for a long time, now there is a real opportunity = now they have rushed forward.
There was a carbon fiber with a limit of more than 7500, there was a heat-resistant resin-binder with heat resistance up to 500 degrees. Those who have access to the materials are immediately activated, but there is also a need to be able to count, so ours are not discouraged , they were always able to count and counted that on fiber 4500 it is possible to grow , mastered this resin ..

[rotmistr60]

The only thing that can be said is - this is YES! May God grant that it be embodied in reality.

[210ox]

Gennady It’s good that such a project would be. Just pay attention to the image .. Designers sit, the speaker stands and does not cast a shadow on the screen of a working projector ...

[LSA57]

Quote: 210ox

Designers sit, the speaker stands and does not cast a shadow on the screen of a working projector ...

Yes, like the 21st century in the yard. which projector? filmed on your film? sometimes the weather forecast, for example, see. there, too, the leading shadow does not cast

[210ox]

Yes, the 21st century also has projectors connected to the computer. And everywhere. In educational institutions, offices .. Similar in this meeting. Some kind of photoshop.

[Piramidon]

Quote: 210ox

Yes, the 21st century also has projectors connected to the computer. And everywhere. In educational institutions, offices .. Similar in this meeting. Some kind of photoshop.

Have you ever seen the translucent screens that are projected from the back?

[LSA57]

Quote: 210ox

And everywhere. In educational institutions, offices ..

but nothing that such a company can afford a screen like a TV and connected to a computer

[hrych]

Quote: 210ox

the speaker stands and does not cast a shadow

Nosferatu?

[abc_alex]

Modern projectors are not located in front of the screen, but above it. Indeed, there is no shadow from them on the screen. And there are also systems with projection from behind the screen.

[universe1]

Of course, we do not see two jet engines and begin to talk about all kinds of impossibilities.

[Same lech]

Of course, we do not see two jet engines and begin to talk about all kinds of impossibilities.

See ... see ... two jet engines pushing + an engine of coaxial screws ... if there will be too many engines for such a machine.

[universe1]

There are only two universal ones. It looks like an F 35 device with its propeller shaft for vertical takeoff.

[Piramidon]

Quote: The same LYOKHA

two jet engines pushing + an engine of coaxial screws ... if there will be too many engines for such a machine.

Why a third engine? Two engines and the drive screws through the power take-off, and the creation of jet thrust enough.

[bessmertniy]

It is somehow incomprehensible - why we learn about the concept of our new helicopter from the American media. I wonder who pocketed the information fee for the Americans?

[Sars]

Not enough tracks and periscope.

[LSA57]

Quote: SarS

Not enough tracks and periscope.

[jonht]

As an option, take-off by helicopter with climb and transition to turboprop engines, with the drive turned off by the propellers and then flying like a gyroplane. For this, they placed engines differently on it.

[Zaurbek]

Turbojet will drive screws through? And create traction?

[Pilyulkin]

The photo shows that they were made from a meeting of a small group (20 people). The place of the "photographer" is easy to identify. The question arises - for what purpose did you lease the information to inosmi? Then we are surprised ...

[True]

Quote: Pilyulkin

The question arises - for what purpose has the information been leaked to the media? Then we are surprised ...

This is for internal use. Nobody will buy this hat there. Yes, and here the people can.

[loginovich]

Elon Musk smokes nervously.

[True]

I don’t understand, but what does this picture not move? Even the cartoon could not be done, they are renting it.

[sabotage]

Whose son did he draw? They also gave him grandmas for this.

And after all, someone smartly carries this nonsense, and someone is amazed at the need to participate in this circus.

[san4es]

... This guy over there, invents all kinds of looks ... Directly On-Line ...

[Bull Terrier]

If possible, it will be interesting to see. But the project is still a project. Not always the output is what happened at the very beginning. And leaked for the simple - reaction. Everyone will begin to pull out their prospects. You need to know who goes where. Stupidly marketing and all.

[Dimon grin]

Probably fuel-free?

[universe1]

Pedal drive.

[Altona]

Or it is a "fighter" with helicopter propellers or a helicopter with "fighter" wings and engines. So far, it looks like a terrible designer hangover. The wings will interfere with the propellers, the propellers will create drag in the "fighter" flight mode.

[Zaurbek]

And the wings sweep like the MiG-21

[Altona]

Quote: Zaurbek

And the wings sweep like the MiG-21

---------------------
The area is quite large.

[baudolino]

Now the Pentagon will have to ask Congress for money to create an American counterpart. And no less than the F-35, I think. A credible provocation.

[Altona]

Quote: baudolino

Now the Pentagon will have to ask Congress for money to create an American counterpart. And no less than the F-35, I think. A credible provocation.

------------------
They already have "Ospreys" of the second generation, they will not be engaged in such garbage. And in general, helicopter bread will probably go to drones.

[Zaurbek]

They published the same pictures with Apache and the propeller behind ...
http://forum.militaryparitet.com/viewto … 91#p281491

[Altona]

Quote: Zaurbek

They published the same pictures with Apache and the propeller behind ...

-----------------------------
When we see it in the hardware, then we will discuss it. And discussing pictures is still about nothing.

[military pensioner]

As the classic used to say "Fresh food, but gray_with difficulty" ...
In the Soviet Union, at first they did it, then they put it into series, and only then they boasted about "there is something"!
And in the Russian Federation, as always, we are creating something that has no analogue in the world.
And then we declare, as with PAK-FA, Armata, etc. - "there is no money, but hold on" ...

[Altona]

Quote: military pensioner

And in the Russian Federation, as always, we are creating something that has no analogue in the world.
And then we declare, as with PAK-FA, Armata, etc. - "there is no money, but hold on" ...

------------------------
I agree with you completely. The same notorious INF Treaty. At first, they stunned the "partners" with Pioneer missiles with powerful warheads to heartburn and vomiting, and then they began to negotiate. And Putin is like an ordinary capitalist pontorez, still a chicken in the nest, an egg in the goose, and he is already cutting a show-off, but we will answer symmetrically.

[Lunic]

... because the Union must have overtaken from the fictitious drawn SOI ... While the Americans sculpted the pictures and did cartoons, the Union sculpted rockets and tanks in the iron ... at the expense of our entire Soviet people. Putin, your president, is doing the right thing in my opinion. Tricks and little money makes the West spend billions to repel an imaginary threat. And the most interesting: I have never heard threats from Russia that it will attack. Why then are most European countries afraid of the Russian threat?

[bratchanin3]

If the propeller blades fold, then it makes sense in the wings and such speed is possible, and if they do not fold, then this is bullshit.

[Galleon]

I am not an expert in aircraft, but this bike has a slightly larger wing, and the screws are no longer needed, if there is a hell ...

[Romanenko]

A beautiful car should turn out to see it in flight.

[Slavs]

And why commentators do not work in our KB ?? For a long time, they would have surpassed everyone ... Even they themselves, without drawing a drawing, handpicked everything and everyone ... You are fading, guys ...

[Altona]

Quote: Slavs

And why commentators do not work in our KB ?? For a long time, they would have surpassed everyone ... Even they themselves, without drawing a drawing, handpicked everything and everyone ... You are fading, guys ...

--------------------------
In the Compass, do you suggest throwing?

[Avior]

a helicopter cannot fly at this speed, in principle, the propellers lose their lift.
if there are jet engines, then this is not a helicopter.
and, frankly, it looks like a picture "give me money, we will compose this!"

[san4es]

Photos of a promising super-helicopter from Kamov have appeared on the web.

In 1972, Sikorsky designed a helicopter known under the designation S-69 ABC, implemented the concept of a new efficient rotor capable of providing vertical lift and cruising speed, typical of normal aircraft, but without the use of wings. So the coaxial rotor creates sufficient lifting force and provides controllability in any flight mode. The rotor of this convertible apparatus consists of two screws rotating in opposite directions and driven by a single gas turbine engine. Two turbojet engines mounted on the sides of the fuselage develop thrust sufficient for horizontal flight at a speed of 560 km / h.

The S-72 was a research platform for testing various carrier systems of advanced high-speed helicopters. With a pair of gas turbine engines to drive the rotor and tail rotor, the S-72 was more of an airplane than a traditional helicopter. A developed wing with a span of 13.74 m., Cruise turbojet engines with a thrust of 4207 kg, plumage - all this made it possible to take off and land even without a rotor. The project, supported by NASA, started in early 1979, the first flight of the S-72 was made on December 2, 1984. First of all, it was planned to test the X-shaped wing (this was not the first time that the scheme was considered as promising). But having made only four flights (only two were with a "rotor") the program was closed.
http://aviadrive.ru/posts/163/

[Same lech]

The car looks beautiful ... the appearance is swift ... than it reminds a shark.

[Altona]

Quote: san4es

Two turbojet engines mounted on the sides of the fuselage develop thrust sufficient for horizontal flight at a speed of 560 km / h.

----------------------
In reality, only 460 km / h has been achieved. In general, 400 km / h plus 100 is probably the ceiling so far for such cars.

[Waldemar]

Sikorsky did not come up with a coaxial scheme

[san4es]

Quote: Valdemar

coaxial circuit not sikorsky invented

In 1972, Sikorsky designed helicopter known as S-69 ABC

... "Design a helicopter" and "come up with a scheme" are different concepts.

[sdc_alex]

Quote: san4es

Photos of a promising super-helicopter from Kamov have appeared on the web.

And what's the problem?

Is the helicopter project promising? - no doubt !!!
Is Kamov developing? - "Kamov" !!!

Next, for some reason, you attach Sikorsky photos. For what?
Sikorsky well done, but this does not negate the fact that the Kamavtsy need to work.

PySy: no where in the article does it say that the Kamovtsy invented the wunderwaffe and "now a scribe will come to everyone" ...

[san4es]

Quote: sdc_alex

...And what's the problem?.

... no problem.

... for some reason you attach Sikorsky photos.

... The same concept:

Two turbojet engines mounted on the sides of the fuselage develop traction,

...For what?

... for comparison.

PySy: no where in the article does it say that the Kamovtsy invented the wunderwaffe and "now a scribe will come to everyone" ...

... Note - I did not write it.

[777-3-59-97]

Why only pictures? Where are the cartoons?

[Thundera10]

They haven’t given money for cartoons yet :))) Although ... even in the cartoon it won’t fly.

[Pacifist]

It remains to find out which paskuda did and leaked photos from the closed meeting. 15 years of strict regime will be a wonderful and well-deserved reward for the "hero".

[Waldemar]

make at least a prototype for the parades. stop showing drawings

[Dr.KonradMorgen]

It looks like the work of "photoshop troops". Otherwise - misunderstandings arise ...

[Detnix]

Kamov Moget !!

[Archivist Vasya]

It is fantastic! As if they took a space fighter and installed screws on it))

[Mentat]

Quote: Vol4ara

Quote: Lycan

Quote: The same LYOKHA

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers can accelerate the helicopter to 700 km. what
I think the news is from the category of ducks.

Whatever the final speed - it’s good that over promising technology - think.

The problem is that it is being built across the ocean

What specific prospective equipment is being built across the ocean, which we are not building, please give a list.

[axiles100682]

By chance, specially, the photos hit the Internet. It's the same as with the "Dagger" and other novelties. Why is this to our xs, but the throwing is definitely not accidental.

[Larum]

Yes, the stuffing is not accidental. But the machine is kind of awkward. It was as if a 3D student eshnik was drawing.
Like, and wings from supersonic, and larger engines, and stealth, and 2nd keels are ....
And all together .... housewives should like it!

[yehat]

interestingly, but is there somewhere a summary analysis of the potential of copter circuits from gyroplanes and classic helicopters to coaxial circuits and convertiplanes in terms of carrying capacity, speed, average fuel consumption, ease of operation and safety?

for example, American ospreys fall regularly - they are too unstable in take-off and landing mode and the engine sometimes burns. Other turntables also periodically suffer from something. For example, in Afghanistan, the Mi-8 had a lack of traction at altitude.
Mi-2s periodically fight at performances - aerobatic errors do not always forgive.

[srha]

Firstly, it is not a helicopter, but a rotorcraft.
Secondly, the wings under the main rotor - this is like the skids under the car - clearly the creation is not an engineer.
And in general, a helicopter circuit for speeds above 400 km / h is not optimal, since even at this speed the ends of the propeller should periodically go into supersonic sound - and there oh, what are the costs of strength (weight), and fuel, and just something a little higher 400 km / h After all, they do not force the airship to overtake airplanes, but why are they attached to helicopters - or are the restrictions there not so obvious?

[serg2108]

another multiprovocation!

[Victoria-V]

Quote: Lycan

Quote: The same LYOKHA

For 700 propeller aircraft, km speed is the maximum limit.
It is not clear how these coaxial propellers can accelerate the helicopter to 700 km. what
I think the news is from the category of ducks.

Whatever the final speed - it’s good that over promising technology - think.

richer in thought - the Russian proverb about the pink dreams of a stupid person.

The proverb is indicated in the book "Proverbs of the Russian people" (1853) by V.I. Dahl (section - "Faithful - Visible")

[Whowhy]

It's fake. A large-area wing greatly interferes with the normal operation of a helicopter rotor.