OKB "Kamova" will create a "flying laboratory" based on the Ka-52

The Kamov Design Bureau will create a flying laboratory based on the Ka-52 helicopter as part of the project to create a promising high-speed helicopter. About this reports TASS with reference to the Director General of the Central Aerohydrodynamic Institute (TsAGI) them. Zhukovsky Cyril

According to the director of TsAGI, in the OKB Kamov, work will soon begin on creating a flying laboratory of a promising high-speed helicopter (PSV) based on the Ka-52. Work on the creation of PSV are conducted in two directions at once: one is carried out on the basis of the existing Mi-brand machines, the second involves the creation of a fundamentally new machine. And engaged in OKB "Kamov".

Earlier it was reported that three projects of a promising high-speed helicopter with a different aerodynamic design scheme will be submitted to the Russian Defense Ministry for consideration. Russian military will be offered: 1. Classic helicopter with one main and one tail rotor. 2. A helicopter with a combined power plant, where, in addition to the rotor, there are additional propellers on the sides of the hull, pulling the helicopter forward. 3. Machine with a twin-screw coaxial design with rigid rotors and an additional pushing screw in the tail.

The total PSV requirement is a maximum speed of more than 400 km / h, cruising speed is from 360 km / h and higher.

Comments

[Alexey-74]

Kamovtsi are harnessing the race to create a high-speed helicopter, and they have their trump cards in this race. Healthy competition is welcome, if only not another cut of money, but good luck!

[Machito]

In the IVS, the competition was an order of magnitude higher, and for theft they were put to the wall. Result: flag over the Reichstag.

[Genry]

Quote: Alexey-74

just not just another cut of money,

Describe the turn of the previous ones, please.

[NEXUS]

Quote: Alexey-74

Kamovtsi harnessed the race to create a high-speed helicopter,

A few years ago, work began, and not now. At Milevtsev MI X-1, at Kamovtsev KA-92.

The first project, the Ka-92, is based on a combination of coaxial rotors and a pusher, located in the tail of the aircraft. According to the developer, the helicopter will have a cruising speed of 420-430 kilometers per hour and a maximum speed of 500 km / h. Ka-92 will be able to fly 1400 kilometers without refueling. On prototypes, it is planned to use two serial VK-2500 turboshaft engines with their subsequent replacement with promising VK-3000 with improved characteristics.

[Flyer_64]

Quote: NEXUS

A few years ago, work began, and not now. Milevtsev MI X-1, Kamovtsev KA-92

These are all beautiful pictures and computer models. So far, the real result is blades for Mi-24/35/28 helicopters with a new high-speed profile, as a result, the increase in maximum speed to 400 km / h and cruising to 300-320 km / h. The task of Kamovites is to minimize rotors as safely and minimally as possible and to develop new HB bushes no longer with articulated blades. Only in this case there will be a breakthrough.

[NEXUS]

Quote: Letun_64

Only in this case there will be a breakthrough.

I think that the hybrid design will be more breakthrough when it takes off like a helicopter, and then, folding wings it flies like an airplane. There are different speeds and speeds, although this is not a tiltrotor.

[Flyer_64]

Quote: NEXUS

folding

Of course, a hybrid circuit is good. Ka-22 is an example, but a very complex control system. Folding in flight or fixing the HB is generally fantastic. On the Ka-31, when the radar rotates, the speed walks plus or minus 60 km / h. And here the blades add up, loss of speed can lead to loss of controllability. I think before us Germans and French will find a breakthrough project using fan motors instead of HB.

[Zaurbek]

1. A classic helicopter with one rotor and one tail rotor. 2. A helicopter with a combined power plant, where in addition to the main rotor, additional propellers are installed on the sides of the body, pulling the helicopter forward. 3. A machine with a twin-screw coaxial design with rigid rotors and an additional pushing screw in the tail.

This, of course, is commendable .... but where does the money and technology come from?
These are two American programs and one European. The road will be overpowered by a walker; technology does not appear from nowhere.

[stalki]

You can copy and convert everything, another question is who will do it, the Soviet potential ends, where are the brilliant designers?

[Zaurbek]

It’s even hard to copy here ... helicopter engineering is a difficult industry. Are there any materials ... and technology ?!

[Krasnoyarsk]

Quote: Zaurbek

This, of course, is commendable .... but where does the money and technology come from?

Money from the nightstand if you did not know. And technology is being developed along with the creation of the aircraft.

[Zaurbek]

There is no other way .... even if you are late, you need to do this.

[abc_alex]

Quote: Zaurbek

This, of course, is commendable .... but where does the money and technology come from?
These are two American programs and one European. The road will be overpowered by a walker; technology does not appear from nowhere.

These are not American and European programs; do not distort realities and history. This is the path of development that was defined back in the 60s. In the USSR, a scheme with an additional pushing screw was called a rotorcraft. in 1960, the experimental Ka-22 was built, on which 1961 world records were set in 8, including straight line speeds of 356 km / h and a load of 16 kg to a height of 485 m.

Today, nothing has fundamentally changed in this scheme. The main rotor provides lifting force, the additional rotor provides horizontal speed.

At the same time, KB Kamov has an undeniable advantage over European manufacturers - the coaxial scheme is much better suited for installing an additional engine than the classic one. This was realized even in the USA, the high-speed car of "Sikorsky" is also realized according to the coaxial scheme.

What technologies are you missing? The main rotor circuit of such a helicopter is much simpler.

[Zaurbek]

The main difficulty is the gearbox and automation - the old circuits had separate mechanisms ...

[abc_alex]

Well look. The rotor of the coaxial circuit with the pusher is devoid of the swashplate. It is rigidly fixed and therefore the rotor circuit is simpler. The propeller blades themselves are shorter in length but wider, therefore also simpler.
And what fundamentally differs the drive of the pushing screw from the gearbox of the compensating tail rotor of the classical circuit?

[Zaurbek]

More frontal resistance .. If it were so simple, the United States would not have come such a long way .. Which was not in the USSR. (It was, but it is small)

[abc_alex]

Great drag what? The pulling (pushing) screw? So they somehow coped with this in piston aircraft, and there the speeds were up to 700 km / h. You specify.

[Zaurbek]

core screws

[abc_alex]

The rotors are made short and wide. Tapering from root to tip. This allows you to reduce the speed of movement of the final section of the screw. This reduces the resistance to free flow.

[Flyer_64]

Quote: abc_alex

Tapering from root to tip.

You know which blades in the plan stood on the Mi-4 - trapezoidal. Trapezoidal blades are close to optimal in terms of aerodynamics (most similar to an elliptical shape), have less inductive and profile losses.

[Flyer_64]

Quote: Zaurbek

Main difficulty

The main difficulty is the supporting system. The most difficult is the aerodynamics of the HB.

[Zaurbek]

Yes, and the preservation of engines. Extra engines, extra weight. X-2 in this regard is the standard.

[Wened]

Kamov Design Bureau will create a flying laboratory on the basis of the Ka-52 helicopter as part of a project to create a promising high-speed helicopter.

One of the most significant news.
Since this is the only helicopter in the world with a catapult for pilots, and probably if the coaxial propellers did not create so much noise, then Russia would have long been out of a single rotor circuit.