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Tu-444

Tupolev Tu-444

 

For a long time in the Russian engineers from Tupolev Design Bureau work on supersonic aircraft. The initial changes in this area were the Tu-144, Tu-144LL and long-range supersonic Tu-22MZ and Tu-160, intended for fighting. In the production of these devices provides active assistance and TsAGI has long maintained cooperation with KAPO (Kazan Aviation Production Association). It is CAPO is the only in Russia and Europe manufacturer of high-thermal-structural resource.

Tu-444

Since due to environmental restrictions on the creation of large supersonic aircraft project SPS-2 in the near future is unlikely to be realized, it is possible to create a promising small-sized business jets - SBS. This unit is in the Tupolev Tu named-444. Firstly, it should be noted that a significant low cost of designing aircraft in comparison with supersonic airbus. Also reduces environmental requirements.

 

The prospect of the plane lies in the amount of possible future sales. This refers to the export of approximately 500 units SBS. This technique is interested in any state, as virtually 24 hours it can send passengers from one continent to another and back.

 

In designing the shape and type of the Tu-444 influenced by the following factors:

  1. The analysis of the planned flight paths with the greatest passenger traffic, which connects the main centers of 75 the world (within the Tu-444), demonstrate the following:
  • Estimated range flight flight will 7000-7500 km;
  • creation of SBS with a range of 11 000-12 000 km is impractical because of the high cost of construction and the rare cases of a similar distance flight.
  1. Operated by TU and TU-144-160 demonstrate the adequacy of the decision to limit the number of cruise supersonic speed M = 2,0 for constructive resource constraints and high-altitude cruise.
  2. All work carried out by engineers and designers of OKB for Airbus passenger supersonic Tu-244, decided on positive values ​​load on the wings - 320 kg / m2.
  3. Operation famous business jets (CessnaIII, Bae 125, Falcon 900, Gulfstrim II, III, V) showed that, regardless of the maximum spaciousness of the number of passengers may be 3-6 people.
  4. After analyzing the global network of airfield runways, concluded that the feasibility of using the runway, not exceeding the mark 1800 m.

 

The design of the Tu-444

 

This construction will be carried out on a "tailless". Cantilever wing will be located low and have developed root nodules. Vertical single-fin tail will whole-turning.

 

To improve the takeoff and landing characteristics and improve aerodynamic quality, the aircraft is constructed statically unstable in lateral and longitudinal directions using an electro-remote multi-channel control system. The same wing is equipped with adaptively deflected socks and elevons, which hang on takeoff and landing. The tail end of the wing ends with a strong balancing surface. At the moment, the necessity of using a retractable multi-gap front destabilizer created by the type of "Tu-144" is being tested.

 

Designed to enhance the aerodynamic qualities of the adaptive wing socks on flight tests conducted for the prototype, it is not likely to involve. Needless characterized aerodynamic wing steep, variable geometry and complex deformation of the central surface. Relative thickness of the wing tends to vary in scope in gradations from up to 2,5 3,5 percent.

 

All of the wing (naplyvnaya) is an integral multiple units fuel tank. Bays cleaning the main landing gear are located in the main part between the pods.

 

From the military aircraft Tu-160 were completely copied controlled supersonic air intakes with a vertical wedge. They were placed on the inflatable underside of the wing. Turbojet two-loop engines are shifted back from the bottom of the wing caisson. They were turned into a small upper corner, which made it possible to shield the tail of the fuselage and keel, and this in turn led to a reduction in the noise level on the sides during the take-off and climb. To expand the range of flight tests and create a reserve for future prospective programs, it was decided to install engines with forage-type cameras on a prototype.

Tu-444

Regarding the series production agreed at Tu-444 install turbojet engines besforsazhny brand AL-32M by NPO "Saturn". Continuous base for the creation of such a turbofan engine AL-served 31F and promising option chosen AL-41F-1. This engine meets all the basic requirements for aircraft power plant program SBS.

 

From a technological point of view, in addition to the "area rule", the fuselage was divided into three parts: the nose, middle and tail. The airtight nose (pilot cabin) has built-in equipment compartments, cleaning of the additional (bow) chassis rack, kitchen, a wardrobe with a folding built-in ladder, a toilet and passenger compartment compartments for 6-10 people. The middle part, which is also a fuel integrated tank, has a compartment for the air conditioning system in the lower part. The compartments of the hydraulic system, power grids and APU are in the tail section.

 

Since the prototype aircraft will sooner or later move into a production stage, it should be able development. Thus, the piloting equipment decided to perform navigation of the open structure.

 

As the plane is air car business class, it will be fully complement systems and life support of the crew and passengers. In the event of an emergency on board the installed emergency equipment.

 

The most important for EDB is to provide a universal prototype demonstrator. It is necessary to show the high quality and the benefits of its existence, since it will depend on the number of attracted sponsorship funds and forces.

Tu-444 characteristics:

Cruising speed

  • 2125 km. at one o'clock

The length of the plane

  • 36.00 meters

Aircraft height

  • 6.50 meters

Wingspan

  • 16.20 meters

Range of flight

  • 7500 km.

 

Description of the aircraft:

The supersonic Tu-444 designed for the business aviation sector.

Of small business supersonic Tu-444, calculated on 6-10 people.

The required length of the runway is 1830 meters.

Number of beds:

  • Crew: 2
  • Passengers in Business Class: 10

Weights:

  • Take-off (m): 41.00
  • An unladen (t): 19.30
  • Pay load (t): 1.00

 

Tu-444. Gallery.

Tu-444 1 photoTu-444 2 photoTu-444 3 photo

Tu-444 4 photoTu-444 5 photoTu-444 6 photo

 

Tu-444 video:

 

Aircraft

Comments

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The Tu-444 airplane can rightly be considered a major breakthrough in the aircraft industry of our state. With serial production, I think there will be a lot of excitement for this machine. After all, not every aircraft with a world-wide name can boast of such flying indicators. This unit can really produce very fast passenger traffic between the continents. Of course an interesting issue remains the price of an aircraft of this type. But still he will find his buyer. Since this is a business class then only millionaires will buy the ego. Ordinary mortals are unlikely to fly on this plane. In spite of all this, it is this aircraft that can bring our aircraft industry to a new position in the world market.

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