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Yak-142
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Yak-142

Yakovlev Yak-142

 

The Yak-142 is a passenger liner, which serves neighbors highway passenger transportation. This machine is a modification of the Yak-42D. From 42-d model of the new device is distinguished by a long body and great fuel economy. This machine is the brainchild of Yakovlev Design Bureau, the first machine has been manufactured at the beginning of the year 1992. In the same year he was presented to the public in Moscow and at exhibitions in Germany and France.

Brief history of the Yak-142

As for the history of the creation, it originates from the design of such an aircraft as the Yak-42, and is directly connected with it, as the new Yak-142 passenger plane is a further improvement of this machine. For the first time for the development of this project Yakovlev Design Bureau took at the beginning of 1987. Three years after this, the MGA set the basic requirements to which the machine was supposed to meet. As it was mentioned earlier, the main mechanisms and elaborations, which were done on the Yak-42D apparatus, were taken into the design of the new liner. But the new machine has many advantages over the previous version. In addition to the elongated fuselage, the aircraft was significantly better in flight and aerodynamic characteristics.

Design features of the Yak-142

The machine is made in the circuit nizkoplan with a cantilever body. The machine was equipped with a T-tail. all-metal fuselage structure. apparatus Wings had a high degree of sweep and scope in 38 meters. Landing gear was represented by three pillars, Bow Front was manageable. Moreover, wheel chassis system were equipped with braking systems.

Yak-142

As for the power plant, it is more powerful, allowing the machine to lift large loads. By plane three engine type turbofan D-36 installed. In the design of aircraft designers have worked several options for the passenger compartment, thereby it could accommodate up to 39 120 seats.

Plan and equipment are:

  • in the tourist version could be placed on the 156 162 to passengers;
  • two-class accommodation provided in the first cabin 12 people, and in the second 126 people;
  • plane with three passenger compartment should be placed in the first cabin 12 people, in the second - 24 man, and the third - 96 passengers.

 

This machine is controlled by only two pilots.

At cruise speed airplane developed in 850 km / h at altitude in 11 kilometers. Range, which could fly as much as possible, this unit was from the 1,6 2,7 to thousands of kilometers, depending on the flight type. There may have been flying and 5 thousand kilometers with a maximum refueling.

Customers of the aircraft models could to choose interior layout and associated equipment. If desired, the customer the aircraft could be equipped with the system such as GPS navigation, or a system that prevents the possibility of a collision with another aircraft. Under the terms of the customer could install other systems or equipment.

Yak-142

The standard on-board equipment consisted of the following devices: a set of a digital navigation complex of the CPNK-42 class, an automatic approach approach system and its implementation. The aircraft was programmed into 70 different routes, on which the device could fly almost independently without much interference from the ship's pilots. Also, a five-mode engine operation system was installed, and their operation was controlled by an automatic system, and all its actions and indicators were displayed on the dashboard in the cockpit. The Yak-142 aircraft solved the problem of longitudinal stability at cruising speeds due to the system of remote control, it was equipped with a four-fold redundancy.

Passenger airliner Yak-142 planned to commercially produce an aircraft factory in the city of Saratov, but due to financial difficulties the production was never started. At the moment, there is only one full-scale working model of the Yak-142, and it belongs to the "Lukoil" company.

Yak-142 characteristics:



Modification Yak-142
Wingspan, m 34.88
Aircraft Length m 38.40
Height, m 9.83
Wing area, m2 150.0
Weight, kg  
an unladen aircraft 38400
normal takeoff 57500
engine's type 3 turbofan Progress (Lotarev) D-36
Thrust, kN X 3 63.74
Maximum speed km / h 800
Cruising speed, km / h 750
Ferry range, km 5000
Practical range, km 2700
Range at maximum load, km 1600
Practical ceiling, m 9600
Crew 2
Payload: passengers in a single-class layout tourist class 156 (810 mm seat pitch), or 162 (step 780 mm), or 180 (750 mm pitch). There are also two-class layout on 138 places (12 + 126) and three-class layout on 132 place (12 + 24 + 96) or maximum payload 18000 kg, normal 14820 kg, with maximum fuel 9600 kg

 

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