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Yak-15
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Yak-15

Yakovlev Yak-15

 

Soviet designers was created fighter jet Yak-15 40-in the middle of the last century. This machine has been designed on the basis of pre-existing Yak-3. For the first time this machine has made the gap between the runway summer 46 years. The Yak-15 was manufactured for two years from the 46 47 of the year, during which time it was released 280 machines. This fighter is a transition from the standard machine screw machines to the new jet. That is why it was used as a study.

History of the creation and operation of the Yak-15

Production of the aircraft was launched by order of Stalin, which said the establishment of 15 devices of this type, which were to take part in the autumn parade. Therefore, these early machines did not have weapons on board.

Yak-15

Production aircraft carried out an aircraft factory in the city of Tbilisi, which had performed the previous machine Yakovlev. The first batch was made fairly quickly and easily, because a lot of parts of the aircraft were similarly. But first off the plane took place in the town of Zhukovsky, as the Tbilisi airport could not prevent the landing and take-off of the machine in this class. After the factory test car started to test the state commission.

Despite the fact that the state tests have not yet been finished, it is a new regulation, which was given the task of manufacturing more 50 devices of this class, and 25 of them should be made in a double version. But in reality, neither double machine Yak-15 has not been made, because it was not of avionics. Instead, they produced a standard aircraft.

Yak-15

Since the beginning of the year 47 these machines were transferred to the Soviet Air Force and used for training purposes, the data training held on the runway of the Diet. After passing the training of pilots and machines Yak-15 participated in the parade, which was held in Moscow on May 1, in Red Square. It was involved 50 class machines Yak-15. Despite all this, the machine had flaws that needed to be addressed. Production aircraft of this design was the biggest political step, which was to confirm the combat power of the Union. Policy before the whole world wanted to show that the war has not weakened the Soviet Union, but rather on the contrary, it intensified their all.

Features of the aircraft structure

Powerplant Yak-15 represented by a single jet engine type YuMO-004. He provided the aircraft thrust 900 kgs. As for housing, it is virtually identical to the body Yak-3. In appearance, the machine can be concluded that the designers took the Yak-3 and equipped it with a jet engine without much significant improvements.

Yak-15

Farm hull was made of steel tubes, which are attached to the lining duralumin. The bow of the farm had a special attachment, which was installed engine. The bottom of the machine body was made of special heat-resistant metal. Plumage in the Yak-15 full plumage similar to the Yak-3, it was changed only the keel machines, namely designers increased its area. Fighter wings were composed of two spars, and the center of the arch was installed, which covers power plant. The wing was also clad in metal and equipped with ailerons and flaps.

Yak-15

Fuel system unit was represented by four tanks. Two of them were installed in the wings, another - in the nose compartment, and a fourth has been installed directly on the engine of the machine. Regarding electrical new fighter, it was carried out exactly as in the previous plane. This machine had planned to equip two large-caliber guns such as NS-23K who would like to install the engine on the machine.

Yak-15 characteristics:



Modification Yak-15
Wingspan, m 9.20
Length m 8.70
Height, m 2.27
Wing area, m2 14.85
Weight:  
null 1852
takeoff weight 2742
engine's type 1-10 TRD RD
Thrust, kgf X 1 900
Maximum speed km / h  
near the ground 700
on high 786
Cruising speed, km / h 689
Practical range, km 510
Ceiling, m 13350
Crew 1
Armament: One 23-mm gun (60 shells).

 

Yak-15 video

 

Aircraft

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After reviewing the progress of the Germans in the field of jet technology, the leadership of the Soviet Union is strongly requested, or rather demanded their aviation specialists to address this serious subjects as possible. Domestic designers have long had their own ideas as well as that obtained captured samples and documents proved very useful.
Grasp the creation of the first sample jet, AS Yakovlev took as a basis for well-known combat pilot of the Yak-3. Thus, the designer decided two problems at the same time - to overcome the natural habit of flight and maintenance staff to the new car, as well as reducing the cost of developing and fine-tuning the layout scheme. Already in the first flights it became apparent prospect of Yak-15 - the rate increased by almost 100 km / h. But a lot of shortcomings were identified. One of the main problems was the short range - less than 500 km. In addition, the jet stream from the engine destroyed the runway, and the small red-hot parts of the fuselage bottom cover damaged. However, because the new aircraft was similar in the management of a Yak-3, he was accepted as a transitional variant of the piston to jet aircraft equipment, and Yak-15 shared with MiG-9 glory of the first Soviet fighter aircraft equipped with turbojet engine.

This machine can rightly be considered a transition from the old screw machines to the new jet. Due to the fact that it is based on the Yak-3 he has good flying qualities, but as noted in the literature, it was not a spectacular device. According to the first pancake is always lumpy. But he is perfectly able to realize himself as an aircraft for training pilots.

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