The Yak-3 is a fighter of Soviet manufacture, which was equipped with a single engine. The development of this machine designer Yakovlev worked with his group of designers who have confirmed their potential in the manufacture of these machines on the Yak-1 model. Before the designers had put task to increase the firepower of the machine and increase its survivability in combat. In order to achieve these indicators, it was necessary to significantly reduce the weight of the machine and increase the capacity of the power plant for the production of higher speed performance.
Brief history of the Yak-3
The initial development of fighter Yakovlev started even before the Second World War, with the result that was made Yak-1 model. This machine had excellent flight and combat characteristics. The basis of the new prototype Yak-3 and taken the basic system and the development of a Yak-1.
Factory investigations were started in the year 43, and the machine has established itself as a great combat unit. She could reach a maximum speed, which exceeded even the plans of designers, namely 680 km / h. By October this year, the aircraft was handed over to the state tests.
The serial production of the new device was made in the autumn of the year 1943, and the first combat vehicle of this class was built in six months. For the first time the aircraft made a flight in March 44 years. Production went accelerated pace and 4848-3 Yak was built in two years.
In the middle of the year 1943 this unit is actively used in combat operations and was appreciated by Russian pilots. He could easily resist the German aircraft and destroy them. The advantage of this device was that it was very easy, as many body parts were made of wood. In addition, he was very quick and agile. The advantage of the machine and was big enough for the time range, which was about 885 km. Superiority was in arms, as the Yak-3 two machine guns were installed, and a large-caliber gun.
Design features of the Yak-3
It should be noted that this car was produced only for two years, but during that time there have been many versions that differed both layout and weaponry.
The Yak-3 was made under the scheme cantilever monoplane, which is equipped with retractable landing gear.
The power plant is represented by twelve-cylinder engine that has an output of 1250 horsepower. Motor drives the three-blade propeller of a new design that step could be changed in flight, the unit designated as VISH-105SV. Truss-type housing was made of steel pipes, which are connected by welding type and the machine cladding was made of duralumin sheets. Besides the metal, a large part of the body was made of wooden structures. Motor-vehicle has been manufactured in one piece with the body of the aircraft. pilot lamp was manufactured in the teardrop shape that increased the streamlined machine. This machine was equipped with an emergency drop.
The wings were composed of two spars, where wood paneling has been installed. The wings were placed between the spars fuel tanks, was also located here, and the service tank. Designers has provided system that prevents leakage of fuel from the tanks in their damage. On the wings of this unit have been installed and the flaps.
The chassis has been represented by three pillars, which were removed during the flight in the fighter's body. On racks telescopic shock absorbers were installed, which effectively quenched fluctuations during landing.
In the cockpit, besides the standard navigation equipment and control systems have been installed radio device and the device collimator sight, oxygen supply system. For night missions lighting was installed in the cockpit, and the outside of the case were sidelights. To reduce the visibility of the vehicle during combat operations all Yak-3 have camouflage coloring, namely the bottom of the car was painted in blue color.
A country:the USSR
A type: single-engine fighter
Crew: One pilot
This is the second aircraft Yakovlev were designated Yak-3 (first with this name was closed in the autumn of the year 1941 because of the low reliability of the engine and the lack of suitable materials for the construction of the aircraft). The aircraft was built to meet the requirements of the Air Force to establish a maneuverable fighter with high performance at low altitudes. Fighter provided by the Soviet Air Force air superiority over the battlefield - like the fact that most of the time the German Air Force had on the Eastern Front.
Use a modified glider Yak-1M equipped with a reduced wing prototypes have been tested from February to October 1943 years, by which time a small pre-production batch of the aircraft was put into production in the State Aviation Plant (GAZ) 286 number in Kamensk-Uralsky. The Yak-3 remained in production until the beginning of the year 1946. By this time it was released 4848 aircraft.
In 1991 year between OKB. Yakovlev and the Museum of Flying in Santa Monica was a contract, which provided for the delivery of several newly built factory in Orenburg Yak-SCT using drawings, tooling, templates and tools during the war, but equipped with "Allison" American motor company - hence the designation of UA. A small amount of double Yak-11 with radial engines also converted into aircraft "Yak-Ellison SCT".
- Length: 8,49 m
- Wingspan: 9,2 m
- Height: 2,42 m
- BLANK: 2105 kg
- Maximum take-off: 2550 kg
Aircraft performance characteristics:
- Maximum speed: 655 km / h
- Range: 900 km
- "Allison» 2L Power: 1240 l. from. (925,04 kW)
Date of first flight:
- February 28 1943 years (source) and July 1993 years (aircraft Yak-SCT)
The surviving airworthy modifications:
- Yak-SCT (newly constructed in OKB. Yakovlev) and "Yak-SCT" (Yak-11 aircraft equipped with engine "Ellison» 2L)
|Wing area, m2||14.85|
|engine's type||1 PD VC-105PF2|
|Power, hp||X 1 1240|
|Maximum speed km / h|
|near the ground||567|
|Practical range, km||648|
|Rate of climb, m / min||1111|
|Practical ceiling, m||10400|
|Armament:||one 20-mm gun ShVAK two 12.7-mm machine gun UBS|
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