The Su-2. A photo. History. Characteristics.
The Su-2, or as it is called, BB-1, a light bomber, which was widely used during the Second World War. This machine had significant differences from the machines of similar design at that time. The Su-2 has a larger review of a pilot's seat that allows him to use the machine more efficiently and skillfully. Due to the review of this unit is often used as a spotter for our artillery. The innovation was the idea of Chief Designer P. Dry on the movement of all the bombs in the middle of the body, which would increase the speed of the machine. In developing the designers planned to produce a machine entirely of metal. Unfortunately, it was impossible to carry out, since the metal was little.
History of the bomber Su-2
By developing new high-speed attack aircraft that was to fly long distances, began the winter 1936 years. The machine was in documents entitled "Smith". In 37 year to this project started PO Sukhoi, which has made some changes. Major changes have affected the power plant, as the designer has equipped this unit more reliable air-cooled engines of the M-62.
With regard to the time that was spent on the design and manufacture, it was very short. The first prototype was ready in six months after the start of project development. The first prototype of the Su-2 was lifted into the air in the summer of 1937 years. Ample time was spent on the completion of the engine, which is constantly breaking down. It is because of this engine the car is not admitted to the state tests.
After completions aircraft was tested in 1938 year and entered the factory to replace the engine. But the new engine of the same type on the second flight has failed, and the car crashed. After this incident, Su-2 started to equip a new, more reliable engines of the M-87. The new power plant has achieved high flying performance and pass state tests in 1939 year. The military were interested in this machine and decided about its mass production in Kharkiv and was appointed chief designer Pavel Sukhoi.
The first machines were like iron and wood elements in the design, as the metal lacked. Last machines equipped with more sophisticated engines. Production of these aircraft went very ambitious pace, since 1940 on 42 years 910 was released more units of this aircraft.
In addition, throughout the entire production time designers are constantly working on improvement and modernization of the machine. During WWII aircraft Su-2 widely used in military operations, and proved to be a quality fighting machine. 27 pilots who operate this unit, was awarded the highest award - the title of Hero of the Soviet Union.
Design features of the Su-2
The plane is made by the scheme cantilever glider with one motor. The body is made of metal and plywood, which saves the metal and facilitate the overall weight of the structure. The cockpit was closed fairing, which is equipped with a lantern. The fairing is made of Plexiglas, it provides an excellent overview of the pilots. Aircraft operated by two pilots, which are housed in two cabins with heating.
The wings are made of duralumin. Each wing is equipped with fuel tanks that can be serviced by a hatch in the wing. Keel plane is made of duralumin, like steering wing. The machine is paired, it allows you to operate the machine to each pilot. Chassis in Su-2 was cleaned in the internal recess by the actuator. The chassis of the aircraft consists of three poles.
Power plant machinery is presented 14-cylinder engine model M-88, which is air-cooled. Engine power is 950 horsepower. The motor drives a three-bladed propeller, which has a diameter 3,35 meter.
As regards the hood, which covers the engine, it consists of two parts and is equipped with a skirt. The right side of the hood has an opening for the exhaust pipe. Top panel is the hood, which can be used to reach the fuel tank, located in the fuselage of the machine.
As for weapons, the aircraft has three machine guns 7,62 mm, one of which controls the second pilot. Some versions of the Su-2 machines were at the bottom of the hatch, which was located in the cabin of the navigator. With it, you can protect the bottom of the unit. As for the bomb that the plane was carrying, they were placed in the bomb bay and external bomb racks. The means of communication such as radio pilots was "Dvina", which was located in the cabin of the second pilot.
|Wing area, m2||29.00|
|engine's type||PD Shvetsov M 1-82|
|Power, hp||X 1 1330|
|Maximum speed km / hnear the ground||430|
|Maximum speed km / hon high||486|
|Cruising speed, km / h||459|
|Practical range, km||910|
|The maximum rate of climb, m / min||588|
|Practical ceiling, m||8400|
|Armament:||Six 7.62-mm machine guns ShKAS (650 rounds on the barrel)|
|10-82 Nursi PC or PC-132 and / or 400 kg bombs|
- Aviation and literature
- A uniform
- Military aviation
- Civil Aviation
- Helpful information
- The calendar
- Aviation and music
- game air
- Plane Crash
- Aviation and cinema
- Educational establishments
- Author's articles
- Assemblies and units of air equipment
- The probability of catastrophes
- Online Timetable
- The calculation of the distance
Best in the world of aviation