Planes and-5. Photo. Story. Characteristics.
"A fighter a fifth," or I-5, presented as a fighter polutoraplana Soviet production. Light and maneuverable, it is made of mixed material: wood, metal, cloth. Originally named the aircraft Tu-11 («inner prison"). It is a joint development of D. N. Grigorovich and Polikarpov (1929 year) CDB 39 after V. Menzhinsky "BT-11» in the Butyrskaya prison in Moscow. The task for the creation of the airplane and-5 issued Red Army Air Force, and the control exercised College of the OGPU.
The fighter was designed in the period of 1929 1930 year. From the structural point of view, the aircraft recalls and-6 and was released in three versions. Equipped with the power-plant "Bristol Jupiter VII» made its first flight in April 29 30 years. At the helm sat B. Bucholz.
The second prototype, sometimes referred to as "Klim Voroshilov" soared nevysotnom engine "Jupiter VI». The third prototype installed a high-altitude engine Soviet-made M-15 and 2-M15. It was a continuation of the American base engine Pratt & Whitney R-1690. This aerial vehicle was different from the first two new engine hood, which completely covered all cylinders. First flight - early July 1930 years.
Between August and September of the same year built the first seven fights and setting-5.
Mass production began at the end of a fighter 32 years, due to the fact that the term did not have time to finish building the plant №21, which was initially planned to expand production. According to experts, the engine M-22 was more beneficial for the machine, so the M-15 decided not installed on production models. M-22 480 had power hp The armament consisted of two synchronized machine guns PV-1 (ammo - 1200 ammunition) and special bomb racks (40 kg bombs). In some instances installed four gun series' first gun "with ammunition on 4 thousand. Cartridges.
The Fighter is a single polutoraplan to the difference between the upper and lower wings (down less than the upper). The chassis is not removed, the C-shaped crutch was a tail wheel. Mixed design of the fuselage - truss. It is welded from steel pipes. The shape is designed in the usual set of stringers and duralumin framework that supported the linen tight. Attached to the bottom of the fuselage frame with two wheels bicycle type (behind the wheel has spokes or a plate with a rubber rim).
Due to the design of the tail crutch and chassis plane could land on solid ground and take off. In winter, the wheels can be replaced with skis, allowing used to sit or take off from a shallow snow cover. Skis are made of wood, are a composite, bonded, free rolling. Dvuhlonzheronnoe wings rack boxes are constructed from drop-shaped duralumin tubes. Plumage duralumin with the web. Wood screw pull, two-blade, fixed-pitch.
Combined lightweight materials helped to reduce aircraft weight and linen lining - good aerodynamic quality of the glider in flight. The terms of the large deficit of aluminum in the Soviet Union, the construction of the aircraft was cheap and easy, and repairs could be carried out in the field, but because of the persistence of this flying machine was reduced.
History and application-5
Fighter polutoraplan used the Air Force of the Soviet Union since the end of the year to mid-1932 1939 years. Small quantity and-5 was used to train pilots.
In 1941, Soviet troops significantly felt the shortage of planes, so some-5 and used as attack aircraft and bombers at night. Also, they replenished the park Red Army Air Force.
Planes and-5 characteristics:
|Wing area, m2||21.00|
|engine's type||1-22 PD M|
|Power, hp||X 1 480|
|Maximum speed km / h||252|
|Cruising speed, km / h||225|
|Practical range, km||660|
|The maximum rate of climb, m / min||535|
|Practical ceiling, m||7500|
|Armament:||Four 7.62-mm machine gun PV-1|
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