History fighter LaGG-3 began in the late 1938 g. Two employees of the General Aviation Industry Management (GUAP) VP. Gorbunov SA. Lavochkin decided to come up with a proposal for the construction of his fighter. On the way to the MM. Kaganovich (while the aviation industry of the USSR People's Commissar) they met MI. Gudkov, as SUSI employee. taking his, they were in the office. VP. Gorbunov reported on the draft MM. Kaganovich and showed a new material - delta-wood, of what they would like to make a fighter. project like Kaganovich, and they were allowed to start work.
Fighter lagg-3 – video
A careful study of new material has led to the conclusion about the possibility of using it in the manufacture of fighter. Soon design bureau was established in Kunaeva - OKB-301. In March 1939 g. in terms of experimental aircraft SUAE issued a decree, prescribing SZHB-301 design and build a fighter engine M-105. Originally it was planned to make a fighter pilot of the new material, but soon issued a decree "On carrying out of measures to introduce a series of new and upgraded fighter jets and the construction of new advanced types". After this document the construction of two fighters I-301-105TK2 motors M and M-106P.
In September 1939 g. fighter aircraft mock-up was built, and the Air Force Institute passed preliminary design. Then presented a second revised draft project, which was approved by the Air Force Research Institute. Even during the construction of the first machines SA. Lavochkin put in charge of the designer on flight tests. The first plane I-301 with the engine M-105, but without compressor TC-2, built in the spring 1940 g. First flight 10 April performed the test pilot NII VVS AI. Nikašin. Then the aircraft was transferred to the state tests, which took place very quickly, just six days. After the improvements identified in the state tests deficiencies I-301 again continued production tests. At the end of the year for testing was a second instance of I-301 with two turbochargers. By this time, it began preparation for mass vvgpusku fighter at several plants. State tests had carried out already at the serial car plant №21.
9 December 1940 city, in accordance with the government decree, Plane-301 renamed lagg-1, and its improved version, long range - in the LaGG-3. The first production aircraft flew on 23 January 1941 g. Serial production of fighter held in harsh conditions, It lacked many components, and so a variety of series machines were significantly different from each other. solid wood construction, increase the power of weapons and increased fuel worsened fighter flight data (skoropodъemnost, vertical maneuver, takeoff and landing characteristics). construction quality production vehicles was significantly lower, experienced than, which was reflected in increasing resistance and weight gain. The designers did their best, to save his fighter flight data. But all the shortcomings to overcome was impossible, for your motor LaGG-3 remained too heavy. Abbreviation "LaGG" pilots stands for "guaranteed lacquered coffin".
Armament production vehicles also changed. At the earliest before the war it consisted of five machine guns: three large-caliber rapid-two, but soon, instead of the main gun began to put the gun ShVAK. Besides, under the wing could be suspended 6-8 RS-82 or two bombs. Such weapons have not been on any new serial destroyer of our country. AT 1943 g. the troops appeared LaGG-3 with a gun NS-37. Despite some shortcomings, fighter LaGG-3 was actively involved in World War II and contributed to the destruction of the enemy. All were released 6528 aircraft LaGG-3.
Performance characteristics lagg-3
– chief designer: AT. P. Gorbunov
– First flight: 28 Martha 1940 of the year (I-301)
– years of production: 1941 — 1944
– units produced: 6528
Lagg-3 crew
– 1 pilot
Dimensions LaGG-3
– Length, m: 8.81
– Height, m: 4.40
– Wingspan, m: 9.80
– wing area, m²: 17.62
Weight lagg-3
– empty weight, kg: 2480
– Mass normal takeoff, kg: 2990
– fuel capacity, kg: 340
Engine lagg-3
– engine's type:: M-105PF
– Power, l. from., nominal: 1180
Speed-3 lagg
– Maximum speed at ground, kmh: 542
– Maximum speed at height, kmh: 580
– The maximum rate of climb, m / min: 893
Flight range LaGG-3
– 650 km
Practical ceiling LaGG-3
– 9800 m
Arming lagg-3
Until the 4th series inclusive production consisted of 12.7-mm machine gun BS, firing through screw gear, two synchronized guns and two BS synchronized caliber guns SHBAK 7,62 mm. On airplanes with 4 th to 8 th (11-Yu ?) series was ShVAK caliber gun 20 mm, one gun synchronized BSs and two ShKACa. on airplanes, starting with the 12th production series armament was reduced to one gun and one VAK BS machine gun. Sometimes, instead of ShVAK gun gun put QI-23 caliber 23 mm.Ispolzovalis several types of ammunition, including armor-piercing incendiary bullets B-32 (caliber 7,62 and 12,7 mm), armor-piercing incendiary trassiruyuschis ST-46 (7,62 mm), armor-piercing incendiary trassiruyuschis BZT (12,7 and 37 mm), incendiary O3 (20 and 23 mm).
Under the wings fastened eight guide PO 82 rockets RS-82, RBS-82 (armor) caliber 82 mm (Warhead weight 360 or 480 g), and MCH-locks 40 and brackets 13 DER-suspension two bombs weight 50 or 100 kg each (for example FAB-50ck, FAB-100M). Guidance onboard weapons at the target was carried out with the help of PBP-1a sight.
Photo LaGG-3
