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La-9

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

The Second World War was coming to an end, OKB a S.A. Lavochkin continued to improve their fighters. The last of his La-7 fighter was considered one of the best fighters of the Second World War, but it had a significant drawback - almost all glider, except for the wing spar, made of wood. putrefiable, unsuitable for long-term storage in the open air design is constantly presented with "surprises", is laid up whole units unfit for combat vehicles. There was only one way out - to replace the wood to metal.

Fighter La-9 – video

In addition, the summer 1944 g. passed bench tests of the engine AL-83, which was slightly more powerful AL-82FN. In the same year it was built the aircraft "120", lightweight version of the La-7 with laminar wing, engine AL-83 and two synchronous cannons NS-23c. In widely used designs fighter metal, thus reducing the weight on the 150 kg. Held in January 1945 g. test aircraft "120" shown excellent data, but due to engine nedovedennosti AL-83 (during the tests the engines were replaced by five) test stopped. Direct development was the plane "126" with the engine AL-82FN and four synchronous cannons NS-23c. On this machine finally worked wing with laminar profiles.

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

Factory testing lasted from late 1945 g. April next year. In "126" was not built, but it was the predecessor of all-metal fighter "130", it is often called the "all-metal La 7". The first copy of "130" fighter built in January 1946 g. the plant №21, was producing La 7. factory tests, during which committed 30 flight, It ended in May 1946 g. In June, the machine presented on the state tests in the Air Force Institute. The first flights have revealed serious defects, associated with resistance, handling the fighter and his arms. A month later, the car returned to the bureau to finalize, It took almost two weeks. Then passed the test ended with a positive result. Research Institute of the Air Force was engaged not only tests, but the fine-tuning of the machine. In particular, improved the management system, bringing to load rules on the control handle. NII VVS did the, that was not on the bureau powers. simultaneously, recommendations on GP. Svishcheva, sharpened tip Profile of center, which improved the properties of snap aircraft.

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

AT 1946 g. aircraft "130" launched into mass production, in the army, he was designated as the La-9. AT 1947 g. first 30 machines La-9 entered the military tests. The plane was constantly improved, only in 1948 g. in its design made 197 change, have improved the quality of the machine. The first modification of the fighter La-9 was the Utila-9 training aircraft. Following the flight tests it was put into production in g. Ulan-Ude. According to the flight qualities, Utila-9 stability and control was similar to combat the La-9. On the basis of the La-9 at the end of 1946 g. aircraft La-138 with two ramjet engine WFD-430 was built, which were suspended under the wing. With these engines, the plane had to reach speeds 700 kmh, but at a rate of La-138 never flew. Designers have tried to combine a large piston fighter flight distance at a speed of a jet. Range turned bad, but the speed is not very good. Later aircraft La 9RD was built with two RD-13 PuVRD. PuVRD suspension on the aircraft reduced duration of the flight, worsened maneuverability and takeoff and landing characteristics. In summer 1947 g. air parade in Tushino nine La 9RD swept over the airfield with a deafening roar, that made a strong impression on the audience. By the middle 1951 g. It was in the Air Force 885 La-9 fighters.

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

The performance characteristics of the La-9

– First flight: 1946 year
– Getting Started: 1947 year
– End of operation: 1959 year
– years of production: 1946 — 1949
– units produced: 1 882

The crew of the La-9

– 1 human

The dimensions of the La-9

– Length: 8,6 m
– Height: 3,6 m
– Wingspan: 10 m
– wing area: 18 m²

Weight La-9

– empty weight: 2600 kg
– Mass normal takeoff: 3400 kg
– Maximum takeoff weight: 3700 kg

Engine La-9

– 1 AP Shvetsova ASH-82FN
– Power, hp: 1 x 1850

The speed of the La-9

– Maximum speed at height: 700 (WEP) kmh
– Maximum speed at ground: 640 (WEP) kmh
– Maximum cruising speed: 380 kmh
– Skoropodъёmnost: 24 m / sec

Range La-9 flight

– 1700 km

Practical ceiling La-9

– 11 000 m

Armament La-9

– 4 × 23 NS-23 mm with Gun 75 shells on the barrel

Photo La-9

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 La-9 Dimensions. Engine. The weight. story. Range of flight. Service ceiling

 

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