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The Lavochkin La-9 (NATO reporting name Fritz) was a Soviet fighter aircraft produced shortly after World War II. It was one of the last piston engined fighters to be produced before the widespread adoption of the jet engine.

La-9
Role Fighter
Manufacturer Lavochkin
First flight 1946
Introduction August 1946
Status Phased out of service
Primary users Soviet Air Force
Romanian Air Force
North Korea Air Force
Produced 1946–1948
Number built 1,559
Variants Lavochkin La-11

Development


La-9 represents a further development of the Lavochkin La-126 prototype. The first prototype, designated La-130 was finished in 1946. Similarity to the famous Lavochkin La-7 was only superficial – the new fighter had an all-metal construction and a laminar flow wing. Weight savings due to elimination of wood from the airframe allowed for greatly improved fuel capacity and four-cannon armament. Mock combat demonstrated that the La-130 was evenly matched with the La-7 but was inferior to the Yakovlev Yak-3 in horizontal planes. The new fighter, officially designated La-9, entered production in August 1946. A total of 1,559 aircraft were built by the end of production in 1948.


Variants


Like other aircraft designers at the time, Lavochkin was experimenting with using jet propulsion to augment performance of piston-engined fighters. One such attempt was La-130R with an RD-1Kh3 liquid fuel rocket engine in addition to the Shvetsov ASh-82FN piston powerplant. The project was cancelled in 1946 before the prototype could be assembled. A more unusual approach was La-9RD which was tested in 1947–1948. It was a production La-9 with a reinforced airframe and armament reduced to two cannons, which carried a single RD-13 pulsejet (the engine which powered the V-1 flying bomb, probably taken from surplus Luftwaffe stocks) under each wing. The 70 km/h (45 mph) increase in top speed came at the expense of tremendous noise and vibration. The engines were unreliable and worsened the handling. The project was abandoned although between 3 and 9 La-9RD were reported to perform at airshows, no doubt pleasing the crowds with the noise.

Other notable La-9 variants were:


Operators


People's Republic of China
East Germany
North Korea
Romania
Soviet Union

Surviving aircraft



China



North Korea



Romania



United States



Specifications (La-9)


3-view drawing of Lavochkin La-9
3-view drawing of Lavochkin La-9

Data from [citation needed]

General characteristics

Performance

Armament


See also


Related development

Aircraft of comparable role, configuration, and era

Related lists


References


  1. "Aviation Photo #0861812: Lavochkin La-9 - North Korea - Air Force". Airliners.net. 9 May 2005. Retrieved 6 October 2019.
  2. Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Further reading


The initial version of this article was based on material from aviation.ru. It has been released under the GFDL by the copyright holder.


На других языках


[de] Lawotschkin La-9

Die Lawotschkin La-9 (russisch Лавочкин Ла-9, NATO-Codename Fritz) war eines der letzten mit Kolbenmotor angetriebenen Jagdflugzeuge der Sowjetunion.
- [en] Lavochkin La-9

[fr] Lavotchkine La-9

Le Lavotchkine La-9 (en russe : Лавочкин Ла-9) était un chasseur conçu et fabriqué par le bureau d'études (OKB) Lavotchkine en Union soviétique juste après la Seconde Guerre mondiale. Il fut engagé au combat par l'URSS durant la guerre de Corée, aux côtés de son successeur le La-11. Ce conflit ayant démontré la supériorité des avions à réaction sur les chasseurs à moteur à pistons, le La-9 et le La-11 seront les derniers chasseurs soviétiques à hélice.

[it] Lavochkin La-9

Il Lavochkin La-9 (in cirillico Лавочкин Ла-9, nome in codice NATO Fritz[1]) era un caccia monomotore ad ala bassa progettato dall'OKB 301 diretto da Semën Alekseevič Lavočkin e sviluppato in Unione Sovietica nella seconda parte degli anni quaranta.

[ru] Ла-9

Ла-9 — советский одномоторный поршневой истребитель второй половины 1940-х годов. Был создан ОКБ № 301 под руководством С. А. Лавочкина (г. Химки) как самолёт «130» в 1945—1946 годах. Внешне самолёт был похож на Ла-7; в отличие от Ла-7, имел цельнометаллическую конструкцию и крыло с ламинарным обтеканием, удаление из конструкции дерева привело к снижению массы, что позволило увеличить ёмкость топливных баков и установить четыре пушки.



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