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Yakovlev Yak-50 was an early experimental turbojet interceptor aircraft designed in 1948 by the Yakovlev OKB in the USSR. The aircraft was essentially a stretched version of the Yakovlev Yak-30 (1948), with a more powerful engine and greater wing sweep. The Yak-50 is perhaps most significant as the first Yakovlev aircraft equipped with velosipednoye (bicycle) landing gear, a trademark of later Yakovlev designs. The Yak-50 designation was later reused for a propeller-driven aerobatic and trainer aircraft.[1]

Yak-50
Role Fighter/interceptor
Manufacturer Yakovlev
First flight 15 July 1949
Status Cancelled
Primary user Soviet Air Forces

Development and design


On February 21, 1949 a Sovmin order requested the Yakovlev OKB to design a lightweight, radar-equipped, all-weather and night interceptor capable of Mach 0.97 at 4,000 m (13,000 ft). The aircraft was to utilize the Klimov VK-1 engine which first appeared on Mikoyan-Gurevich MiG-15 and MiG-17 fighters. This engine was itself a Soviet copy of the British Rolls-Royce Nene centrifugal turbojet initially known as the RD-45. The leading fighter OKBs each created a prototype to meet the requirement, which included the Lavochkin La-200, MiG I-320, Sukhoi Su-15 (unrelated to the later aircraft with the same designation) and the Yak-50 (again, unrelated to the later aircraft). A major difference was that while Yakolev used one engine, the other design bureaus used two.[1]


Testing


The aircraft first flew on 15 July 1949,[1] with test pilot Anokhin achieving supersonic speed (Mach 1.03 at 10,000 m (33,000 ft)) in a shallow dive during one of the test flights.

Ultimately, none of the newly developed aircraft was selected, and an upgraded MiG-17 was eventually employed. Yakolev later used the velosipednoye landing gear in the Yak-140 fighter and the Yak-120, and later in the Yak-25 and Yak-28 where it proved highly successful.[1]

The Yak-50 never received an ASCC name or USAF reporting number.[1]


Operators


 Soviet Union

Specifications


Data from [citation needed]

General characteristics

Performance

Armament


See also


Related development

Aircraft of comparable role, configuration, and era

Related lists


References


  1. Gunston, 1997



На других языках


[de] Jakowlew Jak-50 (1949)

Die Jakowlew Jak-50 (russisch Яковлев Як-50) war ein allwettertaugliches Abfangjagdflugzeug. Es entstand als logische Fortsetzung einer ganzen Reihe von Versuchs-Strahlflugzeugen aus dem OKB Jakowlew und war das Konkurrenzmuster zur Lawotschkin La-200, Mikojan-Gurewitsch I-320 und Suchoi Su-15.
- [en] Yakovlev Yak-50 (1949)

[ru] Як-50 (1949)

Як-50 — советский опытный легкий истребитель-перехватчик, непосредственное развитие Як-30, но с углом стреловидности крыла в 45° и более мощным двигателем ВК-1 с 2700 кгс тяги. За высокую скороподъёмность, которую обеспечивали мощный двигатель и малый вес самолета, за рубежом его прозвали "Поршневая ракета" (Radial Rocketship). Было изготовлено два опытных образца истребителя-перехватчика Як-50 в 1949 и в 1950 годах.[1] В серии истребитель Як-50 не строился, поскольку на заводах уже осваивался МиГ-17 — дальнейшее развитие весьма удачного истребителя МиГ-15.



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