Yakovlev Yak-50 (1949)

Yak-50

General information
Type	Fighter/interceptor
Manufacturer	Yakovlev
Status	Cancelled
Primary user	Soviet Air Forces
History
First flight	15 July 1949

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]

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

Soviet Air Force

Specifications

Data from ^{[citation needed]}

General characteristics

Crew: 1
Length: 11.12 m (36 ft 6 in)
Wingspan: 8.01 m (26 ft 3 in)
Wing area: 16 m² (170 sq ft)
Empty weight: 3,085 kg (6,801 lb)
Gross weight: 4,155 kg (9,160 lb)
Powerplant: 1 × Klimov VK-1 centrifugal-flow turbojet engine, 26.5 kN (6,000 lbf) thrust

Performance

Maximum speed: 1,120 km/h (700 mph, 600 kn)
Range: 850 km (530 mi, 460 nmi)
Service ceiling: 16,050 m (52,660 ft)
Rate of climb: 68 m/s (13,400 ft/min)
Wing loading: 260 kg/m² (53 lb/sq ft)
Thrust/weight: 0.65

Armament

Guns: 2× 23 mm Nudelman-Rikhter NR-23 cannons, 80 rounds/gun

References

^ ^a ^b ^c ^d ^e Gunston, 1997

Gunston, Bill. Yakovlev Aircraft since 1924. London, UK: Putnam Aeronautical Books, 1997. ISBN 1-55750-978-6.

External links

Wikimedia Commons has media related to Yakovlev Yak-50 (1949).

Repair Yak-50

v t e Yakovlev aircraft
Early aircraft	AVF-10 AVF-20 AVF-34 AIR-1 AIR-2 AIR-3 AIR-4 AIR-5 AIR-6 AIR-7 AIR-8 AIR-9 AIR-10 AIR-11 AIR-12 AIR-14 AIR-15 AIR-16 AIR-17 AIR-18 Ya-1 Ya-2 Ya-3 Ya-4 Ya-6 Ya-7 Ya-10 Ya-19 Ya-20 Ya-21 Ya-22 Ya-23
Fighters	Yak-1 Yak-3 Yak-7 Yak-9 Yak-15 Yak-17 Yak-23 Yak-25 (II) Yak-28 Yak-38
Bombers	Yak-2 Yak-4 Yak-28 Yak-35
Transports	Yak-6 Yak-10 Yak-12 Yak-14 Yak-18T Yak-40 Yak-42 Yak-58 Yak-112 Yak-242 (MC-21)
Reconnaissance	Yak-25 Yak-27 Pchela
Helicopters	Yak-24 Yak-100
Trainers	UT-1 UT-2 UT-3 UT-15 UT-21 UT-23 Yak-7 Yak-11 Yak-17 Yak-18 Yak-20 Yak-21 Yak-28 Yak-30 (II) Yak-32 Yak-50 (II) Yak-52 Yak-53 Yak-54 Yak-55 Yak-130 Yak-152 Yak-200 Yak-210
Experimental	EG Yak-5 Yak-8 Yak-13 Yak-16 Yak-19 Yak-25 (I) Yak-26 Yak-30 (I) Yak-36 Yak-41 Yak-43 Yak-44 Yak-45 Yak-46 Yak-50 (I) Yak-60 Yak-140 Yak-141 Yak-201 Yak-1000

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