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Yakolev Yak-30 [1948]


The Yakolev OKB's response to the March 1946 requirement for a Rolls-Royce Derwent-powered Mach=0.9 "frontal" or general-purpose tactical fighter suitable for use from existing unpaved airfields was the Yak-30. Derived from the Yak-25 from which it differed primarily in having wings sweptback 35 degrees at quarter chord, the Yak-30 retained the fuselage, tail surfaces and undercarriage of the earlier fighter fundamentally unchanged, together with the three-NR-23 cannon armament. Powered by a 1590kg RD-500 turbojet, the first of two Yak-30 prototypes was flown on 4 September 1948. The second prototype, the Yak-30D, which joined the flight test programme early in 1949, had a 38cm section inserted in the aft fuselage, revised mainwheel doors forming a large section of the fuselage skinning, Fowler-type flaps in place of split flaps, increased fuel and ammunition capacity, and changes to the oxygen system and radio equipment. The Yak-30D was also fitted with air brakes on the aft fuselage. Normal loaded weight (without external fuel) was increased by 110kg. Although the modifications introduced by the Yak-30D eradicated several shortcomings displayed by the first prototype, the first production deliveries of the superior MiG-15 were already taking place by the time that the improved version of the Yakolev fighter entered flight test, and the results of NIl V-VS trials were, therefore, little more than academic.

Max take-off weight: 3330 kg / 7341 lb
Empty weight: 2415 kg / 5324 lb
Wingspan: 8.65 m / 28 ft 5 in
Length: 8.58 m / 28 ft 2 in
Wing area: 15.10 sq.m / 162.53 sq ft
Max. speed: 1010 km/h / 628 mph
Ceiling: 15000 m / 49200 ft
Range w/max.fuel: 1720 km / 1069 miles
Crew: 1

Yakolev Yak-30



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