History
The Yak-30 was designed to meet a Soviet requirement for a fighter capable of Mach 0.9, and able to operate from existing unpaved airstrips. To meet this request required a sweptback wing. Yakolev based their design on the existing Yak-25 experimental fighter, but incorporated a modified wing with a sweep of 35 degrees.
Read more about this topic: Yakovlev Yak-30 (1948)
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