最終更新日：2025/12/07
The XP-90 was the original designation for the Lockheed XF-90 before it was redesignated in 1948, and although it never entered production its prototypes yielded important performance data.
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The XP-90 was the original designation for the Lockheed XF-90 before it was redesignated in 1948, and although it never entered production its prototypes yielded important performance data.
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