Republic XP-47J Superbolt – Fastest Piston Engine Fighter Ever
The P-47 certainly made its mark, but it isn’t so well remembered that one example was the fastest piston engine fighter ever built – the XP-47J. In mid-1942, Republic Aviation Corporation initiated a design study to lighten their P-47 Thunderbolt fighter for improved performance. The Thunderbolt had been steadily gaining
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