fairchild republic xf-84h thunderscreech

The Fairchild Republic XF‑84H Thunderscreech is one of the wildest experiments in aviation history. It was built in the 1950s by modifying a jet‑powered F‑84F Thunderstreak to use a huge turboprop engine, aiming to get both jet speed and propeller power. The idea was cool: a 12‑foot propeller driven by a powerful Allison XT40‑A‑1 engine … Read more