The Republic XF-84H "Thunderscreech" is an American experimental turboprop aircraft derived from the F-84F Thunderstreak. Powered by a turbine engine that was mated to a supersonic propeller, the XF-84H had the potential of setting the unofficial air speed record for propeller -driven aircraft, but was unable to overcome aerodynamic ...

The turboprop-driven XF-84H -- a joint Air Force/Navy project -- was designed to combine the speed of jet aircraft with the long range, low fuel consumption, and low landing speed of propeller-driven aircraft.

2024年7月22日 · Since its first flight the Republic XF-84H Thunderscreech has been known as The Loudest Aircraft in the World. The painful scream that emanated from its supersonic propeller tips sickened ground crewmen and could be heard for miles.

2018年1月24日 · Designed as a test-bed for supersonic airscrews at the Propeller Laboratory at Wright-Patterson Air Force Base, the XF-84H was built by Republic Aviation on the airframe of its successful F-84F Thunderstreak jet fighter.

The Republic XF-84H, a joint Navy/Air Force project, was planned to combine jet-like speed with propeller-driven aircraft’s extended range, low fuel consumption, and low landing speed. The XF-84H’s altered F-84F airframe featured a T-tail and a triangular fin behind the cockpit to minimize torque from the propellers.

2018年7月22日 · Republic came up with the XF-84H by taking the wings from an RF-84F Thunderflash and modifying the fuselage to park a 5,850 horsepower Allison XT40-A-1 turboprop engine where the turbojet engine would normally be.

2024年5月28日 · XF-84H "Thunderscreech" was a loud turboprop by Republic Aviation trying to compete with jets in speed. The noise generated was intense enough to cause health hazards to crews and bystanders. Mechanical issues and engine failures plagued test flights, leading to the program's cancellation in 1956.

2022年5月16日 · In the early 1950s, the U.S. Navy needed a carrier-based aircraft that could take off without the help of a catapult. What came out of that order was an Air Force plane with a propeller that spun...

2020年8月13日 · The XF-84H was a joint Air Force/Navy project created by modifying a jet-powered F-84 Thunderstreak fighter to carry the T-40 turboprop engine system. The two T-38 engines that made up the T-40...

2024年6月2日 · Explore the Republic XF-84H "Thunderscreech," a deafening aircraft that redefined turboprop technology and aviation history.