On 17-Jan-2007, Mechanical Menace wrote:

On Tue, 16 Jan 2007 21:11:01 -0600, Mitchell Holman
wrote:


Unusual F-84 --- one of two made with turboprops.....


XF-84H
Two F-84Fs were converted into experimental aircraft. Each was fitted
with a Allison XT40-A-1 turboprop engine of 5,850 shaft horsepower
(4,365 kW) driving a supersonic propeller. Ground crews dubbed the
XF-84H, the Thunderscreech due to its extreme noise level.[1]




Thunderscreech!!

Made a sound that nausiated the pilots and crews.
Great phenomenon!

Cheers,

Good idea that proved wrong, The plane actually had worse performance than
the straight jet.