Watch these great-sounding F-15C Eagle jets blast through the Mach Loop on low-level flybys. The sound is absolutely brutal as the Eagles rip past the hills and the noise echoes through the valleys.

Machynlleth Loop, more popularly, and relevantly for that matter, known as "Mach Loop," is a series of grass covered valleys in central Wales that is known the world over by photographers and aviation ...

A USAF F-15E Strike Eagle blasts through the famous Mach Loop in Wales, producing the distinctive “Blue Note” sound that aviation enthusiasts instantly recognize. As the jet races through the narrow ...