Look ! Up in the sky ! Is it a bird ? Is it an aeroplane ? Nope, it's the youtube link

For the uninitiated, wikipedia says "The Mach Loop (also known as the Machynlleth Loop) is a series of valleys in the United Kingdom in west-central Wales, notable for their use as low-level training areas for fast jet aircraft and propeller-driven aircraft. Aircraft seen in the area include Airbus A400M and C-130J 4 engine transports, plus Typhoons, Hawks, Tucanos, F15s, F16s, and MC-130 and V-22 Ospreys. Mach Loop is among the few places in the world where photographers can see combat aircraft flying below them." And yes those videos are on youtube
