Elwyn R shares a look at The Normandy Spitfire and Porky II Spitfire low level flying through the Mach Loop in west-central Wales, UK. The Mach Loop (Dolen Machynlleth) is a series of valleys used by pilots from the Royal Air Force (RAF) and United States Air Force (USAF) for low-level military flight training. Be sure to watch Classic 1940s Fighter Planes if you enjoyed this aviation video.















