A P=51 pauses for a photo op over the English countryside. (USAF Collection, NASM)

Hi over the clouds, this P-51 heads into action. (USAF Collection, NASM)

"Louis IV", an oft-photographed machine. (USAF Collection, NASM)

A P-51 runs up it's engine prior to takeoff. (USAF Collection, NASM)