Because of a PM I got, I should add for clarification, that the title of this thread is related to the subject matter because it is a F-6D variant of the Mustang. (During WWII, before the "Fighter" designation came about, "F" stood for "Foto", and used in the designations for USAAF photo-recon aircraft (such as the F-5 Lightning). Following the start of the USAF, and the change from "Pursuit" to "Fighter", all photo recon aircraft were re-designated "RF" - thus called RF-51D in USAF service).