The Lockheed RF-4 was a variant of the P-38 Lightning, produced PRIOR to the Uniform Joint service designation system. In USAAF nomencalture, "F" meant Photograph (As "P" was already being useed for Fighters (i.e. "pursuit") 09/05/2007 @ 12:09 [ref: 17843]
Jim Baker , WA
Your information as to the manufacturer of the RF-4C, Phantom 11 is incorrect. The Phantom was built solely by the McDonnel Corporation, St. Louis, Mo.