08/15/2008. This is one of 71 P-51B-10-NAs converted to the F-6C, the only major variant of the P-51B/C, some 20 P-51C-10-NTs were also converted to this armed photographic version. It carried either one K-17 and one K-22 camera, or two K-24 cameras in the rear fuselage just in front of the tail wheel bay.