R - Reconnaissance Aircraft

Model Designation Manufacturer Engine(s) Crew Other
XR-11
Hughes 2 Pratt & Whitney R-4360-31 Wasp Major 2 XF-11
XR-11A
Hughes 2 Pratt & Whitney R-4360-31 Wasp Major 2 XF-11A
XR-12A Rainbow Republic 4 Pratt & Whitney R-4360-31 Wasp Major 7 XF-12A
XR-16
Hughes 8 Pratt & Whitney J57-P-1W/1WA/1WB 8 XF-16, RB-52B