Model Variants (Including Prototypes)
XB-45 - Three prototype aircraft with one fatal lost in testing.
B-45A - Initial Production Model Designation; bombing navigation radar and autopilot implemented; redesigned ejection seats and communications equipment; early delivery models fitted with J35 turbojets with latter models fielded with more improved J47 type; 96 examples produced.
B-45B - Proposed "improved" B-45A model; never produced.
B-45C - Long-Range Variant; fitted with 2 x 1200 gallon fuel tanks at wing tips; aerial refueling probe implemented; reinforced canopy design; 10 examples produced.
RB-45C - Definitive B-45 Model; photographic reconnaissance platform fitted with four camera stations; covered bombardier's canopy; provision for external fuel tanks or JATO type rockets; 38 new-build examples produced with 33 converted from B-45C models.