There was no B-45B the improved version with upgraded fire control and avionics was canceled instead North American produced the C (10 qty) and RB (33 qty) which made the total of all variants 142 would like to hear from any person
with interest in this airplane (FYI: 3 books are in process of being written about it and the 47th bomb wing that flew it during the cold war. 06/30/2001 @ 21:41 [ref: 2559]