iirc it has to do with missile weight and the height of the hardpoints iirc it has to do with missile weight and the height of the hardpointsWell maybe.
I had nothing to do with SAC and was 100% TAC.
I will say this. I could put 1.5 of my body-weight over my head and that made basic a breeze. They offered me a job as a transport something or other. I took Forward Air Radar.
Best damn job in the world until your the target. I do miss my Air Force.