Oh I know the B-47 wasnt in fail safe 

 ,  When I posted the B-58 pics I saw my B-47 pics and had to post it.   B-47 is a pretty airplane and one of my favorites along with B-58.  I had models of both planes when I was kid.  I think with airframe mods, engine upgrades both of these planes could have a lot longer useful service records, I think both were pretty much retired after about 10 years, yet the B-52 is continually upgraded and modified for the last 50 years ( i dont think any of the airframes are 50 years old but the basic design is 50 years old).   
I think my dad told me one time that the B-58s problem was the combination of wing design and engines.  If it lost an engine it had a tendancy to go into an unrecoverable flat spin.  
Looking at my pics, I want to go on vacation again.  I only got to spend about 2 hours at Pima, I need about two days 
