Lockheed XB-30 concepts

[Dizzyfugu]

That L-1249 is gorgeous !

Second that. A beauty!  

Concerning the weapon bay(s), I'd suggest a look at the Il-38 - also an airliner derivative. The wing main spar of the low wings could not be touched, so the weapon bay was split:

[sandiego89]

The vertically loaded bomb, like the He-111, seems to be under-whiffed.  Pehaps that could be a solution for aircraft with spar issues where the bomb bay would be: have some of the cells ahead of the spar, some behind. You could have much smalller bay doors than with horizonally hung weapons. 

I understand this configuration created some wobble and reduced accuaracy as the bomb had to transition from nose up to nose down- seems you wanted the tip of the loaded bomb pointing up in the bomb bay -something about the thought of dropping the nose of a live bomb onto the ramp 

[rickshaw]

What has always surprised me from the little pieces of film I've seem of He111 dropping bombs is just how little wobble there is when the bomb hits the airstream.  The bombs appear as steady as rocks after a few wobbles and fall true.   The big problem with vertical deployment is that it limits the size of the bomb that can be carried to that which can be fit inside the fuselage.  Horizontal stowage seems a much more sensible way of doing it IMHO.