Today while discussing the maiden flight of the second B-21 Yankee, Shilao and Ayi again implied that H-20's requirement grew out of needing to be able to fit something like JL-1 inside an IWB.
In fact they implied that PLAAF needed a large ALBM with great range like JL-1 because of relatively lack of performance of H-6 variants against B-52 and Tu-95. And in turn these large ALBM then created the updated requirements for H-20.
Wait, so if one of the requirements for the H-20 is to be able to carry the JL-1, which is
about 12.5 meters long, instead of just being able to carry missiles that are too large for the H-6K/Js to carry more than one and not strategic enough for the H-6N to carry one underneath its belly:
What-in-the-world kind of missiles are we dealing with here?
Speaking of which, and taking the width of those newer Neixiang bunkers measured on Google Earth into account and assuming that the length of a flying wing VLO warplane is
very roughly to be 3 times that of the length of its IWBs (which do seem to hold true for the B-2, B-21 and even the J-36), I made two very simplified CAD illustrations on the possible configurations of the H-20 based on available information + Referencing the GJ-11/21's overall design:
Once again, please note that:
1. The rectangular boxes in the middle of each airframes represent 2x internal weapons bays (IWBs) (for the inner two) and 2x engine maintenance access hatches (for the outer two), respectively.
2. All the boxes are ~15 meters long x ~3 meters wide.
I do hope that these two illustrations could be of some help for discussion referencing purposes.