The wall includes {TAIL ~ an inner panel structure} or {HEAD ~ structures} 12, inwardly of vertical plane 112a, and an outer panel structure or structures 13 
The wall includes { TAIL ~ an inner panel structure } or { HEAD ~ structures } 12 , inwardly of vertical plane 112a , and an outer panel structure or structures 13
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH