Overall view up the tail unit. Note the aft bulkhead of the LOX tank between
the "triangle" near the top of this photo.
Also note the bellows section where the
braided cover has peeled back on the S-3D engine's fuel high-pressure duct
(top-most silver line, which forms a right-angle).
Three vertical structural elements run the height of the tail unit; two are
visible here while the third is hidden by the engine. Details of the one at
left are at dsc33429.jpg and dsc33411.jpg while a detail of the one at right
is at dsc33413.jpg.