Cloud reflections on port tail of a B-17G 'Flying Fortress' a WW-II heavy bomber on display this week at the Fargo Air Museum. This B-17 is painted as quot;Sentimental Journeyquot;.

Tail surfaces, both vertical and horizontal, are similar in structure to the wings, except that sheet stiffeners, instead of corrugated sheet, are used to support the skin. The loads on these surfaces are lighter, hence the structure is made comparatively lighter. -manual