The B17G Flying Fortress is likely the most famous american bomber of the WWII.
Born in the late 30's, the B17 was built at 12677 units and saw action on every operation theater until 1959.
3D : khamsin Textures : khamsin
Systems : Arno54 Animations : Arno54
Flight model : Arno54 Manual : Arno54 & khamsin
Documentation : Chouchou Translation : Chip
Beta test : XPFR team, Chip & Simon (X-Plane10 blog)
Goodway & Checklister files : Clochette
A version 1.1 (update for X-Plane 10, built outside XPFR) is available on x-plane.org.