[Revi16]

This document from 1949 includes Flying Fortress.
http://www.wwiiaircraftperformance.o...cteristics.pdf

This May 45 Pilot Training Manual uses both Fortress & Flying Fortress.
http://aviationshoppe.com/manuals/b1...nual/b-17.html

Original Service Manual with Fying Fortress.
http://95thbg.org/95th_joomla/images...20Manual_3.jpg
http://95thbg.org/95th_joomla/index....189&Itemid=315