The YB-17 akabatanidza dzinoverengeka kuchinja zvinokosha kubva Model 299, kusanganisira zvikuru simba Wright R-1820-39 dutu injini. Kunyange zvazvo zvikabva zvaita kambani-vaiva uye haana kugamuchira muchiuto Serial (the B-17 zita pacharo haana kuoneka pamutemo kusvikira January 1936, anenge mwedzi mitatu pashure zvikabva zvaitika tsaona), shoko rokuti "XB-17" rakashandiswa retroactively kuti NX13372 kuti airframe uye akapinda lexicon kutsanangura wokutanga Flying Fortress.
gomba repamutemo