Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Da farko Boeing Model 69, an yi wahayi zuwa gare shi ta hanyar sakamakon gwaje-gwaje a kan FB-6, wanda aka yi amfani da shi ta hanyar Pratt & Whitney R-1340B Wasp radial engine. Boeing ya fara amfani da wannan injin a cikin jirgin saman soja wanda aka tsara musamman don ayyukan jigilar kayayyaki, ta amfani da fuselage guda ɗaya da fuka-fukan katako kamar na Model 15, da kuma ƙara babban mai juyawa don rage hauhawar iska a kusa da injin (wannan an yi watsi da shi a cikin samarwa). Armament ya kasance ko dai biyu.30 a (7.62 mm) bindigogi, ko daya.30 a kuma daya.50 a (12.7 mm); Ƙananan reshe yana da kayan haɗi don har zuwa hudu 25 lb (11 kg) bama-bamai, da kuma na biyar za a iya rataye daga fuselage.  Tambaya: Menene ya yi wahayi zuwa ga zane na Boeing samfurin 69?
sakamakon gwaje-gwaje akan FB-6