Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Pakutanga Boeing Model 69, yakafuridzirwa nemigumisiro yemiedzo paFB-6, iyo yaifambiswa nePratt & Whitney R-1340B Wasp radial injini. Boeing akatanga kushandisa injini iyi murwi akagadzirirwa zvakananga vatakuri akavhiyiwa, uchishandisa chete welded-chubhu fuselage namapapiro emapuranga-puranga sezvo nokuda Model 15, uye achiwedzera guru spinner kuderedza mhepo kumbotamba kumativi injini (ichi wakadonhedzwa kugadzirwa). Zvombo zvacho zvaiva zvombo zviviri zve.30 in (7.62 mm), kana imwe.30 in uye imwe.50 in (12.7 mm); bapiro repasi raive nezvakagadziriswa kusvika kumabhomba mana e25 lb (11 kg), pamwe nechishanu chaigona kuturikwa kubva kumhepo.  Mubvunzo: Chii chakafuridzira kugadzirwa kweBoeing Model 69?
migumisiro yemiedzo paFB-6