I roto i te pūrongo ki te British Aeroplane me te Armament Experimental Establishment (AAEE) i RAF Boscombe Down, whakamātautau pailati whakarāpopoto reira rite: "e kore he kino, me te he tino ngāwari ki te tango ake, me te whenua... tohu te rererangi he painga tino i roto i te hoahoa o te rere mana... tino ahuareka ki te rere, me te maneuver. " Ex-pailati maha whakaaro reira ratou rererangi tino o te whawhai e tika ana ki te kaha ki te maka i te reira a tawhio noa rite te kaipatu whawhai. kitea te Douglas DB-7 raupapa ki te kia tino ngāwari, me te kitea he tūranga i roto i te whawhai katoa o te pakanga pono, me te pai rite te pailati o Amerika. "A ka mutu te hanga i te rererangi Douglas DB-7 i runga i te whārangi production roa i runga i September 7,1944, i whakaitihia e Boeing i runga i te whārangi hanga, engari i te mutunga i whakaitihia e te wheketere hanga i te reira i roto i te whārangi hanga nui, me te hanga i te hanga i te wheketere
Ko Douglas DB-7