In warbixin ah in diyaarad British iyo hubka tijaabada Establishment (AAEE) ee RAF Boscombe Down, tijaabo duuliyayaasha koobay sida: "ma laha wax khasaare ah oo waa mid aad u fudud in ay ka baxaan iyo dhul... diyaarad The ka dhigan tahay faa'iido cad ee design ee duulaya gacanta... aad u xiiso leh in ay duulaan iyo maneuver. " ex-duuliyayaasha inta badan u arkaan in ay diyaaradaha ay jecel yihiin ee dagaalka ay sabab u tahay awoodda ay u tuuro sida diyaarad dagaal. Diyaaradda Douglas DB-7 ayaa la ogaaday in ay aad u dabacsan oo helay door dagaal oo dhan ee dagaalka, iyo ka sarreeyey sida duuliye American ah ee "Diyaaradda Diyaaradaha iyo hubka tijaabada Establishment (AAEE) ee RAF Boscombe Down, duuliyayaasha tijaabada koobay sida: "ma laha wax khasaare ah oo waa mid aad u fudud in ay ka baxaan iyo dhul... Diyaaradda waxay ka dhigan tahay faa'iido cad
Douglas DB-7