Pasinei nokusava uchitsanya kana refu-siyana ndege mukirasi yayo, Douglas DB-7 dzakatevedzana akazvitsaurira somunhu yakaoma, yakavimbika kurwa ndege ane mukurumbira wakanaka nokuda nokukurumidza uye maneuverability. In mushumo British Airplane uye Armament Experimental Establishment (AAEE) pana RAF Boscombe Down, bvunzo vatyairi akapfupikisa se: "haana uori uye zviri nyore chaizvo kuti kubvisa uye kunyika... The ndege inomiririra yakatarwa zvinobatsira mukugadzirwa zvinodzora zvinobhururuka... zvikuru hunofadza kubhururuka uye maneuver. " Ex-vatyairi kazhinji funga kuti yavo kufarira ndege hondo nokuda kukwanisa toss it kumativi akafanana murwi.
Douglas DB-7