Keywords: aviation aircraft airplane bomber military aviation militaryaviation prototype flight test flighttest united states air force unitedstatesairforce us air force usairforce usaf north american aviation northamericanaviation north american northamerican naa north american b-70 valkyrie northamericanb70valkyrie north american b-70 northamericanb70 north american valkyrie northamericanvalkyrie b-70 valkyrie b70valkyrie b-70 b70 valkyrie north american xb-70 valkyrie northamericanxb70valkyrie north american xb-70 northamericanxb70 xb-70 valkyrie xb70valkyrie xb-70 xb70 north american xb-70a valkyrie northamericanxb70avalkyrie north american xb-70a northamericanxb70a xb-70a valkyrie xb70avalkyrie xb-70a xb70a north american na-278 northamericanna278 na-278 na278 general electric generalelectric ge general electric j93 generalelectricj93 ge j93 gej93 j93 general electric yj93 generalelectricyj93 ge yj93 geyj93 yj93 general electric yj93-ge-3 generalelectricyj93ge3 yj93-ge-3 yj93ge3 blackandwhite monochrome vehicle outdoor black and white NARA RG342-B..April 1960 NARA RG342-B..April 1960 |