B-17 Flying Fortresses of the 381st Bomb Group line up for take off at Ridgewell. B-17 (serial number 42-97882) leads the line up. Printed caption on reverse: '65330 USAF - Boeing B-17 "Flying Fortresses" of the 381st Bomb Group line up in preparation for take-off on bombing mission somewhere over enermy installations, 534th Bomb Squadron area in background, and 533d Bomb Squadron area in foreground. England U.S. Air Force Photo. U.S. AIR FORCE PHOTO 1361st Photographic squadron Aerospace Audio-Visual Service (MAC).' Handwritten caption on reverse: 'Ridgewell.'