Armorers of the 390th Bomb Group shackle 1,000 lb. bombs to an external rack underneath the wings of a Boeing B-17 Flying Fortress at Station 153 in England. 29 September 1943. Armorers of the 91st Bomb Group load 1,000 lb. bombs on the new external bomb rack, under the wing of a Boeing B-17 Flying Fortress at the 91st Bomb Group base in Bassingbourn, England. 14 September 1943. To increase the load, two external bomb racks, carrying 1000-lb. bombs are added to this Boeing B-17 of the 303rd Bomb Group at Molesworth, England. 18 September 1943. Armorers of the 91st Bomb Group load 1,000 lb. bombs on the new external bomb rack under the wing of a Boeing B-17 Flying Fortress at the 91st Bomb Group base in Bassingbourn, England. 14 September 1943. Boeing B-17F Flying Fortress "The Old Standby" LG-L serial number 42-5178 of the 322nd Bomb Squadron, 91st Bomb Group takes off from Bassingbourn, England on its first mission using the new external bomb racks. 16 September 1943. Boei...