393rd Bombardment Group
[1][2] In March, the group moved to Gowen Field, Idaho and began to equip with Boeing B-17 Flying Fortresses to act as an Operational Training Unit (OTU).[1] The OTU program involved the use of an oversized parent unit to provide cadres to "satellite groups".[1][2] On 1 August 1943, the group moved to Kearney Army Air Field, Nebraska, where it was joined by its component squadrons and changed its mission to a Replacement Training Unit (RTU).[9] As a result, the 393rd, along with its components were inactivated and their personnel and equipment were combined with those of support units at Sioux City into the 224th AAF Base Unit (Combat Crew Training Station, Bombardment, Heavy), which assumed the base's training mission.[1][2][10] This article incorporates public domain material from the Air Force Historical Research Agency