 To provide greater coverage for antisubmarine patrols, detachments were organized to fly out of smaller fields.The group primarily used Lockheed A-29 Hudsons for its antisubmarine work, but also flew several other types.Meanwhile, a number of the senior officers of the group headquarters moved to Seattle, where they formed an advanced echelon for IV Bomber Command, which was taking over all Pacific coast antisubmarine operations, including those along the northern coast, which had been controlled by Second Air Force.