In one embodiment, an apparatus includes a door plug assembly with a sonotube-launch system to be used in a temporarily-mounted control system for an aircraft. The door plug assembly is built from one or more panels designed to fit an opening in the fuselage of the aircraft, the opening being created by the removal of a door on the side of the fuselage. The door plug assembly includes a segmented bubble window with transparent glazing, with a kick panel on the lower portion of the bubble. The door plug assembly further includes a door strut indent which allows a strut to extend from the interior of the aircraft through the indent to the exterior of the aircraft. When a strut is not being used, a close-out panel is secured to the door plug assembly to allow the interior of the aircraft to be pressurized.