airship at a time the structure is designed to withstand wind and snow loads as required in the geographical area of installation the structure may be provided with conventional hangar doors or u201c beluga u201d style doors the frame is designed to support the cover in a deflated state to allow entry or exit of an airship and rapid re inflation an exemplary embodiment of the structure 100 is shown in plan view in fig1 wherein support frames 10 are anchored to a concrete slab 20 or other earth anchor points 12 at the perimeter of the structure any rigid material may be used for the support frames 10 in embodiments the support frames 10 are steel the invention is not limited to any particular dimensions but in embodiments the structure may obtain an overall length of 300 m to 500 m a width including an opening of 100 m to 150 m and a height of 50 m to 70 m the support frames 10 may be adapted to form arches reaching from anchor points 12 on opposite sides of the concrete slab 20 and meeting at junction points near the top of the structure the support frames on opposite ends of the structure are adapted to pivot about respective anchor point 12 to allow for opening the structure as described below to accommodate egress or entrance of the airship or aircraft the support frames on opposite ends of the structure are arranged side by side in an upright fashion such that the support frames on the ends of the structure.