ARMY TM 10-8340-224-13AIR FORCE TO 35E5-6-1NAVY NAVFAC-P-337.A(8) Vestibule Frame Assembly.The vestibule assembly iscomposed of three components made of aluminum tubing:twoupright poles with attached baseplate, and a header.Holes inthe baseplate permit the assembly to be staked to the ground.Three vestibule frame assemblies are required to support avestibule with door.c. Double Bump -Throuqh Door Assembly.The double bump-throughdoors consist of two spring-loaded swinging doors (1) mounted inan outer frame.The doors are constructed of a honeycombed coresandwiched between aluminum skins.A window (2) and blackoutflap (3) are located on each door. Hinged ramps (4) at the bottomof the frame permit easy access by wheeled items. The doublebump-through doors are designed for use with tent end sectionadapters, tent door section adapters, and vestibules. Avestibule door cap must be used to provide complete weatherresistance.The doors can also be used at end sections with theadapter rolled back and tied in place. Extenders (5) are suppliedwith the door and are only used in the end section application.The double bump-through door is illustrated in Figure 1-3.Figure 1-3.DOUBLE BUMP-THROUGH DOOR ASSEMBLY1-11
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