Military aviation needs innovative hangar solutions due to tight scope requirements. Conventional sliding hangar doors create a large amount of dead space and site constraints of conventional hangars with door pockets have in some cases limited the size of the hangar. Traditional doors do not provide a tight closure, leading to bird infestation and air infiltration problems. In harsh climates, traditional doors allow energy loss and the build up of snow or sand makes the track system difficult to clean and operate. 

Additionally facilities that are constant alert require the door system to be extremely reliabile for instantaneous egress. 
Crawford Megadoors are engineered to work in such conditions.

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