The US Air Force has several large hangars at Dover AFB that service the C130. The hangar doors are over 65' tall and each individually powered by an overhead trolley duct system. For this project, one run of Aeromotive overhead trolley duct was damaged and needed to be replaced. JaCor was contracted to supply and install a new enclosed trolley duct power system. The new trolley duct system features 14' removable sections that can be easily replaced if damaged in the future. Contact JaCor if you need a trolley duct system replaced.