Abstract: A working system for an aeroplane comprising a hangar for accommodating the aeroplane, a partition wall provided within the hangar for partitioning the hangar into a fuselage work area around a fuselage of the aeroplane and a main wing work area around a main wing, and working tables arranged in the fuselage work area. The partition wall is movable between a predetermined partitioning position and a retracted position allowing entrance and exit of the aeroplane. The working tables are movable within the fuselage work area separately from the partition wall.

Abstract: A cleaning system for use in treatment of excess paint is disclosed. The system includes a work area for cleaning excess paint by trapping the paint in a cleaning liquid, a collecting gutter being provided in a floor of said work area for introducing the cleaning liquid containing the excess paint in the form of paint sludge. The collecting gutter incorporates a filter for filtering the cleaning liquid introduced into this gutter. The system further includes a collecting device for collecting the paint sludge trapped by the filter.

Abstract: An air conditioning system for use in an aeroplane hangar. The hangar includes a fuselage work area for works on a fuselage of an aeroplane and a main-wing work area for works on a main wing of the aeroplane, with the work areas being partitioned by a partition wall. An air conditioning device is provided for conditioning temperature of air to be fed to either work area. Further, a recycling device is provided for cleaning air exhausted from the one area and then feeding the cleaned air to the other area.