Abstract: A method and apparatus for distributing a number of utilities. The number of utilities may be coupled between a number of utility sources and a utility fixture. The number of utilities may be coupled between the utility fixture and a mobile system.

Abstract: Methods and means for reconfiguring an aircraft assembly plant that receives fuselages or fuselage sections via a public railroad system. In cases where the aircraft assembly plant comprises a first assembly line for installing (i.e., stuffing) equipment inside fuselages or fuselage sections and a second assembly line for installing equipment on exteriors of internally equipped fuselages or fuselage sections, both assembly lines being housed in the same building, the facility can be reconfigured by moving at least one fuselage stuffing operation of the first assembly line to an auxiliary building which overlies a railroad track connected to the public railroad system. The moved fuselage stuffing operations will be performed inside the auxiliary building while each fuselage or fuselage section is supported in an upright position on a respective railroad flat car.

Abstract: A method and apparatus for distributing a number of utilities. The number of utilities may be coupled between a number of utility sources and a utility fixture. The number of utilities may be coupled between the utility fixture and a mobile system.

Abstract: A method and apparatus for adjusting an adjustable retaining structure. The adjustable retaining structure may be rotated, passively, about a spherical interface as a panel applies a load to the adjustable retaining structure.

Abstract: A method and apparatus for positioning an end effector relative to a fuselage assembly. A configuration of the fuselage assembly may be determined. The end effector may be positioned relative to the fuselage assembly based on the configuration determined. A set of actual reference locations may be identified for a set of reference points on the fuselage assembly. The end effector may be positioned at an operation location based on the set of actual reference locations identified.

Abstract: A method and apparatus for accessing an interior of a fuselage assembly. A tower having a number of platform levels may be driven into a selected tower position within an assembly area. The interior of the fuselage assembly may be accessed using the number of platform levels.

Abstract: A method and apparatus for building a fuselage assembly for an aircraft. A number of fixtures may be drive across a floor to an assembly area to form an assembly fixture. The fuselage assembly may be built on the assembly fixture.

Abstract: A method and apparatus for generating a project plan from project description information for a project comprising a plurality of tasks. The project description information may include information describing precedence relationships between the tasks, information indicating durations of the tasks, and information indicating variability in the durations of the tasks. A simulation model is generated for the project using the project description information. The simulation model is run for a plurality of runs to identify a subset of tasks forming a critical path and to generate simulation results data. A project network presentation is generated from the simulation results data. The project network presentation includes the identified subset of the tasks forming the critical path.