A mobile computer aided design apparatus is disclosed comprising a vehicle (100) that includes an engine (102) and a cab (104). Inside the cab is a computer aided design workstation (106). The workstation is coupled to a router (108) wherein the router includes a first wireless communication transceiver (110), a second communication transceiver (112), a third communication transceiver (114). The router is coupled to an antenna system (116). An uninterruptible power supply (118) is coupled to the computer aided design work station, the router, and to the engine. A plotter (120) is coupled to the workstation and carried in the vehicle.