Specifications include, but are not limited to: The boarding ramp is utilized in loading and unloading passengers between the aircraft and the airport apron. All necessary drive mechanisms, enclosures and controls shall be included in the design manufacture and installation of the unit.B. Units shall be the current model year.C. Units shall be designed to be fully mobile on the aircraft apron, by use of a drivable tug/vehicle.D. Units shall be designed, manufactured, assembled and commissioned in such a manner so as not to affect the Owner's warranty on any other equipment or system.E. The term “Mobile Aircraft Boarding Ramp”, "Mobile Boarding Ramp", "Boarding Ramp",and "Ramp" as used within this specification and throughout the contract documents is understood to mean the components, subcomponents and subsystems that constitute a complete, operable, and maintainable mobile boarding ramp, and as referred to herein, are synonymous