Some embodiments provide a system for authorization and authentication of an unlicensed mobile access subscriber. The system includes a method of quick attachment and detachment to the transom of the inflatable sportboat and means to ventilate such planing surfaces with air to reduce drag at high planing speeds. The boat also includes a base pivotally attached to a boat deck, whereby the base can pivot between an open position and closed position to provide access to a power source within a boat hull. The grounding means comprises a first contacting arm extending to said first guiding rail, a second contacting arm extending toward said second guiding rail, and a leg extending to said mounting plane, establishing a grounding path from said first mating portion and second mating portion to a printed circuit board. The fourth layer is equivalent to the second layer, and the fifth layer is equivalent to the first layer. It is determined whether to grant the request based on the requested lock type and the lock type in the lock data structure.