A method of launching inflatable airship apparatus for subsequent ascent to high altitude for operation as an airship having a hull formed from an inflated flexible gas containment envelope, payload, drive motor mounted at the stern of the hull and cables, for supporting the payload within the hull, connected to the drive motor and to the hull at, or adjacent to, a nose portion of the hull. The differential signal pairs alternate between a \u201cstraight connection\u201d and a \u201creverse connection\u201d between the connectors. Each of the trailing arm assemblies comprises a frame bracket adapted to be mounted to one of the frame rails and a trailing arm having one portion pivotally mounted to the frame bracket for pivotal movement about a pivot axis. The dipoles are suitable for use with several antenna styles, and are expressly compatible with crossed bowtie slot antennas. Each queue’s transmit value comprises a least-significant bit equal to the corresponding mux output, a most-significant bit that is true if its transaction is transmittable, and middle bits comprising the queue priority. The velocity can be derived from the time lapse and the known distance between the sensors.