An apparatus for and method of utilizing an internet terminal coupled to the world wide web to request analysis of data from an existing proprietary data base management system having a dialog-based request format. Unnecessary changes to outputs of latch circuits may be reduced by preventing the outputs of the latch circuits from changing when an invalid command is detected. The network interface includes a network transaction queue. The dendrites are altered to yield cast product exhibiting good resistance to cracking. A controller is operatively joined to the core engine and afterburner and configured for scheduling fuel thereto for operating the afterburner dry during subsonic flight operation of the engine, wet during transonic flight, and dry during supersonic flight.