Patents Assigned to Don A. Hart & Associates, Inc.
  • Patent number: 6360994
    Abstract: A configurable space launch system of multiple different vehicle configurations that use a common reusable spaceplane and cost effective external tanks is presented. Each vehicle configuration in the system incorporates one or more reusable spaceplanes and most or all ascent propellant in multiple releasable external tanks. The flight trajectory of each vehicle has multiple in-flight staging points to increase vehicle performance efficiency. The system is governed and configured by a unique set of eight prescripts that together minimize launch costs.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 26, 2002
    Assignee: Don A. Hart & Associates, Inc.
    Inventors: Don A. Hart, David W. Geyer