17. The system of claim 16 wherein adding one or more instances of flight intent comprises selecting a strategy from a plurality of stored strategies and adding an instance of flight intent corresponding to the strategy.
17. The system of claim 16 wherein adding one or more instances of flight intent comprises selecting a strategy from a plurality of stored strategies and adding an instance of flight intent corresponding to the strategy. 18. The system of claim 17 wherein the plurality of stored strategies are identified by the degrees of freedom the plurality of stored strategies influence, and a strategy is selected to close a degree of freedom from the plurality of stored strategies identified to influence the degree of freedom.