John... actually essentially the opposite approach was taken. A mission equipment package was defined... somewhat loosely with respect to ALEs. MOSA was defined. A min speed, max rotor diameter, and max GW was defined, and a couple of generic missions... and that's about it. Competitors were asked to do their best at meeting as many requirements as possible and there has been significant trade space. I'm not aware of an overarching document. The Analysis of Alternatives is only being worked on now, after two prototypes have been developed.