unclassified department of the air force fiscal year fy 2007 budget estimates research development test and evaluation rdt&e descriptive summaries volume i scientific technology activities 1 3 february 2006 introduction explanation contents u general a this document has been prepared to provide information on united states usaf program elements projects in president s all exhibits have assembled accordance with dod 7000 14r financial management regulation 2b chapter 5 section 050402 exception exhibit r which was distributed under separate cover due classification 2 other comments 2a narrative for within classified formats are guidelines requirements congressional committees insofar as possible b