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The past three decades have seen a number of less-than-successful efforts to develop high-altitude unmanned aerial vehicles. In 1994, the Defense Advanced Research Projects Agency, in conjunction with the Defense Airborne Reconnaissance Office, initiated an effort — designated the High-Altitude Endurance Unmanned Aerial Vehicle Advanced Concept Technology Demonstrator (HAE UAV ACTD) — whose goal was to facilitate the development of UAVs through the use of a new and innovative acquisition strategy. This report addresses the effect of that acquisition strategy on the flight test program of the two air vehicles: the conventional Global Hawk and the low-observable DarkStar. The authors found that because DarkStar was canceled after having logged only 6.5 flight hours, not enough flight experience was accumulated to allow for an understanding of the vehicle's flight characteristics or military utility. By contrast, Global Hawk accumulated ample experience to permit a demonstration of its military utility, achieving a level of performance that was close to predicted goals. The precise effect of the HAE UAV acquisition strategy remains the subject of debate. The strategy did, however, influence some key aspects of the flight test program, most notably its increased contractor involvement and its early operational testing in the form of user demonstrations. The flight test program also served to illustrate the vital need for early involvement of operational users to bolster the capabilities and perspective of the contractor.

Table of Contents

  • Preface PDF

  • Figures PDF

  • Tables PDF

  • Summary PDF

  • Acknowledgements

    Acknowledgments PDF

  • Acronyms PDF

  • Chapter One

    Introduction PDF

  • Chapter Two

    Overview of the HAE UAV ACTD Flight Test Program PDF

  • Chapter Three

    Global Hawk PDF

  • Chapter Four

    Darkstar PDF

  • Chapter Five

    Comparison to Other Aircraft Programs PDF

  • Chapter Six

    Test Program Composition and the Transition to MDAP PDF

  • Appendix A

    Global Hawk Flight Test Data PDF

  • Appendix B

    Darkstar Flight Test Data PDF

  • Bibliography PDF

  • Other Program Documentation PDF

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The research described in this report was performed under the auspices of RAND's Project AIR FORCE unit.

This report is part of the RAND Corporation monograph report series. The monograph/report was a product of the RAND Corporation from 1993 to 2003. RAND monograph/reports presented major research findings that addressed the challenges facing the public and private sectors. They included executive summaries, technical documentation, and synthesis pieces.

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