Dark Eagles: A History of the Top Secret U.S. Aircraft

565

Stuart F. Brown, 'The Eternal Airplane,' Popular Science (April 1994), 73.

566

Michael A. Dornheim, 'Raptor/Pathfinder to Test High-Efficiency Propulsion,' Aviation Week and Space Technology (October 11, 1993), 60; and Brown, 'The Eternal Airplane,' 75.

567

Dornheim, 'Raptor/Pathfinder to Test High-Efficiency Propulsion,' 60. The overall program to develop UAVs to carry our ballistic missile detection-interception systems was called 'RAPTOR.' This stood for 'Responsive Aircraft Program for Theater OpeRations.'

568

Ballistic Missile Defense Organization, ' 'Pathfinder' Solar-Electric Unmanned Air Vehicle Data Sheet' (Washington, D.C.: BMDO, 1993).

569

Author's examination of the HALSOL-Pathfinder aircraft at the 1993 Edwards AFB Air Show.

570

Letter: Ballistic Missile Defense Organization to Curtis Peebles, reference FOIA Request 93-F-2470, February 16, 1994.

571

Brown, 'The Eternal Airplane,' 75; and David A. Fulghum, 'Solar-Powered UAV to Fly at Edwards,' Aviation Week and Space Technology (October 4, 1993), 27.

572

AeroVironment Inc., 'Backgrounder — Pathfinder Solar-Electrical Aircraft.'

573

Ballistic Missile Defense Organization, 'Pathfinder Questions and Answers' (Washington, D.C.: BMDO, 1993).

574

AeroVironment Inc., 'Backgrounder — Pathfinder Solar-Electrical Aircraft.'

575

Ibid.; and ' 'Pathfinder' Solar-Electric Unmanned Air Vehicle Data Sheet.'

576

Dornheim, 'Raptor/Pathfinder to Test High-Efficiency Propulsion,' 60.

577

United States Air Force Press Release 'BMDO to Display HALE' (Washington, D.C.: BMDO, October 1, 1993); and 'Pathfinder Questions and Answers.'

578

Ballistic Missile Defense Organization, 'Solar-Powered Pathfinder Soars on First Test Flight' (Washington, D.C.: BMDO, 1993); and NASA videotape of first Pathfinder flight, 1993 Edwards AFB Air Show.

579

Author's examination of the HALSOL/Pathfinder at the 1993 Edwards AFB Air Show.