580
Fulghum, 'Solar-Powered UAV to Fly at Edwards,' 27; and Brown, 'The Eternal Airplane,' 100.
581
Interview with Lt. Col. Dale Tietz, director of the Raptor/Talon program, April 5, 1994.
582
Interview with Bob Curtin of AeroVironment Inc., April 5, 1994.
583
David A. Fulghum, 'Scud-Killing UAVs Now Science Tool,'
584
Curtin interview, April 5, 1994.
585
AeroVironment Inc., 'Backgrounder — Pathfinder Solar-Electric Aircraft.'
586
Brown, 'The Eternal Airplane,' 100.
587
Lt. Col. Dale Tietz, 'Raptor/Talon Briefing,' Ballistic Missile Defense Organization, 1993; and Dornheim, 'Raptor/Pathfinder to Test High-Efficiency Propulsion,' 60.
588
Brown, 'The Eternal Airplane,' 74; and AeroVironment Inc., 'Backgrounder — Pathfinder Solar-Electric Aircraft.'
589
AeroVironment Inc., 'Backgrounder — Pathfinder Solar-Electric Aircraft.'
590
Conversations with NASA personnel at the Pathfinder display, 1993 Edwards AFB Air Show; and 'Solar- Powered Spy,'
591
Tietz interview, April 5, 1994.
592
Ballistic Missile Defense Organization, ''Pathfinder' Solar-Electric Unmanned Air Vehicle Data Sheet,' 1993.
593
Ballistic Missile Defense Organization, 'Pathfinder Questions and Answers,' 1993.
594
Louis C. Gerken,