1. Israel initially denied the existence of the pilotless aircraft , or drone. 2. His plans included development of a pilotless aircraft , a jet fighter and amphibious aircraft. 3. He worked in the Pilotless Aircraft Research Division and later directed the Performance Aerodynamics Branch. 4. Robertson said one objective of the attacks was to stop Iraq's development of pilotless aircraft . 5. Chaput says pilotless aircraft could complement manned fighters. 6. As pilotless aircraft grow more sophisticated, however, they are also growing more vulnerable to escalating costs. 7. The company is moving on to the next generation of combat planes : robotic, pilotless aircraft . 8. The United States fielded remote-controlled, pilotless aircraft in the Persian Gulf War and later in Bosnia. 9. Defense officials confirmed that a Predator pilotless aircraft fired a Hellfire missile into one of the targets. 10. As Mahadi spoke, bursts of machine-gun fire rang out nearby, and an Israeli drone, a pilotless aircraft , buzzed overhead.
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