Tech. Sgt. Rebecca Hatfield shows the components of an MQ-1 Predator unmanned aerial vehicle engine. U.S. Air Force Tech. Sgt. Rebecca Hatfield (left), an instructor assigned to Field Training Detachment, Det. 26, 163rd Maintenance Group, California Air National Guard, shows the components of an MQ-1 Predator unmanned aerial vehicle engine to Staff Sgt. Carlos Barrera, a crew chief assigned to the 163rd Reconnaissance Wing, at March Air Reserve Base, Calif., on Oct. 15, 2008. Members of the Field Training Detachment train active duty, reserve and Air National Guard personnel on Predator maintenance operations. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 969096-O-MAC98-936.jpg Photo Gallery