Retired Col. Donald E. Davis, former head of Aviation Logistics Support Branch at Headquarters Marine Corps, learns the Radio shop layout while on a tour with Gunnery Sgt. Daryl A. Porter, the radar section staff noncommissioned officer in charge, Marine Aviation Logistics Squadron 11, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, I Marine Expeditionary Force, here Oct. 26. Davis toured many of sections and shook hands with the Marines who work there. (Official U.S. Marine Corps photo by Cpl. Christopher O'Quin)(Released) - Retired Col. Donald E. Davis, former head of Aviation Logistics Support Branch at Headquarters Marine Corps, learns the Radio shop layout while on a tour with Gunnery Sgt. Daryl A. Porter, the radar section staff noncommissioned officer in charge, Marine Aviation Logistics Squadron 11, Marine Aircraft Group 11, 3rd Marine Aircraft Wing, I Marine Expeditionary Force, here Oct. 26. Davis toured many of sections and shook hands with the Marines who work there. (Official U.S. Marine Corps photo by Cpl. Christopher O'Quin)(Released)