They were helicopters, but too small to carry anybody. Smaller than the smallest micro-light. Kind of dish-shaped. French Aerospatiale gun-platforms, the kind you saw on the news from Mexico City, and he guessed they were under the control of ECCCS, the Emergency Command Control Communications System, who ran the Death Star. One of them swung by, about twenty feet over his head, and he saw the clustered tubes of some kind of gun or rocket-launcher.