Quoth the Raven, "Reinforced plastic, electronics, flow control devices, and balloons!" Raven Industries' engineered films division does make reinforced plastic sheeting for various applications, including hot air balloons! Its electronic systems division offers electronic manufacturing services, as well as design support, material procurement and management, and eco-stress testing. An applied technology leg manufactures high-tech agricultural aids, from global positioning system (GPS)-based chemical spray equipment to field computers and steering systems. Raven's Aerostar subsidiary produces high altitude research balloons, parachutes, and protective wear used by US agencies. Goodrich is a major customer.