Origin [edit]. The systematic use of belt color to denote the rank was first used by Kano Jigoro, the founder of judo, who first devised the colored belt system using obi (sash), and awarded the first black belts to denote a Dan rank in the 1880s. Previously, Japanese Koryu instructors tended to provide certificates.
Everything for a safe and comfortable trip. Air safety is the theory, investigation, analysis, and categorization of flight failures (aircraft incidents and accidents), and the prevention of such failures through regulation, education and training.
Federal Aviation. Administration. FAA Maintenance and Inspection Research. September 22, 2015. Aviation Safety (AVS) Aviation Safety is the organization within the FAA that is responsible for the. certification, production approval, and continued airworthiness of aircraft; and. certification of pilots, mechanics, and others in safety-related positions.