Royal Observer Corps (ROC)

leading observer / Crew Supervisor / NRC Supervisor / Post Instructor 

chief observer / Crew Supervisor / NRC Supervisor / Post Head Observer 

observer officert

observer lieutenant / admin officer / group staff officer

observer lieutenant commander / personal service officer / supply officer / area staff officer / deputy group commandant

observer commander / senior admin officer / deputy area commandant / 

observer captain / chief of staff / area commandant

air commodore / commandant ROC