A Royal Air Force station is a permanent Royal Air Force operations location. Most RAF stations are aerodromes, or airfields, being the home to one or more flying squadrons. Other RAF stations are training units, administrative units, headquarters (HQ), or carry out ground-based operational tasks. Although many RAF units are often called stations, they can only be properly classified as an RAF station if they are self-accounting with their own station commander and headquarters. Units without a station commander or headquarters staff will ordinarily be a satellite of an RAF station proper.