Staff corporal

Staff corporal is the equivalent rank to staff sergeant in the Household Cavalry, ranking between corporal of horse and warrant officer class 2. They may hold an appointment such as squadron quartermaster corporal. A staff corporal wears four point-up rank chevrons on his cuff, surmounted by a crown. Staff corporals are in fact addressed as "Corporal-Major" by superiors and usually as "Sir" by subordinates, a holdover from the fact that the rank was originally called troop corporal-major.