In the Royal Canadian Navy, the appointment of coxswain (or "capitaine d'armes" in French) is given to the senior non-commissioned officer aboard a ship, the equivalent to a command master chief petty officer in the US Navy. For larger vessels such as a destroyer, frigate or the ships (AOPVs), a coxswain holds the rank of chief petty officer 1st class (CPO1). For submarines, a coxswain holds the rank of chief petty officer 2nd class (CPO2). For , a coxswain usually holds the rank of petty officer 1st class (PO1) or CPO2.