Petty officer is a naval rank in most navies the world over. A petty officer is generally an officer without a commission or in other words a noncommissioned officer. It indicates that such an officer will receive authority only from a commissioned officer.
In the United Kingdom, in the Royal Navy, a petty officer is an officer that ranks higher than a Leading Rating and a rank lower than a Chief Petty Officer. It is the equivalent of a Sergeant in the British Army, Royal Air Force and Royal Marines. In fact in the British navy the rank of petty officer is the lowest of all ranks in the senior rating grades. These officers wear smart formal officer style uniforms.
In the Canadian navy there are two petty officer ranks, namely Petty Officer 1st Class and Petty Officer 2nd Class.
In the United Kingdom, in the Royal Navy, a petty officer is an officer that ranks higher than a Leading Rating and a rank lower than a Chief Petty Officer. It is the equivalent of a Sergeant in the British Army, Royal Air Force and Royal Marines. In fact in the British navy the rank of petty officer is the lowest of all ranks in the senior rating grades. These officers wear smart formal officer style uniforms.
In the Canadian navy there are two petty officer ranks, namely Petty Officer 1st Class and Petty Officer 2nd Class.