Second master was a rating introduced into the

Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...

in 1753 that indicated a deputy

master Master or masters may refer to: Ranks or titles * Ascended master, a term used in the Theosophical religious tradition to refer to spiritually enlightened beings who in past incarnations were ordinary humans *Grandmaster (chess), National Master ...

third-rate In the rating system of the Royal Navy, a third rate was a ship of the line which from the 1720s mounted between 64 and 80 guns, typically built with two gun decks (thus the related term two-decker). Years of experience proved that the third r ...

ships of the line A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactic known as the line of battle, which depended on the two colum ...

or larger. Second masters were paid significantly more than

master's mate Master's mate is an obsolete rating which was used by the Royal Navy, United States Navy and merchant services in both countries for a senior petty officer who assisted the master. Master's mates evolved into the modern rank of Sub-Lieutenant in t ...

s, £5 5s per month. A second master was generally a master's mate who had passed his examination for master and was deemed worthy of being master of a vessel. Second masters were given the first opportunity for master vacancies as they occurred. Master's mates also acted as second master of vessels too small to be allocated a warranted master.

Footnotes

{{Reflist Military ranks of the Royal Navy