HMS Shannon (1757)

HMS Shannon was a 28-gun Coventry-class sixth-rate frigate of the Royal Navy.

Construction
The Shannon was one of five frigates of the class built of fir rather than oak. Fir was cheaper and more abundant than oak and permitted noticeably faster construction, but at a cost of a reduced lifespan; the four fir-built Coventry-class vessels that did not get captured lasted an average of only nine years before being struck off.