"c14" was built by vickers at their barrow-in-furness shipyard, laid down on 4 december 1906 and was commissioned on 13 march 1908. the boat was sunk in a collision with "hopper no.27" at plymouth sound on 10 december 1913. there were no casualties. she was salvaged and recommissioned. "c14" was finally sold on 5 december 1921.