Note 6 — Chapter II · PHILIP ENGLISH AND HIS ERA (1680-1750)
Reading edition
The ketch of the eighteenth century was two-masted with square sails on her foremast, and a fore-and-aft sail on the mainmast, which was shorter than the foremast. The schooner rig was not used until 1720 and is said to have been originated by Captain Andrew Robinson of Gloucester.