Ketch mizzen sheet. So on a ketch, the dual purpose of the mizzen sail is to both propel and balance the vessel, while on a yawl, the smaller mizzen mainly serves the purpose of trim or balance. Yawls tend to have mainsails almost as large as those of comparable sloops. A ketch may be distinguished from a cutter or a sloop by virtue of having two masts rather than one, though a ketch with two foresails is sometimes called a "cutter-rigged ketch". Both the ketch and the yawl differ from the two-masted schooner, whose aft mainmast is taller than the foremast.
Jack Ketch took his place, but on 28 May, following his conviction for robbery, Rose himself was hanged at Tyburn and Ketch reinstated. Ketch died in November 1686. In 1836 a fictitious autobiography of Ketch, with illustrations from designs by Meadows entitled "The autobiography of Jack Ketch", was published. Another book entitled "Life of Jack Ketch with Cuts of his own Execution" was furnished by Tom Hood for the Duke of Devonshire's library at Chatsworth. Jack Ketch is one of the characters in Giovanni Piccini (d.1835) "The Tragical Comedy or Comical Tragedy of Punch and Judy" as dictated to John Payne Collier,