Ketch ketch and the yawl have two masts, with the main mast foremost; the distinction usually being that a ketch has the mizzen mast forward of the rudder post, whereas on a yawl, it is aft of the rudder post. But the balance of sail area can be an overriding characteristic. If 20% or more of the sail area is in the mizzen sail the rig would be termed a ketch. This is particularly true on center cockpit yachts. Compared to a ketch, a similar size yawl's mizzen sail is much smaller than the main, because of the limitations of the
Battle of the Masts a full-scale assault on the walls of Byzantium. Also it provides a strategic explanation for the Arab fleet's retreat following the victory in the Battle of the Masts, since the First Fitna would not break out until a year later, perhaps influenced by setbacks against the Byzantines and in the Caucasus. The Battle of the Masts was a significant milestone in the history of the Mediterranean, Islam and the Byzantine Empire, as it established the superiority of the Muslims at sea as well as on land. For the next four centuries, the Mediterranean would be a battleground between Byzantines and