because if the sails didn't work you would still have the rudder in the back and you would have to control it another way
A sailor can manage a ship better with rudders and move the ship. Larger sails were also moveable so they could change direction and speed.
Small boats use a bar attached to the rudder to steer. Larger boats and ships will use a wheel and rope or chain system to control the rudder.
Fifteenth century ships, such as those Vespucci sailed on were large, and constructed of wood, with numerous billowing sails. The ships were sometimes reinforced with metal to make them more seaworthy. These ships were highly dependent upon wind being strong enough to maintain constant sailing, yet not too strong as to damage the ships.
Two basic type of rudder r balanced n non balanced rudder
Ships turn with the aid of a rudder at the stern of the ship .
"Square sails" which are not really square, were/are referred to as four-cornered sails.
pinta
The extended keel or centerboard, the rudder, and the fore-and-aft rigging of sails all help a boat sail closer to the wind.
yes
He had the caravel which has 3 sails.
Yes
A rudder is mounted on the stern of a boat and is used to steer. It can also be found on ships, planes, aircraft, and submarines.