The wind, current, and a compass.
I would have said the set of the sails and the rudder...
Without a centerboard, daggerboard or keel, the rudder and sails are useless. Using only wind and/or current is known as 'drifting'. Been there, done that! So! Ultimately, the direction of the wind causes you to manage the direction your ship will take. It is impossible to sail directly into the wind, but you can 'tack' into the wind, by adjusting the 'set' of the sails, and steering with the tiller, wheel, or helm. The compass is used to stay on a pre-determined course. So of course, you may also say that a set of dividers and an accurate chart are vital to the successful management of the direction of your sailing ship. A keen eye to the weather and a steady hand on that helm help, as well.
The science of sailing involves understanding the principles of aerodynamics and hydrodynamics to harness the wind's force and propel the ship forward. Controlling a ship's direction involves manipulating the sails and rudder to catch the wind at the right angles and steer the vessel effectively. Skilled sailors use a combination of techniques, such as tacking and gybing, to navigate their ship in different wind conditions.
You would not use a sailing ship.
It uses wind u doop
Four words you can use instead of galleon: 1. Carrack 2. Carack 3. Sailing Ship 4. Sailing Vessel
The giant ship was literally sailing through the littoral zone!
A ship sailing from Hawaii to the East Coast of the United States is likely to use the Panama Canal. Once through the Canal the ship will head to the East Coast.
The prow of the sailing ship sliced cleanly through the waves.
Sailing ship. It was the only way available then to cross the oceans.
He took 3 ships. the Pinta the Nina and The Santa Maria.
She sat at the end of the quay, fishing and watching the boats sailing into the harbour.
A two-masted sailing ship is commonly referred to as a "sloop" or a "ketch," depending on the configuration of the sails. In a sloop, both masts are fore-and-aft rigged, while a ketch has a main mast and a shorter mizzen mast located aft. These vessels are designed for various sailing conditions and are popular for both recreational and commercial use.
The Humminbird GPS receivers I can find info on are designed for marine and fishing use - such as when sailing on the water in a boat, yacht, ship, etc.