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With a square rigged sail, the wind simply pushes the boat along.
With a fore and aft rigged sail, the wind is caught at an angle and slices on past the sail, pushing the sail hard down wind and a bit forward. A deep keel on the bottom of the sail boat tries to stop the downwind drift and, as a result of a bit of a push forward on the sail, the sail boat manages to scoot across the wind a bit.
Square rigged ship:
http://sailing-ships.oktett.net/golden-state.jpg
The wind just blows the boat down wind.
Fore and aft rigged sailboat (a sloop)
http://2.bp.blogspot.com/_98ZiJEAKrlI/Rql8iSS1u5I/AAAAAAAAFc4/hwyku_OY29E/s400/9%2Bsm%2Bsb%2Bpassing.jpg
Note that the sail boat is tipped over a bit (heeling). This is due to the wind trying to push the sail boat down wind and the bottom of the sail boat (the keel) trying to stop the drift down wind. The wind is slicing off the sails and pushes the sail boat a head a bit.
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Do sailboats have motors?
Yes most ones with cabins (or places to sleep on the inside) do. Sailboats have motors just in case something happens to the sail.
Do all sailboats have a steering wheel?
No. Most small sail boats have a Tiller.
When were sailboats invented?
The sail boat was invented by the ancient romansand egyptions 3000 bc
Do sailboats have engines?
Most new "sail boats" produced have engines strictly for convenience
How much does a 30 foot sail boat cost?
The cost of a 30 foot sail boat will vary depending on the condition and features of the boat. Used sailboats can be as cheap as 2,500. Newer and high end sailboats can cost anywhere upwards of $40,000.
Sailboats sail in the water because of wind?
Yes... some of us refer to it as "harnessing" the wind....
A sailboat is operating under sail at night?
A sailboat can certainly be operating under sail at night. Sailboats use their sails when there is enough wind to carry them.
Did Mesopotamia and Indus valley both use sailboats?
yes because how else would they sail on the rivers
what is the ratio of sail to boat length?
A D/L ratio is calculated by dividing a boat's displacement in long tons (2,240 pounds) by one one-hundredth of the waterline length (in feet) cubed.
Sail boats and kites use what kind of energy?
Wind motion is the type of energy used by kites and sailboats.
Why do sailboats have Boom?
A boom is used to hold the foot, or bottom of the sail. It is attached to the mast, in various ways. It is simply a pole that stretches out the bottom of the sail to obtain better performance.
Where can you buy a sail boat?
Sailboats can be bought either directly from the manufacturer - or through a certified dealer specialized on the selling of sailboats. There are even specialized pages available, like for example "YachtWorld" (used ones) or "BoatPoint".
