I have sailed a 29' Dragon & found it to be quite stable. Fast, too!
some sail boats have moters onley big sail boats have moters not small ones
boats is the answer to your question
By using a sail and at last resort a mortar
There are sail planes, sail boats, sail cars, and with a spaceship you could sail to the stars.
The Vikings' boats had one sail because they also had oars with which to row.
Bays
Water
Caravels
Fairly
row boat, paddle boat, motor boat, sail boat, cargo boat, speed boat, and fishing boat
The junk boats were sailed around the coastlines of China.
Float