Jib or trysail.
The jibsail or spinnaker sail.
The most forward sail is normally called a jib.On vessels with more than one jib, the names of the jibs (from forward to aft) are: Flying jib, Outer jib, Inner jib and Fore (topmast) staysail.
it is called a flying jib
mainsail
A sail works like an aerofoil. Depending on the point of sailing it pulls the vessel along much more than it pushes it.
A downwind sail, such as a spinnaker or a genoa, typically travels the furthest because it is designed to catch wind from behind the boat and harness the wind's energy to propel the boat forward efficiently in downwind conditions.
A jib is a small triangular sail.
Spinnaker is a nine-letter word for "triangular sail."
When the motorized vessel is a commercial vessel or when the motorized vessel has another vessel or person in tow.
It is called the lateen sail.
a ship with triangular sails that allowed it to sail into the wind and with square sails that carried it forward when the wind was at it's back.