Ship’s primary canvas

The answer to the crossword question “Ship’s primary canvas” is MAINSAIL. The mainsail is a crucial sail for any sailing vessel, as it is the largest and most important sail on the main mast of the ship. This sail is used to catch the wind and propel the ship forward, making it an essential component for any ship to navigate and reach its destination. The mainsail is typically rectangular in shape and is attached to the mast and boom, allowing it to be adjusted as needed to catch the wind and create the necessary power to move the ship. Overall, the mainsail is a critical component of any ship, and its proper use and maintenance are essential for any successful voyage.