mainsail

What they saw was the yacht Eagle, not far from the bluff, under full mainsail, standing out of the cove.

Moreover, although she carried an enormous club-topsail and a mainsail of big area, she heeled over the least of any of the boats.

Then he proceeded to untie the stops in the mainsail, and was thus engaged when a voice hailed him from the shore.

The size of the jib is also influenced by the fact that it has to balance the equally enormous mainsail.

In reefing the mainsail is accessible, and the absence of the long boom of the cat-boat is readily appreciated.