She no longer asked for permission to accompany Brian in the small boat carrying a single light sail.
She dropped her single sail and rounded up into thewind.
Two sails can increase the sailing thrust 20% compared a single sail of same area.
The crew, those who were able, worked through the morning, trying to get up a single sail.
It was a small boat with a single sail scarcely more than a canoe.
One boat with a single white sail was tacking back and forth across the lake into the breeze.
I saw him focus on a boat which lay almost stationary beneath its single sail, fairly close to shore.
One person can handle the single sail, and it's big enough to catch a light wind at the end of the day.
With the wind full into the bows they could not hoist the single sail.
With a slight wave of his hand, Einstein steered toward the open water, a single sail raised to the wind.