What is the fixed height above the waterline when the mast is raised?

What is the fixed height above the waterline when the mast is raised?

• A. 8 feet 10-3/4 inches
• B. 12 feet 0-1/2 inches
• C. 5 feet 6 inches
• D. 7 feet 2 inches

Answer: (A)

The main idea is air draft—the distance from the waterline to the highest point of the boat when the mast is raised. This fixed height is what you’d use to check clearance under bridges or power lines. For this vessel, the mast raised puts the top about 8 feet 10-3/4 inches above the waterline. That matches the boat’s mast length and rigging when the mast is up, giving you the exact height you’d need for planning passages. The other numbers don’t reflect this boat’s actual mast height, so they wouldn’t provide a safe or accurate clearance reference.

The main idea is air draft—the distance from the waterline to the highest point of the boat when the mast is raised. This fixed height is what you’d use to check clearance under bridges or power lines.

For this vessel, the mast raised puts the top about 8 feet 10-3/4 inches above the waterline. That matches the boat’s mast length and rigging when the mast is up, giving you the exact height you’d need for planning passages.

The other numbers don’t reflect this boat’s actual mast height, so they wouldn’t provide a safe or accurate clearance reference.