A sailboat without a sail is but a hull of itself.
round bottom hull
A round hull.
To determine the hull speed of a sailboat, multiply the square root of the length at the water line by 1.34. The answer will be in nautical miles per hour.
That depends on what length Sunfish you are referring to.
The hull of a boat is the body of the boat. it is the part of the boat in the water. excluding the mast, boom, sail, rudder, keel, etc.
A sailboat will have positive buoyancy if the weight of the boat is less than the weight of the water it takes the place of. The weight of the water that is being occupied by the hull is displacement.
Round Bottom hull
flat bottom hull
The wind is what causes a sailboat to sail.
The Hughes plant burned down in 1991, I understand with all molds.
A rough estimate of hull speed in knots is 1.34 times the square root of the length at the waterline in feet. The Catalina 22 has a 19 foot waterline, leading to an estimated hull speed of 5.8 knots