WING SHAPE CAUSES PRESSURE DIFFERENCE
The top side of the dagger-board profile is curved like a plane wing. The water flows faster on the top side than on the lower side of the daggerboard, producing a pressure difference that lifts the boat.
The top side of the dagger-board profile is curved like a plane wing. The water flows faster on the top side than on the lower side of the daggerboard, producing a pressure difference that lifts the boat.