Foil Design

The foil design was carried out in a similar way to the hull design. The current ideas were studied and small improvements were made.

5.1 Section Choice.

The foils sections are Tom Spears H105 sections. The horizontal foils are cambered 4% (need to check this) and the vertical foil has no camber. This section was chosen over NACA 64 012 series sections because it has been optimised for use as a hydrofoil. Pressure peaks have been smoothed out so the foil is less likely to ventilate. A second bonus is the drag is less for the same thickness of foil. This allows stronger structures of the same drag to be made.