Northstar Keel

The Northstar keel was constructed of built as a carbon beam, and faired with a foam and carbon foil.

The righting moment provided by the keel was not enough to keep the boat horizontal, leading to the creation of a new keel and eventual modification of the hull.

Good Design Features

 * roughly correct amount of lateral resistance
 * low drag from foil
 * low drag from bulb

Poor Design Features

 * not enough righting moment
 * poor join between beam and foil, admits and holds water