The Fatty Knees fibreglass sailing dinghies were designed by Lyle Hess[1] (1912–2002).
Primarily designed as a yacht tender with good rowing and towing characteristics, the boat can be sailed, with enough width in the beam to provide stability.
The thwarts and dagger-board trunk are fiberglass inserts glassed into the hull and are watertight.
A small outboard motor can be mounted to port.
Sailing gear is designed to be stored inside the hull.