The Hinterhoeller F3 (or F 3) is a Canadian sailboat that was designed by Argentine naval architect Germán Frers as a racer-cruiser and first built in 1981.
It has a masthead sloop rig with running backstays and aluminum spars, a raked stem, a raised sharp reverse transom, an internally mounted spade-type rudder controlled by a wheel and a fixed fin keel.
The design incorporates features of the International Offshore Rule (IOR), without completely complying with it.
[1] The boat is fitted with a Westerbeke 27 or 29 hp (20 or 22 kW) diesel engine for docking and maneuvering.
The galley has foot-pumped water and a three-burner propane-fuelled stove, with a refrigerator optional.
[3] In a 1994 review Richard Sherwood wrote, "this boat has been designed for both racing and cruising.