Design and Construction
George Olson was a Santa Cruz-based designer and builder who is a pioneer in ultralight displacement boats (ULDBs) from the Santa Cruz scene, and the Olson 40 reflects that lineage in its emphasis on lightweight construction anchor. The hull is solid fiberglass, carrying a displacement of 10,350 pounds with 5,500 pounds of lead ballast — a ballast-to-displacement ratio near 53 percent that speaks to a stiff, purposeful platform rather than a featherweight toy. A fin keel with spade rudder underpins the layout, and the 36-foot waterline on a 40-foot-3-inch overall length gives the hull a long, lean run for its rating.
Rig and Handling
The boat carries a masthead sloop rig, and the sailplan was not frozen across the build cycle — mast position was adjusted on some boats to tune balance anchor. With a 720-square-foot working sail area and a sail-area-to-displacement ratio around 24, the Olson 40 is renowned for excellent performance, being fast and responsive in moderate winds. She points well upwind and carries strong downwind surfing potential, traits that earned her seaworthiness credibility for a light-displacement hull in events such as the Transpac. Owners praise her balance, stiffness, and fun factor, and many describe the boat as a "big pussycat" that is rewarding to sail singlehanded or with crew anchor.
Accommodations
Below, the Olson 40 keeps to a practical racer-cruiser brief with a forward V-berth, settee seating, a working galley, a head, and stowage suited to coastal or offshore use. The arrangement favors function over volume, consistent with a design whose first loyalty is speed rather than salon square footage.
Known Issues
The principal caveat is a wet ride in heavy conditions, a consequence of low freeboard and an open transom-like feel that lets water come aboard more readily than on a higher-sided cruiser anchor.
The Verdict
The Olson 40 is a focused expression of Santa Cruz ULDB thinking in a 40-foot package — rare, quick, and genuinely enjoyable to handle, but unapologetically wet when the weather turns. For a sailor who values responsiveness and a proven offshore record over interior volume, she remains a compelling used-market prospect.
Pros
- Fast and responsive in moderate winds with good upwind pointing
- Strong downwind surfing potential and Transpac-proven seaworthiness for her type
- Owner-praised balance, stiffness, and singlehanded-friendly character
Cons
- Can be wet in heavy conditions due to low freeboard and open transom-like feel
- Only 30 built, so finding one requires patience






