O'Day Swift Information, Review, Specs

O'Day Swift Drawing
Make
O'Day
Model
Swift
Builder
O'Day Corp.
Designer
Number Built
1750
Production Year(s)
1964 - 1972

The O'Day Swift represents a pivotal chapter in the mid-century American sailing boom, emerging in the early 1960s as O'Day Corp.’s direct response to the "board-boat" phenomenon popularized by the Alcort Sunfish. Designed as a portable, low-maintenance fiberglass dinghy, the Swift was engineered to be launched from a beach or a car roof, democratizing access to the water for a generation of recreational sailors. While the company eventually became known for its larger cruisers, the Swift remains a testament to George O’Day’s commitment to simplicity and entry-level accessibility. At 10 feet 4 inches, it was the smaller sibling to the more powerful O'Day Super Swift, which shared the same design language but offered increased length and sail area for larger crews.

Sailing Performance & Handling

The O'Day Swift is defined by its lateen rig, a triangular sail configuration that is exceptionally easy to rig and strike. This setup allows the boat to be remarkably forgiving for novices; the single-sheet control simplifies the physics of sailing to its most basic elements. In terms of handling, the Swift is a "wet" ride by modern standards, featuring a very low freeboard that puts the sailor close to the water's surface. Because it is a board-style boat with a shallow cockpit well, handling is heavily reliant on the sailor's weight distribution.

The boat's performance is characterized by high initial stability relative to its size, though it lacks the ultimate righting moment of a weighted keel boat. According to historical technical data from the I Heart O'Days technical wiki, the Swift’s lightweight fiberglass construction allows it to plane in moderate breezes, though it lacks the sophisticated controls found on contemporary racing skiffs. Its tracking is managed by a kick-up rudder and a daggerboard, allowing for navigation in extremely shallow waters—a key selling point for "cottage" sailors.

Known Issues & Buyer’s Checklist

Purchasing an O'Day Swift today requires a careful inspection of its structural integrity, as these boats have often spent decades exposed to the elements.

  1. Hull Weight and Water Absorption: Like many early fiberglass board-boats, the Swift often utilized internal foam flotation. Over time, if the hull's seal is compromised, this foam can absorb water, significantly increasing the boat's weight and ruining its performance. A boat that feels "heavy" for its 10-foot size is likely waterlogged.
  2. Mast Step Stress: The mast step is a high-stress point on the Swift. Buyers should check the area around the deck hole for spiderweb cracking or "oil-canning" (flexing), which indicates structural fatigue in the fiberglass laminate.
  3. Hardware Fatigue: The gudgeons and pintles (the hardware that attaches the rudder to the transom) are prone to loosening. Ensure the through-bolts have not enlarged their holes in the transom, which can lead to leaks and eventual rudder failure.
  4. Spars and Rigging: The aluminum lateen spars should be checked for corrosion, particularly where the blocks are attached. Because the rig is simple, replacements are often improvised, so ensure the sail's sleeve fits the spars correctly without excessive friction.

Community & Resources

Owners of the Swift benefit from the extensive knowledge base preserved by the O'Day Owners association. This community maintains technical forums and archives of original manufacturer brochures that are essential for restoration projects. While the Swift is no longer in production, the simplicity of its design means that many parts—such as sails and generic hardware—remain accessible through small-boat chandleries that service the lateen-rigged dinghy market.

The Verdict

The O'Day Swift is a classic "pure" sailor that offers an unfiltered connection to the wind and water. While it lacks the refinement and speed of modern dinghies, its historical significance and ease of use make it an excellent choice for casual harbor hopping or teaching children the basics of sail trim.

Pros:

  • Extreme Portability: Easily transported on a standard car roof rack.
  • Simplicity: The lateen rig can be set up in under ten minutes.
  • Draft: The daggerboard and kick-up rudder allow for beaching and shallow-water exploration.

Cons:

  • Age-Related Weight: High risk of waterlogged internal foam in older hulls.
  • Cramped Cockpit: The 10-foot hull and small footwell provide limited comfort for adult sailors.
  • Performance Ceiling: Lacks the pointing ability and speed of modern "Sloop" rigged trainers.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Daggerboard
Rudder
1x —
Ballast
-
Displacement
80 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
10.33 ft
Waterline Length (LWL)
9 ft
Beam
3.16 ft
Draft
2.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Lateen
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
44 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
37.92
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
48.99
Comfort Ratio
2.83
Capsize Screening Formula
2.93
Hull Speed
4.02 kn