Design and Construction
The hull is fiberglass, with a fin keel and a rudder mounted on a skeg. The ballast-to-displacement ratio sits at 46 percent and the displacement-length ratio at 228.84, figures that place her firmly in the moderate-displacement racer class rather than the featherweight end of the spectrum. Her sail-area-to-displacement ratio of 16.39, paired with an oversized rig on a masthead-sloop layout, signals a boat tuned for pace under canvas rather than ponderous cruising comfort. Irwin Yachts, founded by Ted Irwin in 1966, built the model as a dedicated competition design from the designer's own board.
Rig and Handling
Writing in Sailboat Review of the Irwin 30 Competition, the reviewer describes her as built with an oversized rig on the standard masthead sloop, and one owner's example, the Argo, carries a tall rig with tiller steering, a stack pack for the main, and self-tailing winches. Owners report that the boat sails smooth and very fast, is balanced very well and easy to control, and turns on a dime. The Atomic 4 gasoline engine fitted to the Argo is reported as more than enough power to get you out of any bind you find yourself in. With 474 square feet of reported sail area and a hull speed near seven knots, the design rewards an attentive helm without demanding a large crew.
Accommodations
Below, the Argo shows how the racing shell hides a workable dayboat interior. The salon has a fold-out table that can feed six people, and the two settee berths double as single beds with storage under and behind them. The v-berth forward sleeps one comfortably or two if closely acquainted, with drawers and cubbies for stowage, and a hanging closet sits beside the head and v-berth. A quarter berth aft takes one sleeper or becomes a large storage bay. The galley holds a two-burner alcohol stove, sink, icebox, and a 120-volt fridge, with plenty of storage reported. The head is fitted with a flushing toilet and sink.
Known Issues
One documented ownership report concerns the small gray water tank of two gallons, which has no pump-out and must be detached in the cabin and carried by hand to a dump point. This is a practical nuisance rather than a structural defect, but it bears directly on liveaboard or daysailing convenience.
Refits and Ownership
The Argo illustrates typical owner-era equipment: a GPS chartplotter and backlit gimbaled compass for navigation, tiller in place of wheel, and the mainsail stack-pack system with self-tailing winches for simplified shorthanded sail handling. The Universal Atomic 4 remains the noted power plant. Buyers and owners should expect period-correct systems needing survey and possibly modernization, though the shell itself is straightforward fiberglass.
The Verdict
The Irwin 30 Competition is a purpose-built racer with enough creature comfort to serve as a daysailer, wearing her Ted Irwin pedigree lightly and rewarding an active helm. The gray-water handling quirk is the one documented knock against easy use.
Pros
- True racing design with oversized masthead rig and quick, balanced handling
- Surprising belowdecks comfort for a 30-foot racer, sleeps several with clever storage
- Solid fiberglass hull from a known Florida builder, 46 percent ballast ratio
Cons
- Gray water tank cannot be pumped out and must be hand-carried for disposal
- Gasoline Atomic 4 and period systems may require updating for modern use






