Irwin 40 Citation Sailboat Review, Specs, and Listings

Ted Irwin·1978·Irwin Yachts
Approximate drawing

Hover a measurement to read its value

Hull Type
Monohull · fin
Rig
Masthead Sloop
LOA
40.83' · 12.44 m
Disp.
16,890 lbs · 7,661 kg
First year
1978

The Irwin 40 Citation stands as a substantial late1970s cruiserracer from Ted Irwin's drawing board, built by the American yard Irwin Yacht & Marine Corp. as a fiberglass monohull of just over 40 feet on deck. Conceived in the late seventies, she reflects a deliberate step toward a slightly quicker hull form than the heavier cruising ballast of the era while retaining the volume a sailing family expects.

Measurements

Dimensions 01

Length Overall
40.83 ft
Length on deck
Waterline Length
31.17 ft
Beam
12.17 ft
Draft
6.3 ft
Maximum Headroom
Air Draft

Construction & hull 02

Construction
Fiberglass
Hull Type
Monohull
Keel Type
Fin
Rudder
1× Skeg-Hung
Ballast
(Lead)
Displacement
16,890 lbs
Water Capacity
90 gal
Fuel Capacity
40 gal

Rig & sails 03

Rigging Type
Masthead Sloop
Mainsail luff
44 ft
Mainsail foot
14.8 ft
Foretriangle height
50 ft
Foretriangle base
16.5 ft
Forestay Length (estimated)
52.65 ft
Sail Area
738 sqft

Calculations 04

Sail Area to Displacement Ratio
17.93
Ballast to Displacement Ratio
Displacement to Length Ratio
248.98
Comfort Ratio
27.47
Capsize Screening Ratio
1.9
Hull Speed
7.48 kn

Design and Construction

The Citation's fiberglass hull carries the chief practical virtue of the material: only minimal upkeep through a sailing season. At a length-to-beam ratio of 3.35 she is slimmer than 54 percent of comparable designs, and her displacement-length ratio of 256 places her among what reviewers term "moderate racers," with half of all similar designs rated heavier. Ted Irwin clearly chose a slightly more speedy hull design rather than a sluggish coastal tub. The wetted surface runs about 387 square feet, and the immersion rate of 1,322 pounds per inch gives a tangible sense of how she loads.

Keel and Performance Profile

Buyers could specify different keel alternatives. The fin keel is the most common and delivers splendid maneuverability, though it surrenders some directional stability to a long-keel form. A stub/centerboard version pairs a fixed stub with a retractable board, letting the boat gunkhole into shallow marinas at a draft of just 4.27 to 4.57 feet depending on load. Her capsize screening value of 1.88 would, by that formula alone, admit her to ocean racing, and the Motion Comfort Ratio of 28.1 beats 42 percent of similar sailboats for ride quality. Theoretical hull speed is 7.5 knots.

Rig and Sail Handling

The Citation is a masthead sloop, a rig prized for simplicity and for carrying a given sail area lower than a fractional rig, which reduces heeling moment. With the ISO reference sail her sail-area-to-displacement ratio is 17.6, rising to 21.0 with a 135 percent genoa; that spread makes her quicker than 54 percent of similar designs in light wind. The standing and running rigging dimensions are generous for the size: all three halyards run 114.3 feet at half-inch diameter, sheets run 40.8 feet at 0.55 inch, and the mainsheet is a 102-foot, 0.55-inch line.

Accommodations and Layout

The Citation is a large sailboat built for cruising, with 90-gallon water and 40-gallon fuel capacities that speak to extended coastal use rather than weekend racing only. The stub/centerboard keel option broadens where she can lie alongside at low draft.

The Verdict

The Irwin 40 Citation is a thoughtfully proportioned late-seventies design that balances a moderately racy, slender hull with genuine cruising tankage and a keel choice for either maneuverability or shoal draft. She is not a blue-water specialist by rig alone, but her numbers place her competently among similar vessels.

Pros

  • Slender, moderately racy hull quicker than half of comparable designs in light air
  • Fin keel for maneuverability or stub/centerboard for 4.3-foot shoal draft
  • Low-maintenance fiberglass hull with 90-gallon water capacity

Cons

  • Fin keel gives less directional stability than a long keel
  • Motion Comfort Ratio better than only 42 percent of similar designs

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