The Irwin 31 is a 31.08ft masthead sloop designed by Ted Irwin and built in fiberglass by Irwin Yachts since 1968.
The Irwin 31 is a heavy sailboat which is slightly under powered. It is stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is originally small. There is a short water supply range.
Main features
| Model | Irwin 31 | ||
| Length | 31.08 ft | ||
| Beam | 9.58 ft | ||
| Draft | 3.33 ft | ||
| Country | United states (North America) | ||
| Estimated price | $ 0 | ?? |
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Ratios
| Sail area / displ. | 15.92 | ||
| Ballast / displ. | 39.58 % | ||
| Displ. / length | 389.07 | ||
| Comfort ratio | 29.37 | ||
| Capsize | 1.81 |
Hull
| Hull type | Monohull keel with centerboard | ||
| Construction | Fiberglass | ||
| Waterline length | 22.25 ft | ||
| Maximum draft | 7.50 ft | ||
| Displacement | 9600 lbs | ||
| Ballast | 3800 lbs | ||
| Hull speed | 6.32 knots |
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Rigging
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 448 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 223.85 sq.ft | ||
| Sail area main | 224 sq.ft | ||
| I | 37 ft | ||
| J | 12.10 ft | ||
| P | 32 ft | ||
| E | 14 ft |
Engine
| Nb engines | 1 | ||
| Total power | 25 HP | ||
| Fuel capacity | 25 gals |
Accommodations
| Water capacity | 50 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 |
Builder data
| Builder | Irwin Yachts | ||
| Designer | Ted Irwin | ||
| First built | 1968 | ||
| Last built | 0 | ?? | |
| Number built | 0 | ?? |
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