Review of Irwin 41
Basic specs.
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The hull is made of fibreglass. A hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The Irwin 41 is built with a ketch rig. A ketch rig is generally considered easier to handle, because the sails are smaller, and because it can sail on most points to the wind with one sail completely taken down for repair or while reefing. The sail configuration of a ketch allows for better comfort and stability when sailing downwind or on a broad reach.
The Irwin 41 has been built with different keel alternatives.
Stub/CentreBoard
One option is a stub/centreboard keel. A stub/centerboard keel is a fixed stub keel with a retractable centerboard, allowing to sail both coastal and inland waters.
The boat can enter even shallow marinas as the draft is just about 1.37 - 1.47 meter (4.49 - 4.79 ft) dependent on the load.
Fin keel
Another option is a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.
The boat can only enter major marinas as the draft is about 1.98 - 2.08 meter (6.50 - 6.80 ft) dependent on the load.
Fin keel
Yet another option is a fin keel.
Irwin 41 can enter even shallow marinas as the draft is just about 1.37 - 1.47 meter (4.49 - 4.79 ft) dependent on the load.
The boat may be equipped with an inboard Perkins 4.154 diesel engine at 62 hp (46 kW).
Sailing characteristics
This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 7.9 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.
Sailing statistics
This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.
Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.
Maintenance
Dimensions of sail for ketch rig.
Are your sails worn out? You might find your next sail here: Sails for Sale
If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.
| Usage | Length | Diameter | ||
| Jib sheet | 12.5 m | (41.0 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 12.5 m | (41.0 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 31.2 m | (102.5 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 27.5 m | (90.2 feet) | 14 mm | (0.55 inch) |
Keels with moving parts need to be inspected and maintained on a regular basis according to advice given in owner's manual. Manufacturers usually advise which maintenance work can be done by the owner and which work should be carried out by a suitably experienced boatyard.
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