Review of Scanmar 40
Basic specs.
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Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.
The deck is a double deck which improves the indoor climate.
The boat is equipped with 6 berths, a galley and 400.0 liter fresh water capacity.
The Scanmar 40 is equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.
The Scanmar 40 has been built with different keel alternatives.
Fin keel
One option is a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
The boat can enter most marinas as the draft is just about 1.50 - 1.60 meter (4.92 - 5.22 ft) dependent on the load. See immersion rate below.
Fin keel
Another option is a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
Scanmar 40 can only enter major marinas as the draft is about 2.00 - 2.10 meter (6.56 - 6.86 ft) dependent on the load. See immersion rate below.
The Scanmar 40 has been equipped with different engine alternatives.
Alternative 1:
The boat may be equipped with an inboard Volvo Penta 2003 T diesel engine at 43 hp (32 kW). Calculated max speed is about 7.0 knots
Alternative 2:
The boat may be equipped with an inboard Volvo Penta engine
The fuel tank has a capacity of 150.0 liters (39 US gallons, 32 imperial gallons).
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 Capsize Screening Formula (CSF)?
The capsize screening value for Scanmar 40 is 1.98, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 7.8 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.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Scanmar 40 is about 268 kg/cm, alternatively 1502 lbs/inch.
Meaning: if you load 268 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1502 lbs cargo on the boat it will sink 1 inch.
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.
What is Motion Comfort Ratio (MCR)?
The Motion Comfort Ratio for Scanmar 40 is 24.1.
What is L/B (Length Beam Ratio)?
The l/b ratio for Scanmar 40 is 3.18.
The ballast ratio for Scanmar 40 is 49%.
What is Displacement Length Ratio?
The DL-ratio for Scanmar 40 is 185 which categorizes this boat among 'light racers'.
What is Relative Speed Performance?
The Relative Speed Performance for Scanmar 40 is 58
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 42m2 (452 ft2).
Based on this, your favourite maritime shop can tell you the quantity you need.
Note: If you use a paint roller you will need more paint than if you use a paintbrush.
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 | 12.2 m | (40.2 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 12.2 m | (40.2 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 30.6 m | (100.4 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 26.9 m | (88.3 feet) | 14 mm | (0.55 inch) |
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