Review of Malö 40 H
Basic specs.
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The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.
The boat is equipped with 2 cabins, 6 berths and 200.0 liter fresh water capacity.
The Malö 40 H 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.
Fin keel
The Malö 40 H is equipped with 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 keel is made of iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated. As the surface of a fin type keel is just a fraction of the total wet surface, the difference between an iron keel and a lead keel can in reality be ignored for cruising yachts.
The boat can enter even shallow marinas as the draft is just about 1.35 - 1.45 meter (4.43 - 4.73 ft) dependent on the load. See immersion rate below.
Malö 40 H may be equipped with an inboard Volvo Penta MD17C diesel engine at 35 hp (26 kW). Calculated max speed is about 6.7 knots
The transmission is a shaft drive. A shaft drive will in the long run require less maintenance than other types of drive e.g. a sail drive.
The fuel tank has a capacity of 200.0 liters (52 US gallons, 43 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 Malö 40 H is 1.74, 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 7.1 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 Malö 40 H is about 173 kg/cm, alternatively 972 lbs/inch.
Meaning: if you load 173 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 972 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 Malö 40 H is 29.9.
What is L/B (Length Beam Ratio)?
The l/b ratio for Malö 40 H is 3.13.
The ballast ratio for Malö 40 H is 36%.
What is Displacement Length Ratio?
The DL-ratio for Malö 40 H is 249 which categorizes this boat among 'light crusers & offshore racers'.
What is SA/D (Sail Area Displacement ratio)?
The SA/D for Malö 40 H with ISO 8666 reference sail is 13.9, with a 135% genua the SA/D is 16.6.
What is Relative Speed Performance?
The Relative Speed Performance for Malö 40 H is 12
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 28m2 (301 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.
Dimensions of sail for masthead 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 | ||
| Mainsail halyard | 29.6 m | (96.9 feet) | 10 mm | (3/8 inch) |
| Jib/genoa halyard | 29.6 m | (96.9 feet) | 10 mm | (3/8 inch) |
| Spinnaker halyard | 29.6 m | (96.9 feet) | 10 mm | (3/8 inch) |
| Jib sheet | 9.6 m | (31.3 feet) | 12 mm | (1/2 inch) |
| Genoa sheet | 9.6 m | (31.3 feet) | 12 mm | (1/2 inch) |
| Mainsheet | 23.9 m | (78.3 feet) | 12 mm | (1/2 inch) |
| Spinnaker sheet | 21.0 m | (68.9 feet) | 12 mm | (1/2 inch) |
| Cunningham | 3.5 m | (11.5 feet) | 10 mm | (3/8 inch) |
| Kickingstrap | 7.0 m | (23.0 feet) | 10 mm | (3/8 inch) |
| Clew-outhaul | 7.0 m | (23.0 feet) | 10 mm | (3/8 inch) |
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