Review of Swan 38
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.
The boat is equipped with 215.0 liter fresh water capacity.
Fin keel
The Swan 38 is equipped with 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 boat can only enter major marinas as the draft is about 2.01 - 2.11 meter (6.59 - 6.89 ft) dependent on the load. See immersion rate below.
The Swan 38 has been equipped with different engine alternatives.
Alternative 1:
Swan 38 may be equipped with an inboard Volvo Penta 2003 T diesel engine at 42 hp (31 kW). Calculated max speed is about 6.0 knots
Alternative 2:
The boat may be equipped with an inboard Bukh DV20ME diesel engine at 20 hp (14 kW). Calculated max speed is about 4.2 knots
The fuel tank has a capacity of 112.0 liters (29 US gallons, 24 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 Swan 38 is 1.75, 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 7.2 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 Swan 38 is about 206 kg/cm, alternatively 1155 lbs/inch.
Meaning: if you load 206 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1155 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 Swan 38 is 34.2.
What is L/B (Length Beam Ratio)?
The l/b ratio for Swan 38 is 3.31.
The ballast ratio for Swan 38 is 39%.
What is Displacement Length Ratio?
The DL-ratio for Swan 38 is 345 which categorizes this boat among 'heavy cruisers'.
What is Relative Speed Performance?
The Relative Speed Performance for Swan 38 is 27
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 36m2 (387 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 | 11.7 m | (38.3 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 11.7 m | (38.3 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 29.1 m | (95.6 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 25.7 m | (84.2 feet) | 14 mm | (0.55 inch) |
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