Review of Seafarer 23 Kestrel
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.
CentreBoard
The Seafarer 23 Kestrel is equipped with a centreboard keel. A centreboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.
The boat can enter even shallow marinas as the draft is just about 0.71 - 0.81 meter (2.33 - 2.63 ft) dependent on the load. See immersion rate below.
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 Seafarer 23 Kestrel is 1.81, 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 5.4 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 Seafarer 23 Kestrel is about 71 kg/cm, alternatively 401 lbs/inch.
Meaning: if you load 71 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 401 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 Seafarer 23 Kestrel is 23.1.
What is L/B (Length Beam Ratio)?
The l/b ratio for Seafarer 23 Kestrel is 3.30.
The ballast ratio for Seafarer 23 Kestrel is 38%.
What is Displacement Length Ratio?
The DL-ratio for Seafarer 23 Kestrel is 367 which categorizes this boat among 'heavy cruisers'.
Maintenance
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 | 7.0 m | (23.1 feet) | 10 mm | (3/8 inch) |
| Genoa sheet | 7.0 m | (23.1 feet) | 10 mm | (3/8 inch) |
| Mainsheet | 17.6 m | (57.7 feet) | 10 mm | (3/8 inch) |
| Spinnaker sheet | 15.5 m | (50.7 feet) | 10 mm | (3/8 inch) |
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