Review of Cordouan 41
Basic specs.
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The boat is equipped with 2 cabins, 530.0 liter fresh water capacity and toilet facility.
The Cordouan 41 has been built with different keel alternatives.
Unknown keel type
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.
Unknown keel type
Cordouan 41 can only enter major marinas as the draft is about 1.80 - 1.90 meter (5.91 - 6.21 ft) dependent on the load. See immersion rate below.
The boat is typically equipped with an inboard Perkins 4.108 M diesel engine at 50 hp (37 kW). Calculated max speed is about 7.3 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 330.0 liters (87 US gallons, 72 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 Cordouan 41 is 1.92, 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 7.5 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 Cordouan 41 is about 239 kg/cm, alternatively 1339 lbs/inch.
Meaning: if you load 239 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1339 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 Cordouan 41 is 26.4.
What is L/B (Length Beam Ratio)?
The l/b ratio for Cordouan 41 is 3.36.
What is Displacement Length Ratio?
The DL-ratio for Cordouan 41 is 236 which categorizes this boat among 'light crusers & offshore racers'.
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 44m2 (473 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 | 12.5 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) |
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