Review of Tartan 41 Mk II
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 454.0 liter fresh water capacity.
The Tartan 41 Mk II has been built with different keel alternatives.
Unknown keel type
The boat can enter most marinas as the draft is just about 1.55 - 1.65 meter (5.09 - 5.39 ft) dependent on the load. See immersion rate below.
Unknown keel type
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.
Tartan 41 Mk II can only enter major marinas as the draft is about 2.29 - 2.39 meter (7.51 - 7.81 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 Tartan 41 Mk II 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 Tartan 41 Mk II is about 247 kg/cm, alternatively 1387 lbs/inch.
Meaning: if you load 247 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1387 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 Tartan 41 Mk II is 28.2.
What is L/B (Length Beam Ratio)?
The l/b ratio for Tartan 41 Mk II is 3.21.
The ballast ratio for Tartan 41 Mk II is 43%.
What is Displacement Length Ratio?
The DL-ratio for Tartan 41 Mk II is 265 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 39m2 (419 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 | 12.4 m | (40.6 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 12.4 m | (40.6 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 31.0 m | (101.5 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 27.2 m | (89.4 feet) | 14 mm | (0.55 inch) |
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