The CR 310 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 CR 310 is equipped with a L keel. The keel is an L-shape and therefore less exposed to seaweed, fishing nets and lines.
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.
The boat can enter most marinas as the draft is just about 1.60 - 1.70 meter (5.25 - 5.55 ft) dependent on the load. See immersion rate below.
CR 310 is typically equipped with an inboard Volvo MD2030 diesel engine at 28.0 hp (20 kW), which gives a max speed about 6.5 knots.
The transmission is a saildrive.
The fuel tank has a capacity of 60.0 liters (15 US gallons, 13 imperial gallons).
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 CR 310 is 1.87, 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 6.7 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 CR 310 is about 153 kg/cm, alternatively 857 lbs/inch.
Meaning: if you load 153 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 857 lbs cargo on the boat it will sink 1 inch.
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 CR 310 is 25.2.
What is L/B (Length Beam Ratio)?
The l/b ratio for CR 310 is 3.15.
The ballast ratio for CR 310 is 42%.
What is Displacement Length Ratio?
The DL-ratio for CR 310 is 264 which categorizes this boat among 'light crusers & offshore racers'.
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 26m2 (279 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 | 9.4 m | (31.0 feet) | 12 mm | (1/2 inch) |
Genoa sheet | 9.4 m | (31.0 feet) | 12 mm | (1/2 inch) |
Mainsheet | 23.6 m | (77.5 feet) | 12 mm | (1/2 inch) |
Spinnaker sheet | 20.8 m | (68.2 feet) | 12 mm | (1/2 inch) |
This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.
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