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Review of Diamant 3000


Basic specs.

sail specifications
The Diamant 3000 is a sailboat designed by the Danish maritime architect Jan Kjærulff in the late eighties. The Diamant 3000 is built by the German yard Ott Yacht GmbH.

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Hull
The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

Rig
The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.

Keel

The Diamant 3000 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 long keel.

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 1.65 - 1.75 meter (5.41 - 5.71 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Diamant 3000 is 1.79, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 7.0 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.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Diamant 3000 is about 139 kg/cm, alternatively 778 lbs/inch.
Meaning: if you load 139 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 778 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Diamant 3000 is 19.6.

Low High 18% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 18% of all similar sailboat designs. This is a comfort value significantly below average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Diamant 3000 is 4.16.

Wide Slim 99% 0 50 100
Compared with other similar sailboats it is slimmer than 99% of all other designs. It seems that the designer has chosen a significantly more speedy hull design. This type of design is also referred to as 'needle'.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Diamant 3000 is 136 which categorizes this boat among 'ultra light racers'.

Heavy Light 90% 0 50 100
90% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.


SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Diamant 3000 with ISO 8666 reference sail is 27.2, with a 135% genua the SA/D is 31.1.

Low High 100% 0 50 100
The SA/D ratio indicates that it is faster than 100% of all similar sailboat designs in light wind.


Maintenance

Bottom Paint

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.


Rig

Dimensions of sail for fractional rig.

mainsail specifications headsail specifications

Are your sails worn out? You might find your next sail here: Sails for Sale



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.



Guiding dimensions of running rig
UsageLengthDiameter
Mainsail halyard 36.3 m(119.1 feet)10 mm(3/8 inch)
Jib/genoa halyard36.3 m(119.1 feet)10 mm(3/8 inch)
Spinnaker halyard36.3 m(119.1 feet)10 mm(3/8 inch)
Jib sheet 10.4 m(34.1 feet)12 mm(1/2 inch)
Genoa sheet10.4 m(34.1 feet)12 mm(1/2 inch)
Mainsheet 26.0 m(85.2 feet)12 mm(1/2 inch)
Spinnaker sheet22.9 m(75.0 feet)12 mm(1/2 inch)
Cunningham4.5 m(14.6 feet)10 mm(3/8 inch)
Kickingstrap8.9 m(29.2 feet)10 mm(3/8 inch)
Clew-outhaul8.9 m(29.2 feet)10 mm(3/8 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what to look for.



Finally

We are always looking for new photos. If you can contribute with photos for Diamant 3000 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.



References