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Review of X-412




Basic specs.

sail specifications
The X-412 is a large sailboat designed by the maritime architect Niels Jeppesen in the early nineties. A few hundred boats have been produced. The X-412 is built by the Danish yard X-Yachts A/S.

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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.
The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.


Interior

The interior is like most other boats made of teak. Teak has the advantage of being naturally very oily and therefore water-repellent, which is suitable on boats.
The boat is equipped with 3 cabins, 6 - 7 berths, a galley and toilet facility.


Rig
Rig
X-412 anno 2001 with spinnaker. Als rundt 10 min efter, 2004

The boat has more than one rig.

One option is a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.


Keel

The X-412 has been built with different keel alternatives.

Unknown keel type

X-412 can only enter major marinas as the draft is about 2.11 - 2.21 meter (6.92 - 7.22 ft) dependent on the load. See immersion rate below.

Unknown keel type

The boat can only enter major marinas as the draft is about 2.20 - 2.30 meter (7.22 - 7.52 ft) dependent on the load. See immersion rate below.


Engine

The X-412 has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with an inboard Volvo Penta diesel engine

Alternative 2:

X-412 may be equipped with an inboard diesel engine at 39 hp (29 kW).


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 X-412 is 2.02, indicating that this boat would not be accepted to participate in ocean races.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for X-412 is about 327 kg/cm, alternatively 1831 lbs/inch.
Meaning: if you load 327 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1831 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for X-412 is 3.21.

Slim Wide 62% 0 50 100
Compared with other similar sailboats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.


Maintenance

Rig

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
Masthead rig
UsageLengthDiameter
Jib sheet 12.5 m(41.1 feet)14 mm(0.55 inch)
Genoa sheet12.5 m(41.1 feet)14 mm(0.55 inch)
Mainsheet 31.3 m(102.7 feet)14 mm(0.55 inch)
Spinnaker sheet27.5 m(90.4 feet)14 mm(0.55 inch)
Masthead rig
UsageLengthDiameter
Mainsail halyard 37.5 m(123.0 feet)12 mm(1/2 inch)
Jib/genoa halyard37.5 m(123.0 feet)12 mm(1/2 inch)
Spinnaker halyard37.5 m(123.0 feet)12 mm(1/2 inch)
Jib sheet 12.5 m(41.1 feet)14 mm(0.55 inch)
Genoa sheet12.5 m(41.1 feet)14 mm(0.55 inch)
Mainsheet 31.3 m(102.7 feet)14 mm(0.55 inch)
Spinnaker sheet27.5 m(90.4 feet)14 mm(0.55 inch)
Cunningham4.7 m(15.4 feet)12 mm(1/2 inch)
Kickingstrap9.4 m(30.8 feet)12 mm(1/2 inch)
Clew-outhaul9.4 m(30.8 feet)12 mm(1/2 inch)

Boat owner's ideas

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

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Finally

We are always looking for new photos. If you can contribute with photos for X-412 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