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Review of X-342


X-342
X-342. INTERNATIONAL ALASSIO RACE

Basic specs.

sail specifications
The X-342 is a sailboat designed by the maritime architect Niels Jeppesen in the late eighties. A few hundred boats have been produced. The X-342 is built by the Danish yard X-Yachts A/S.

Looking for a new boat? Find a X-342 or similar boat for sale

Hull

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


Interior

The interior is like many other boats made of mahogany. Mahogany belongs to the hardwood species, known for being water-repellent and resistant to decay. It has an attractive wood grain and holds wood polish and varnish well.
The boat is equipped with 3 cabins, 6 berths, a galley, 120.0 liter fresh water capacity and toilet facility.


Rig

The boat has more than one rig.

One option is 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.

Another 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-342 has been built with different keels.

Fin keel

The X-342 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 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.

X-342 can only enter major marinas as the draft is about 1.90 - 2.00 meter (6.23 - 6.53 ft) dependent on the load. See immersion rate below.

Unknown keel type

The keel is also made of lead.

The boat can only enter major marinas as the draft is about 1.85 - 1.95 meter (6.07 - 6.37 ft) dependent on the load. See immersion rate below.


Engine

The boat is typically equipped with an inboard Volvo Penta 2002 diesel engine at 18.0 hp (13 kW), which gives a max speed about 5.3 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 which is made of stainless steel has a capacity of 60.0 liters (15 US gallons, 13 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for X-342 is 2.03, indicating that this boat would not 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 6.9 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 X-342 is about 176 kg/cm, alternatively 987 lbs/inch.
Meaning: if you load 176 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 987 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 X-342 is 21.2.

Low High 27% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 27% of all similar sailboat designs. This comfort value is just below average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for X-342 is 3.15.

Slim Wide 58% 0 50 100
Compared with other similar sailboats it is more spacy than 58% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for X-342 is 46%.

Low High 76% 0 50 100
This ballast ratio shows a righting moment that is higher than 76% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for X-342 is 220 which categorizes this boat among 'light crusers & offshore racers'.

Heavy Light 62% 0 50 100
62% 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 X-342 with ISO 8666 reference sail is 18.3, with a 135% genua the SA/D is 21.8.

Low High 73% 0 50 100
The SA/D ratio indicates that it is faster than 73% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 50% 0 50 100
The X-342 has more rig than 50% of all similar sailboats, which indicates that this rig is spot on average!


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 31m2 (333 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 masthead 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
Masthead rig
UsageLengthDiameter
Mainsail halyard 29.8 m(97.8 feet)10 mm(3/8 inch)
Jib/genoa halyard29.8 m(97.8 feet)10 mm(3/8 inch)
Spinnaker halyard29.8 m(97.8 feet)10 mm(3/8 inch)
Jib sheet 10.2 m(33.6 feet)12 mm(1/2 inch)
Genoa sheet10.2 m(33.6 feet)12 mm(1/2 inch)
Mainsheet 25.6 m(83.9 feet)12 mm(1/2 inch)
Spinnaker sheet22.5 m(73.8 feet)12 mm(1/2 inch)
Cunningham3.8 m(12.5 feet)10 mm(3/8 inch)
Kickingstrap7.6 m(25.0 feet)10 mm(3/8 inch)
Clew-outhaul7.6 m(25.0 feet)10 mm(3/8 inch)
Fractional rig
UsageLengthDiameter
Mainsail halyard 34.1 m(112.0 feet)10 mm(3/8 inch)
Jib/genoa halyard34.1 m(112.0 feet)10 mm(3/8 inch)
Spinnaker halyard34.1 m(112.0 feet)10 mm(3/8 inch)
Jib sheet 10.2 m(33.6 feet)12 mm(1/2 inch)
Genoa sheet10.2 m(33.6 feet)12 mm(1/2 inch)
Mainsheet 25.6 m(83.9 feet)12 mm(1/2 inch)
Spinnaker sheet22.5 m(73.8 feet)12 mm(1/2 inch)
Cunningham4.7 m(15.4 feet)10 mm(3/8 inch)
Kickingstrap9.4 m(30.8 feet)10 mm(3/8 inch)
Clew-outhaul9.4 m(30.8 feet)10 mm(3/8 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.

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



Finally

We are always looking for new photos. If you can contribute with photos for X-342 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