x yachts 99

Review of X-99

Basic specs..

The hull is made of hand laid fibreglass while the deck is made of fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all. 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. The deck is a double deck which improves the indoor climate.

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, 50.0 liter fresh water capacity and toilet facility. Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.

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.

The X-99 has been built with different keel alternatives.

Unknown keel type

X-99 can enter most marinas as the draft is just about 1.75 - 1.85 meter (5.74 - 6.04 ft) dependent on the load. See immersion rate below.

The X-99 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 full keel.

The boat can only enter major marinas as the draft is about 1.82 - 1.92 meter (5.97 - 6.27 ft) dependent on the load. See immersion rate below.

The boat is typically equipped with an inboard Bukh DV10 diesel engine at 10 hp (7 kW). The speed is 6.7 knots.

The transmission is a saildrive.

The fuel tank, which is made of stainless steel, has a capacity of 30.0 liters (7 US gallons, 6 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.

What is Capsize Screening Formula (CSF)?

The capsize screening value for X-99 is 2.11, indicating that this boat would not 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 7.1 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 X-99 is about 170 kg/cm, alternatively 953 lbs/inch. Meaning: if you load 170 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 953 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)?

What is L/B (Length Beam Ratio)?

What is a Ballast Ratio?

What is Displacement Length Ratio?

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

What is Relative Speed Performance?

Maintenance

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 30m 2 (322 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.

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.

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.

We are always looking for new photos. If you can contribute with photos for X-99 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.

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• Sailboat Guide

X-99 is a 32 ′ 8 ″ / 10 m monohull sailboat designed by Niels Jeppesen and built by X-Yachts starting in 1985.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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Sailboat specifications

• Last update: 16th March 2020

X-99's main features

X-99's main dimensions, x-99's rig and sails, x-99's performances, x-99's auxiliary engine, x-99's accommodations and layout, x-99's saloon, x-99's fore cabin, x-99's aft cabin.

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X-99 8 Pages

Catalog excerpts

33 FT INTERNATIONAL ONE DESIGN CLASS FROM X-YACHTS OF DENMARK DESIGNED BY NIELS JEPPESEN

X-99 One Design Class THE WORLD’S BIGGEST SELLING AND MOST ACTIVE 10 M ONE DESIGN CLASS X-Yachts A/S was founded back in 1979, and the first yacht to roll out of the doors of the factory in Haderslev, Denmark was the 8 m One Design »X-79«. The brainchild of young Danish designer, Niels Jeppesen, the X-79 was (and still is) a fast, simple, non type formed yacht that met with instant approval, and strong fleets were quickly established in Denmark, Germany and Sweden. By the mid 80's there was an increasing demand for a yacht with similar qualities to the X-79, but of around 10 m. A One Design...

4 aluminium frame windows -openable on request Needle bearing for rudder stock Double side operated mainsheet openable cockpit portliglits Frederiksen main - and geitoa tracks and ears Wm/lh Frederiksen main - and geitoa -tracks and cars Stainless steel pad ey< barberhauls + sheets Double side operated trimlines

bottom frame to replace the original glassed in wooden floors. Other improvements include the upgrade of the Bukh engine to a Volvo and aluminium window frames to replace the original recessed Plexiglass panels. Over the years, one name has stood out in the X-99 racing scene above all others, and after winning his 3rd World Championship in a row we at X-Yachts reluctantly decided that enough was enough, and offered him a job. Dan Lindquist Pedersen is the name, and his principal role in the company is to oversee »end quality control«. Dan also brought with him his considerable talents as a...

Galley with double burner optimus 10 HP 2 cyl. freshwater cooled Volvo engine Shelve - or removable cabinet section (on request) Steel floors Large chart table, book shelves and elec, switchboard

compete in the same market, but instead to develop the X-99 Mk 2: - 1. FACT: Even in today's market, the X-99 is still a very fast 33 footer, and up to now, no other designer or producer has been able to build a boat that matches the X-99 in its broad market appeal. Many of the »One Design Classes« being introduced today are pure sports boats, and in our judgement are aimed at such a narrow market that they will never be able to sell in sufficient numbers to allow true International class racing. 2. FACT: More than 500 X-99's have been built to date. Hence the tooling and development costs...

»Despite its recent appearance in many custom built IMS racing yachts and »look alike« One Design yachts I do not feel that the plumb bow is appropriate for a cruiser/racer as it makes upwind sailing in choppy water a veiy wet experience. »The principal advantage of the low CG bulb keel is seen in cruising yachts that are unlikely to have crew hiking on the rail. We use this style of keel on the newer X-Yachts models for that reason. The X-99 keel is of very low CG, being of composite construction with a lead shoe bolted underneath the cast iron keel. »Fractional rigs supported by aft swept...

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Archived catalogs

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The x-yachts x-99 shown below has been sold:, x-yachts x-99.

Sales information

• De Valk Sint Annaland The Netherlands
• +31 166 601 000
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Broker's comments.

The ultimate combination of sporty and family-friendly, the successful X-Yachts X-99 MK II is the best known in its range. With its fast design and fine sailing characteristics, high speeds can be achieved and she is a solid opponent in races. But this does not detract from the practicality and comfort of the boat. Because of the many sleeping places and spacious cockpit, the whole family can go on fun day trips or vacation. The "Ixannaq" is one of the last built of the X-99 MK II type. Got excited too? Please contact us right away to make an appointment.

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The X-99 is no longer in production. To see an overview of the current range please visit the Yachts page. You can also visit the overview of Previous X-Yachts Models .

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