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Review of Windex 92


Windex 92
Windex 92 anno 1988.

Basic specs.

sail specifications
The Windex 92 is a sailboat designed by the Swedish maritime architect Lars Bergström together with Sven-Olof Ridder also from Sweden in the late seventies. Only a few boats have been produced. The Windex 92 is built by the Swedish yard Radab AB.

Looking for a new boat? Find a Windex 92 or similar boat for sale

Interior

The boat is equipped with 7 berths, a galley and toilet facility.


Rig

The Windex 92 is equipped with 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

Swing keel

The Windex 92 is equipped with a swing keel. A swing keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.

The keel is made of iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated.

The boat can enter even shallow marinas as the draft is just about 1.08 - 1.18 meter (3.54 - 3.84 ft) dependent on the load. See immersion rate below.


Engine

Windex 92 may be equipped with an inboard Yanmar diesel engine at 8 hp (5 kW). Calculated max speed is about 3.5 knots


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 Windex 92 is 2.07, 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 6.5 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 Windex 92 is about 154 kg/cm, alternatively 864 lbs/inch.
Meaning: if you load 154 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 864 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 Windex 92 is 21.9.

Low High 42% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 42% 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 Windex 92 is 2.87.

Slim Wide 73% 0 50 100
Compared with other similar sailboats it is more spacy than 73% 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 Windex 92 is 32%.

Low High 10% 0 50 100
This ballast ratio shows a righting moment that is higher than 10% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly below average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Windex 92 is 283 which categorizes this boat among 'medium weight cruisers'.

Heavy Light 38% 0 50 100
38% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.


SA/D (Sail Area Displacement ratio)

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

The SA/D for Windex 92 with ISO 8666 reference sail is 14.7, with a 135% genua the SA/D is 17.5.

Low High 31% 0 50 100
The SA/D ratio indicates that it is faster than 31% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 46% 0 50 100
The Windex 92 has more rig than 46% of all similar sailboats, which indicates that the boat is slightly underrigged.


RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Windex 92 is 62

Slow Fast 62% 0 50 100
The relative speed performance is 62 which means that a it is faster than 62% of all similar sailboat designs.


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 28m2 (301 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 genoa specifications spinnaker 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 26.3 m(86.3 feet)10 mm(3/8 inch)
Jib/genoa halyard26.3 m(86.3 feet)10 mm(3/8 inch)
Spinnaker halyard26.3 m(86.3 feet)10 mm(3/8 inch)
Jib sheet 9.2 m(30.2 feet)12 mm(1/2 inch)
Genoa sheet9.2 m(30.2 feet)12 mm(1/2 inch)
Mainsheet 23.0 m(75.5 feet)12 mm(1/2 inch)
Spinnaker sheet20.2 m(66.4 feet)12 mm(1/2 inch)
Cunningham3.1 m(10.3 feet)10 mm(3/8 inch)
Kickingstrap6.3 m(20.7 feet)10 mm(3/8 inch)
Clew-outhaul6.3 m(20.7 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 Windex 92 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