Review of Vindö 28

Basic specs.

The Vindö 28 is a sailboat designed by the Swedish maritime architect Carl Andersson in the early sixties. The Vindö 28 is built by the Swedish yard IW-Varvet.

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Interior

The interior is like many other boats made of mahogany.

Rig

The boat 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.

Engine

The boat is typically equipped with an inboard engine.

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive e.g. a sail drive.

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 Vindö 28 is 1.64, 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 6.2 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 Vindö 28 is about 102 kg/cm, alternatively 573 lbs/inch.
Meaning: if you load 102 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 573 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 Vindö 28 is 29.1.

Comparing this ratio with similar sailboats show that it is more comfortable than 92% of all similar sailboat designs. This is a comfort value significantly above average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Vindö 28 is 3.49.

Compared with other similar sailboats it is slimmer than 93% 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 Vindö 28 is 304 which categorizes this boat among 'medium weight cruisers'.

24% 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 Vindö 28 with ISO 8666 reference sail is 13.3, with a 135% genua the SA/D is 15.3.

The SA/D ratio indicates that it is faster than 18% of all similar sailboat designs in light wind.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Vindö 28 is 10

The relative speed performance is 10 which means that a it is faster than 10% of all similar sailboat designs.

Maintenance

Rig

Dimensions of sail for masthead rig.

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**
Usage	Length		Diameter
Mainsail halyard	22.8 m	(74.8 feet)	8 mm	(5/16 inch)
Jib/genoa halyard	22.8 m	(74.8 feet)	8 mm	(5/16 inch)
Spinnaker halyard	22.8 m	(74.8 feet)	8 mm	(5/16 inch)
Jib sheet	8.2 m	(26.9 feet)	10 mm	(3/8 inch)
Genoa sheet	8.2 m	(26.9 feet)	10 mm	(3/8 inch)
Mainsheet	20.5 m	(67.3 feet)	10 mm	(3/8 inch)
Spinnaker sheet	18.0 m	(59.2 feet)	10 mm	(3/8 inch)
Cunningham	3.6 m	(11.8 feet)	8 mm	(5/16 inch)
Kickingstrap	7.2 m	(23.6 feet)	8 mm	(5/16 inch)
Clew-outhaul	7.2 m	(23.6 feet)	8 mm	(5/16 inch)

Boat owner's ideas

This section is reserved boat owner's changes, 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 Vindö 28 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.