Review of Viko 27 DS

Basic specs.

The Viko 27 DS is a sailboat. The Viko 27 DS is built by the Polish yard Navikom.

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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Interior

The boat is equipped with 4-6 berths.
The headroom is above average

Keel

The boat can sail close to the beach as the draft is just 0.35 - 0.45 meter (1.15 - 1.45 ft) dependent of the load. See immersion rate below.

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 Viko 27 DS is 2.08, 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 Viko 27 DS is about 143 kg/cm, alternatively 803 lbs/inch.
Meaning: if you load 143 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 803 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 Viko 27 DS is 3.29.

Compared with other similar sailboats it is slimmer than 79% of all other designs. It seems that the designer has chosen a significantly more speedy hull design.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Viko 27 DS is 5%.

This ballast ratio shows a righting moment that is higher than 1% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly below average.

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**
Usage	Length		Diameter
Jib sheet	8.4 m	(27.6 feet)	10 mm	(3/8 inch)
Genoa sheet	8.4 m	(27.6 feet)	10 mm	(3/8 inch)
Mainsheet	21.0 m	(68.9 feet)	10 mm	(3/8 inch)
Spinnaker sheet	18.5 m	(60.6 feet)	10 mm	(3/8 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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Finally

We are always looking for new photos. If you can contribute with photos for Viko 27 DS 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.