Review of Nauticat S-300

Basic specs.

The Nauticat S-300 also known as Finnsailer 30 is a sailboat. The Nauticat S-300 is built by the Finnish yard Siltala Yachts Oy.

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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 Nauticat S-300 is 1.88, indicating that this boat could - if evaluated by this formula alone - 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 Nauticat S-300 is about 189 kg/cm, alternatively 1058 lbs/inch.
Meaning: if you load 189 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1058 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 Nauticat S-300 is 2.94.

Compared with other similar sailboats it is more spacy than 69% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

SA/D (Sail Area Displacement ratio)

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

The SA/D for Nauticat S-300 with ISO 8666 reference sail is 13.8, with a 135% genua the SA/D is 16.5.

The SA/D ratio indicates that it is faster than 24% of all similar sailboat designs in light wind.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Nauticat S-300 is 14

The relative speed performance is 14 which means that a it is faster than 14% of all similar sailboat designs.

Maintenance

Rig

Dimensions of sail.

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	25.8 m	(84.6 feet)	10 mm	(3/8 inch)
Jib/genoa halyard	25.8 m	(84.6 feet)	10 mm	(3/8 inch)
Spinnaker halyard	25.8 m	(84.6 feet)	10 mm	(3/8 inch)
Jib sheet	9.1 m	(29.9 feet)	12 mm	(1/2 inch)
Genoa sheet	9.1 m	(29.9 feet)	12 mm	(1/2 inch)
Mainsheet	22.8 m	(74.6 feet)	12 mm	(1/2 inch)
Spinnaker sheet	20.0 m	(65.7 feet)	12 mm	(1/2 inch)
Cunningham	3.4 m	(11.2 feet)	10 mm	(3/8 inch)
Kickingstrap	6.8 m	(22.3 feet)	10 mm	(3/8 inch)
Clew-outhaul	6.8 m	(22.3 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.

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Finally

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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.