Review of Sunspot

Basic specs.

The Sunspot is a small sailboat designed by the British maritime architect Colin Mudie in the early seventies. The Sunspot is built by the Canadian yard Sunspot Plastics Inc..

Here we would have liked to show you nice photos of the Sunspot.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a Sunspot or similar boat for sale

Keel

Unknown keel type

The boat can sail close to the beach as the draft is just 0.20 - 0.30 meter (0.66 - 0.96 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 Sunspot is 3.20, 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 Sunspot is about 34 kg/cm, alternatively 193 lbs/inch.
Meaning: if you load 34 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 193 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 Sunspot is 3.46.

Compared with other similar sailboats it is slimmer than 90% 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'.

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	4.2 m	(13.8 feet)	8 mm	(5/16 inch)
Genoa sheet	4.2 m	(13.8 feet)	8 mm	(5/16 inch)
Mainsheet	10.5 m	(34.6 feet)	8 mm	(5/16 inch)
Spinnaker sheet	9.3 m	(30.5 feet)	8 mm	(5/16 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 Sunspot 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.