Review of 11+

Basic specs.

The 11+ is a small sailing dinghy designed by the British maritime architect Eric Parkin in the mid fifties.

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Keel

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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for 11+ is about 31 kg/cm, alternatively 175 lbs/inch.
Meaning: if you load 31 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 175 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 11+ is 2.39.

Compared with other similar dinghies it is more spacy than 50% of all other designs. It seems that the designer has chosen an average hull design.

Maintenance

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 11+ 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.