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Review of National 10 class


Basic specs.

sail specifications
The National 10 class aka N-10 is a small dinghy designed by the maritime architect bureau J.R.Duplin Marine in the early seventies. The National 10 class is built by Parker River Marine.

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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
Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.

Keel

The National 10 class is equipped with a centerboard keel. A centerboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.


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 National 10 class is about 31 kg/cm, alternatively 177 lbs/inch.
Meaning: if you load 31 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 177 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 National 10 class is 1.84.

Slim Wide 92% 0 50 100
Compared with other similar dinghies it is more spacy than 92% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.


Maintenance

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 National 10 class 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