Review of Navaho 46

Basic specs.

The Navaho 46 is a large catamaran designed by the British maritime architect James Roderick Macalpine-Downie in the early seventies. The Navaho 46 is built by the British yard Sail Craft Ltd..

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Hull

The hull is made of fibreglass. A hull made of fibreglass requires only a minimum of maintenance during the sailing season.

Rig

The Navaho 46 is built with a cutter rig. A cutter rig breaks the yacht’s sail area down into smaller, easier to manage sails. Cutter rigs are often used for offshore sailing.

Keel

Bilge keel

The Navaho 46 is built with a bilge keel. A bilge keel is a twin keel, which allows the boat to be beached. Bilge keels are the most popular keel for tidal waters.

The boat can enter even shallow marinas as the draft is just about 0.61 - 0.71 meter (2.00 - 2.30 ft) dependent on the load.

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.

Sorry, we have no sailing characteristics available for this boat.

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 Navaho 46 is 2.30.

Compared with other similar sail catamarans it is slimmer than 96% of all other designs.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Navaho 46 is 316 which categorizes this boat among 'heavy cruisers'.

0% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.

Maintenance

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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References

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.