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Review of Alfamarine 58


Basic specs.

sail specifications
The Alfamarine 58 is a large motorboat.

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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.


Interior

The boat is equipped with 6+1 berths and 800.0 liter fresh water capacity.


Engine

The boat is typically equipped with dual inboard Caterpillar diesel engines at 1000.0 hp (745 kW).

The fuel tank has a capacity of 3200.0 liters (845 US gallons, 703 imperial gallons).


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.

EU classification

Alfamarine 58 holds one CE certification:

The boat is by European Union certified as Class A. OCEAN:
Designed for extended voyages where conditions may exceed wind force 8 (Beaufort scale) and significant wave heights of 4 m and above but excluding abnormal conditions, and vessels largely self-sufficient.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Alfamarine 58 is about 554 kg/cm, alternatively 3106 lbs/inch.
Meaning: if you load 554 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 3106 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 Alfamarine 58 is 3.91.

Wide Slim 88% 0 50 100
Compared with other similar motor boats it is slimmer than 88% of all other designs. It seems that the designer has chosen a significantly more speedy hull design.


Curiosities

Powerboat?

In Denmark, you are required to have achieved a 'powerboat driving license' in order to sail a powerboat.
In this context a boat is considered a powerboat if:

Equation for Danish definition of a powerboat
Danish definition of a powerboat
According to this definition this boat is categorized as a Powerboat.


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

We are always looking for new photos. If you can contribute with photos for Alfamarine 58 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