Review of Alfamarine 90

Basic specs.

The Alfamarine 90 is a large motorboat. The Alfamarine 90 is built by the Italian yard Alfamarine.

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Interior

The boat is equipped with 2500.0 liter fresh water capacity.

Engine

The boat may be equipped with dual inboard MTU engines at 4570 hp (3404 kW). Max speed is 31.0 knots.

The fuel tank has a capacity of 7000.0 liters (1849 US gallons, 1539 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Alfamarine 90 is about 1157 kg/cm, alternatively 6483 lbs/inch.
Meaning: if you load 1157 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 6483 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 90 is 4.22.

Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.

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:

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 90 it would be a great help.

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References

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