Review of Alena 52

Basic specs.

The Alena 52 is a large motorboat. The Alena 52 is built by the Italian yard Innovazione e Progetti Yachts Srl.

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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 berths.

Engine

The boat is typically equipped with dual inboard engines at 700.0 hp (521 kW).

The fuel tank has a capacity of 1800.0 liters (475 US gallons, 395 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

Alena 52 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 Alena 52 is about 510 kg/cm, alternatively 2861 lbs/inch.
Meaning: if you load 510 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2861 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 Alena 52 is 3.53.

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

Danish definition of a powerboat

According to this definition this boat is categorized as a Powerboat.

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 Alena 52 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.