Review of Shamal

Basic specs.

The Shamal is a large motorboat designed by the maritime architect bureau De Casa Engineering. The Shamal is built by the Italian yard Raffaelli.

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Engine

The boat is typically equipped with dual inboard Caterpillar 3126 diesel engines at 900.0 hp (670 kW).

The fuel tank has a capacity of 850.0 liters (224 US gallons, 186 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 Shamal is about 314 kg/cm, alternatively 1762 lbs/inch.
Meaning: if you load 314 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1762 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 Shamal is 3.43.

Compared with other similar motor boats it is slimmer than 62% of all other designs. It seems that the designer has chosen a slightly 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:

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.

Do you have changes/improvements you would like to share? Upload a photo and describe what to look for.

Finally

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