Review of 3B Craft T 31 Express

Basic specs.

The 3B Craft T 31 Express is a 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 2+2 berths and 200.0 liter fresh water capacity.

Engine

The boat may be equipped with dual inboard Iveco engines at 400 hp (298 kW).

The fuel tank has a capacity of 700.0 liters (184 US gallons, 153 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

3B Craft T 31 Express holds a CE certification:

The boat is by European Union certified as Class B. OFFSHORE:

Designed for offshore voyages where conditions up to, and including, wind force 8 (Beaufort scale) and significant wave heights up to, and including, 4 m may be experienced.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for 3B Craft T 31 Express is about 255 kg/cm, alternatively 1431 lbs/inch.
Meaning: if you load 255 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1431 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 3B Craft T 31 Express is 2.94.

Compared with other similar motor boats it is more spacy than 73% of all other designs. It seems that the designer has chosen a slightly more spacy 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 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 3B Craft T 31 Express 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.