Review of Tiara 4000 Express

Basic specs.

The Tiara 4000 Express is a large motorboat. The Tiara 4000 Express is built by the American yard Tiara Yachts.

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Interior

The boat is equipped with 567.0 liter fresh water capacity.

Engine

The Tiara 4000 Express has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with dual diesel engines.

Alternative 2:

Tiara 4000 Express may be equipped with a gasoline engine.

The fuel tank has a capacity of 1680.0 liters (443 US gallons, 369 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 Tiara 4000 Express is about 365 kg/cm, alternatively 2048 lbs/inch.
Meaning: if you load 365 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2048 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 Tiara 4000 Express is 2.79.

Compared with other similar motor boats it is more spacy than 85% of all other designs. It seems that the designer has chosen a significantly 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 not categorized as a Powerboat.
Though, if you install a motor of 155 kW (208 hp), then the boat will become a powerboat, and you will need a Danish 'powerboat driving license'

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 Tiara 4000 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.