Review of Cayman 55 Open

Basic specs.

The Cayman 55 Open is a large motorboat designed by the Italian maritime architect Prosperi. The Cayman 55 Open is built by the Italian yard Cayman Yachts.

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Interior

The boat is equipped with 800.0 liter fresh water capacity.

Engine

The Cayman 55 Open has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with dual inboard MAN diesel engines at 1640 hp (1221 kW). Max speed is 37.0 knots.

Alternative 2:

Cayman 55 Open may be equipped with dual inboard Caterpillar diesel engines at 660 hp (491 kW).

The fuel tank has a capacity of 2200.0 liters (581 US gallons, 483 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 Cayman 55 Open is about 548 kg/cm, alternatively 3071 lbs/inch.
Meaning: if you load 548 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 3071 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 Cayman 55 Open is 3.87.

Compared with other similar motor boats it is slimmer than 86% of all other designs. It seems that the designer has chosen a significantly 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 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 Cayman 55 Open 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.