Review of DeFever 50 Pilothouse

Basic specs.

The DeFever 50 Pilothouse is a large motorboat designed by the American maritime architect Arthur DeFever. The DeFever 50 Pilothouse is built by the Taiwanese yard POCTA.

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Interior

The boat is equipped with a galley, 1300.0 liter fresh water capacity, toilet facility and 200.0 liter waste water capacity.

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 DeFever 50 Pilothouse is about 499 kg/cm, alternatively 2795 lbs/inch.
Meaning: if you load 499 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2795 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 DeFever 50 Pilothouse is 3.14.

Compared with other similar motor boats it is more spacy than 82% 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 237 kW (317 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

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References

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.