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Review of Princess 55


Basic specs.

sail specifications
The Princess 55 is a large motorboat designed by the maritime architect Bernard Olesinski in the mid eighties. The Princess 55 is built by the British yard Marine Projects.

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Hull

The hull is made of hand laid fibreglass while the deck is made of fibreglass. Generally, a hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season.

The hull is a sandwich construction which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.


Interior

The interior is like most other boats made of teak. Teak has the advantage of being naturally very oily and therefore water-repellent, which is suitable on boats.
The boat is equipped with 4 cabins, 12 berths, a galley, 910.0 liter fresh water capacity and toilet facility.


Keel

Unknown keel type

The boat can enter even shallow marinas as the draft is just about 1.06 - 1.16 meter (3.48 - 3.78 ft) dependent on the load. See immersion rate below.


Engine

Princess 55 may be equipped with dual inboard Volvo Penta TAMD 71A diesel engines at 716 hp (533 kW). Max speed is 20.0 knots.

The transmission is a shaft drive. A shaft drive will in the long run require less maintenance than other types of drive e.g. a sail drive.

The fuel tank, which is made of stainless steel, has a capacity of 1887.0 liters (498 US gallons, 415 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 Princess 55 is about 540 kg/cm, alternatively 3027 lbs/inch.
Meaning: if you load 540 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 3027 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 Princess 55 is 3.53.

Slim Wide 50% 0 50 100
Compared with other similar motor boats it is more spacy than 50% of all other designs. It seems that the designer has chosen an average 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:

Equation for Danish definition of a powerboat
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.

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



Finally

We are always looking for new photos. If you can contribute with photos for Princess 55 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