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Review of Leader 805 IB


Basic specs.

sail specifications
The Leader 805 IB is a motorboat designed in the late nineties. The Leader 805 IB is built by the French yard Jeanneau.

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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Interior
The boat is equipped with a galley and toilet facility.

Engine

The boat is typically equipped with dual engines at 275.0 hp (204 kW).

The fuel tank has a capacity of 320.0 liters (84 US gallons, 70 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

Leader 805 IB holds two CE certifications:

If less than 7 in on board 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.

If less than 9 in on board the boat is by European Union certified as Class C. INSHORE:
Designed for voyages in coastal waters, large bays, estuaries, lakes and rivers where conditions up to, and including, wind force 6 (Beaufort scale) and significant wave heights up to, and including, 2 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 Leader 805 IB is about 155 kg/cm, alternatively 872 lbs/inch.
Meaning: if you load 155 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 872 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 Leader 805 IB is 2.51.

Slim Wide 96% 0 50 100
Compared with other similar motor boats it is more spacy than 96% 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:

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 shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

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



Finally

We are always looking for new photos. If you can contribute with photos for Leader 805 IB 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