Review of Azimut 50 Fly

Basic specs.

The Azimut 50 Fly is a large motorboat designed by the Italian maritime architect Stefano Righini. The Azimut 50 Fly is built by the Italian yard Azimut.

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Hull

Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

Interior

The boat is equipped with 0 cabins, 6+1 berths, a galley, 590.0 liter fresh water capacity, toilet facility and 175.0 liter waste water capacity.

Engine

The Azimut 50 Fly has been equipped with different engine alternatives.

Alternative 1:

The boat may be equipped with an inboard Volvo Penta diesel engine at 1450 hp (1080 kW).

Alternative 2:

Azimut 50 Fly may be equipped with an inboard Caterpillar C12 diesel engine at 700 hp (521 kW).

Alternative 3:

The boat may be equipped with dual inboard Caterpillar diesel engines at 669 hp (498 kW). Max speed is 30.0 knots.

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.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 8.6 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Azimut 50 Fly is about 390 kg/cm, alternatively 2184 lbs/inch.
Meaning: if you load 390 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2184 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 Azimut 50 Fly is 3.37.

Compared with other similar motor boats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly 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 categorized as a Powerboat.

Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 66m² (710 ft²).
Based on this, your favourite maritime shop can tell you the quantity you need.

Note: If you use a paint roller you will need more paint than if you use a paintbrush.

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 Azimut 50 Fly 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.