Review of Magnum 71 Sport

Basic specs.

The Magnum 71 Sport is a large motorboat designed by the American maritime architect Pininfarina. The Magnum 71 Sport is built by the American yard Magnum.

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Interior

The boat is equipped with 567.0 liter fresh water capacity.

Engine

The boat may be equipped with dual inboard MTU 16V 2000 / DDA engines at 3600 hp (2682 kW). Max speed is 52.0 knots.

The fuel tank has a capacity of 4540.0 liters (1199 US gallons, 998 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 Magnum 71 Sport is about 740 kg/cm, alternatively 4149 lbs/inch.
Meaning: if you load 740 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 4149 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 Magnum 71 Sport is 4.12.

Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.

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.
Further, having a maximum speed of 52.0knots, the boat is categorized as a High Performance 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 Magnum 71 Sport 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.