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Review of Havsörnen I


Basic specs.

sail specifications
The Havsörnen I is a sailboat designed by the Swedish maritime architect Olle Enderlein in the early sixties. The Havsörnen I is built by the Swedish yard Storebro Bruk AB.

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Keel

The boat can enter even shallow marinas as the draft is just about 1.48 - 1.58 meter (4.86 - 5.16 ft) dependent on the load.


Engine

The boat is typically equipped with an inboard Volvo Penta MD2B diesel engine at 25.0 hp (18 kW).


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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Havsörnen I is 1.61, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


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 Havsörnen I is 3.54.

Wide Slim 85% 0 50 100
Compared with other similar sailboats it is slimmer than 85% of all other designs. It seems that the designer has chosen a significantly more speedy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Havsörnen I is 34%.

Low High 15% 0 50 100
This ballast ratio shows a righting moment that is higher than 15% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly below average.


RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Havsörnen I is 3

Slow Fast 3% 0 50 100
The relative speed performance is 3 which means that a it is faster than 3% of all similar sailboat designs.


Maintenance

Rig

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.



Guiding dimensions of running rig
UsageLengthDiameter
Jib sheet 9.4 m(31.0 feet)12 mm(1/2 inch)
Genoa sheet9.4 m(31.0 feet)12 mm(1/2 inch)
Mainsheet 23.6 m(77.5 feet)12 mm(1/2 inch)
Spinnaker sheet20.8 m(68.2 feet)12 mm(1/2 inch)

Boat owner's ideas

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

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Finally

We are always looking for new photos. If you can contribute with photos for Havsörnen I 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