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Review of Boheme 45




Basic specs.

sail specifications
The Boheme 45 is a large sailboat designed by the Danish maritime architect Jim Hartvig Andersen in the early eighties.

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Hull

The hull is made of plywood.


Interior

Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.


Rig

The Boheme 45 is equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.


Keel

Unknown keel type

The boat can only enter major marinas as the draft is about 1.80 - 1.90 meter (5.91 - 6.21 ft) dependent on the load. See immersion rate below.


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 Boheme 45 is 1.77, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Boheme 45 is about 307 kg/cm, alternatively 1722 lbs/inch.
Meaning: if you load 307 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1722 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 Boheme 45 is 3.97.

Wide Slim 96% 0 50 100
Compared with other similar sailboats it is slimmer than 96% of all other designs. It seems that the designer has chosen a significantly more speedy hull design. This type of design is also referred to as 'needle'.


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 13.5 m(44.3 feet)16 mm(5/8 inch)
Genoa sheet13.5 m(44.3 feet)16 mm(5/8 inch)
Mainsheet 33.8 m(110.7 feet)16 mm(5/8 inch)
Spinnaker sheet29.7 m(97.4 feet)16 mm(5/8 inch)

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.

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Finally

We are always looking for new photos. If you can contribute with photos for Boheme 45 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