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Review of Bandholm 33


Bandholm 33
Bandholm 33.

Basic specs.

sail specifications
The Bandholm 33 is a sailboat designed by the Danish maritime architect Knud Olsen together with Mogens Lorentzen.

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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.


Keel

Unknown keel type

The boat can enter most marinas as the draft is just about 1.77 - 1.87 meter (5.81 - 6.11 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 Bandholm 33 is 1.80, 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 Bandholm 33 is about 203 kg/cm, alternatively 1140 lbs/inch.
Meaning: if you load 203 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1140 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 Bandholm 33 is 3.31.

Wide Slim 58% 0 50 100
Compared with other similar sailboats it is slimmer than 58% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Bandholm 33 is 42%.

Low High 54% 0 50 100
This ballast ratio shows a righting moment that is higher than 54% of all similar sailboat designs. A righting moment (ability to resist heeling) just above average.


RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Bandholm 33 is 50

Slow Fast 50% 0 50 100
The relative speed performance is 50 which means that a it is faster than 50% 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 10.0 m(32.9 feet)12 mm(1/2 inch)
Genoa sheet10.0 m(32.9 feet)12 mm(1/2 inch)
Mainsheet 25.1 m(82.3 feet)12 mm(1/2 inch)
Spinnaker sheet22.1 m(72.4 feet)12 mm(1/2 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.

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 Bandholm 33 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