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Review of Drabant 21


Drabant 21
Drabant 21 anno 1980.


Basic specs.

sail specifications
The Drabant 21 is a sailboat designed by the Danish maritime architect Gert Gerlach in the late seventies. Only a few boats have been produced. The Drabant 21 is built by the Danish yard A/S Nilling's Bådeværft.

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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.


Interior

The boat is equipped with 4 berths.

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


Rig

The Drabant 21 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

Fin keel

The Drabant 21 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

Drabant 21 can enter even shallow marinas as the draft is just about 1.15 - 1.25 meter (3.77 - 4.07 ft) dependent on the load.


Engine

An outboard motor is often used on this boat. In that case the boat will typically require a power of 2 - 3 hp, alternatively 48 - 57 lbs thrust if you prefer an electrical motor. Electric outboards are becoming popular for sailboat owners who want clean instant power with less noise and no exhaust fumes.


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 Drabant 21 is 2.11, indicating that this boat would not 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 Drabant 21 is 3.08.

Wide Slim 79% 0 50 100
Compared with other similar sailboats it is slimmer than 79% 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 Drabant 21 is 50%.

Low High 88% 0 50 100
This ballast ratio shows a righting moment that is higher than 88% of all similar sailboat designs. A righting moment (ability to resist heeling) significantly above average.


RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Drabant 21 is 69

Slow Fast 69% 0 50 100
The relative speed performance is 69 which means that a it is faster than 69% 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 6.6 m(21.8 feet)10 mm(3/8 inch)
Genoa sheet6.6 m(21.8 feet)10 mm(3/8 inch)
Mainsheet 16.6 m(54.4 feet)10 mm(3/8 inch)
Spinnaker sheet14.6 m(47.9 feet)10 mm(3/8 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.

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 Drabant 21 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