The Drabant 21 is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with 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. See immersion rate below.
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.
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.
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.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Drabant 21 is about 96 kg/cm, alternatively 540 lbs/inch.
Meaning: if you load 96 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 540 lbs cargo on the boat it will sink 1 inch.
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.
What is L/B (Length Beam Ratio)?
The l/b ratio for Drabant 21 is 3.12.
The ballast ratio for Drabant 21 is 50%.
What is Relative Speed Performance?
The Relative Speed Performance for Drabant 21 is 66
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.
Usage | Length | Diameter | ||
Jib sheet | 6.7 m | (22.0 feet) | 10 mm | (3/8 inch) |
Genoa sheet | 6.7 m | (22.0 feet) | 10 mm | (3/8 inch) |
Mainsheet | 16.8 m | (55.0 feet) | 10 mm | (3/8 inch) |
Spinnaker sheet | 14.7 m | (48.4 feet) | 10 mm | (3/8 inch) |
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