The hull is made of wood.
The boat equipped with a yawl rig. A yawl rig is generally considered easier to handle, because the sails are smaller, and because it can sail on most points to the wind with one sail completely taken down for repair or while reefing. The sail configuration of a yawl allows for better comfort and stability when sailing downwind or on a broad reach.
Full keel
The Sea bird 26 II is equipped with a long keel. A full keel provide a better directional stability than a similar boat with a fin keel; on the other hand, better directional stability means also that the boat is more difficult to handle in a harbour with less space.
The boat can enter even shallow marinas as the draft is just about 1.04 - 1.14 meter (3.41 - 3.71 ft) dependent on the load. See immersion rate below.
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 Sea bird 26 II is 2.32, indicating that this boat would not be accepted to participate in ocean races.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 6.3 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Sea bird 26 II is about 120 kg/cm, alternatively 677 lbs/inch.
Meaning: if you load 120 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 677 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 Motion Comfort Ratio (MCR)?
The Motion Comfort Ratio for Sea bird 26 II is 12.7.
What is L/B (Length Beam Ratio)?
The l/b ratio for Sea bird 26 II is 2.95.
The ballast ratio for Sea bird 26 II is 52%.
What is Displacement Length Ratio?
The DL-ratio for Sea bird 26 II is 146 which categorizes this boat among 'ultra light racers'.
SA/D (Sail Area Displacement ratio)
Indicates how fast the boat is in light wind:
- Cruising Boats have ratios 10-15
- Cruiser-Racers have ratios 16-20
- Racers have ratios above 20
- High-Performance Racers have ratios above 24
Sail-area/displacement ratio (SA/D ratio): 27.04
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 13m2 (139 ft2).
Based on this, your favourite maritime shop can tell you the quantity you need.
Note: If you use a paint roller you will need more paint than if you use a paintbrush.
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 | 7.9 m | (26.0 feet) | 10 mm | (3/8 inch) |
Genoa sheet | 7.9 m | (26.0 feet) | 10 mm | (3/8 inch) |
Mainsheet | 19.8 m | (65.0 feet) | 10 mm | (3/8 inch) |
Spinnaker sheet | 17.4 m | (57.2 feet) | 10 mm | (3/8 inch) |
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