Review of Alltiett 35
Basic specs.
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The deck is made of die cast fibreglass.
The hull is a double hull which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.
The boat is equipped with 5 berths.
The Alltiett 35 has been built with different keel alternatives.
DaggerBoard aka Sword
The Alltiett 35 is equipped with a daggerboard keel. A daggerboard is a lifting keel that can be lowered and raised, allowing the boat to enter shallow waters as well.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
The boat can enter most marinas as the draft is just about 1.60 - 1.70 meter (5.25 - 5.55 ft) dependent on the load. See immersion rate below.
Torpedo keel
But be aware that even though a Torpedo keel is very good for speed racing, a fishing nets and the like in the water can easily make you into a troublesome situation.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
Alltiett 35 can only enter major marinas as the draft is about 2.00 - 2.10 meter (6.56 - 6.86 ft) dependent on the load. See immersion rate below.
The boat may be equipped with an inboard Volvo Penta MD2030 diesel engine at 29 hp (21 kW). The speed is 9.7 knots.
The transmission is a saildrive.
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.
What is Capsize Screening Formula (CSF)?
The capsize screening value for Alltiett 35 is 2.66, 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 7.8 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 Alltiett 35 is about 260 kg/cm, alternatively 1461 lbs/inch.
Meaning: if you load 260 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1461 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.
What is Motion Comfort Ratio (MCR)?
The Motion Comfort Ratio for Alltiett 35 is 10.3.
What is L/B (Length Beam Ratio)?
The l/b ratio for Alltiett 35 is 2.83.
What is Displacement Length Ratio?
The DL-ratio for Alltiett 35 is 77 which categorizes this boat among 'ultra light racers'.
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 46m2 (495 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 | 10.8 m | (35.3 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.8 m | (35.3 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 26.9 m | (88.2 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.7 m | (77.6 feet) | 14 mm | (0.55 inch) |
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