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Review of Alberg 35


Basic specs.

sail specifications
The Alberg 35 is a sailboat designed by the Swedish maritime architect Carl Alberg in the early sixties. The Alberg 35 is built by the American yard Pearson Yachts.

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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.


Interior

The boat is equipped with 182.0 liter fresh water capacity.


Keel

The Alberg 35 is equipped with a long keel. A long 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 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 1.58 - 1.68 meter (5.18 - 5.48 ft) dependent on the load. See immersion rate below.


Engine

Alberg 35 is typically equipped with a Universal Atomic 4 gasoline engine at 30.0 hp (22 kW), which gives a max speed about 5.7 knots.

The fuel tank has a capacity of 114.0 liters (30 US gallons, 25 imperial gallons).


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 Alberg 35 is 1.67, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.


Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 6.7 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.


Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Alberg 35 is about 149 kg/cm, alternatively 836 lbs/inch.
Meaning: if you load 149 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 836 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Alberg 35 is 33.7.

Low High 86% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 86% of all similar sailboat designs. This is a comfort value significantly above average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Alberg 35 is 3.60.

Wide Slim 86% 0 50 100
Compared with other similar sailboats it is slimmer than 86% 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 Alberg 35 is 42%.

Low High 62% 0 50 100
This ballast ratio shows a righting moment that is higher than 62% of all similar sailboat designs. A righting moment (ability to resist heeling) just above average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Alberg 35 is 373 which categorizes this boat among 'heavy cruisers'.

Heavy Light 8% 0 50 100
8% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.


SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Alberg 35 with ISO 8666 reference sail is 15.6, with a 135% genua the SA/D is 18.3.

Low High 34% 0 50 100
The SA/D ratio indicates that it is faster than 34% of all similar sailboat designs in light wind.


Over- / underrigged

Low High 58% 0 50 100
The Alberg 35 has more rig than 58% of all similar sailboats, which indicates that the boat is slightly overrigged.


Maintenance

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 17m2 (182 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.


Rig

Dimensions of sail.

mainsail specifications headsail specifications

Are your sails worn out? You might find your next sail here: Sails for Sale



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
Mainsail halyard 28.0 m(91.8 feet)12 mm(1/2 inch)
Jib/genoa halyard28.0 m(91.8 feet)12 mm(1/2 inch)
Spinnaker halyard28.0 m(91.8 feet)12 mm(1/2 inch)
Jib sheet 10.7 m(35.0 feet)14 mm(0.55 inch)
Genoa sheet10.7 m(35.0 feet)14 mm(0.55 inch)
Mainsheet 26.7 m(87.5 feet)14 mm(0.55 inch)
Spinnaker sheet23.5 m(77.0 feet)14 mm(0.55 inch)
Cunningham4.6 m(15.2 feet)12 mm(1/2 inch)
Kickingstrap9.3 m(30.4 feet)12 mm(1/2 inch)
Clew-outhaul9.3 m(30.4 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 Alberg 35 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