Review of ÅH-30

ÅH-30 anno 1980. Båten byggdes på Lennart Ågren båtbyggeri i Kalmar 1980, och bilden är från sommaren 2002 i Visby hamn.

Basic specs.

sail specifications
The ÅH-30 is a sailboat designed by the maritime architect Lennart Ågren.

Looking for a new boat? Find a ÅH-30 or similar boat for sale


The boat 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.


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.


The boat is typically equipped with an engine.

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 ÅH-30 is 2.05, indicating that this boat would not be accepted to participate in ocean races.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for ÅH-30 is about 182 kg/cm, alternatively 1021 lbs/inch.
Meaning: if you load 182 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1021 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for ÅH-30 is 3.11.

Slim Wide 50% 0 50 100
Compared with other similar sailboats it is more spacy than 50% of all other designs. It seems that the designer has chosen an average hull design.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for ÅH-30 is 38%.

Low High 34% 0 50 100
This ballast ratio shows a righting moment that is higher than 34% of all similar sailboat designs. A righting moment (ability to resist heeling) just below average.

SA/D (Sail Area Displacement ratio)

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

The SA/D for ÅH-30 with ISO 8666 reference sail is 15.9, with a 135% genua the SA/D is 19.1.

Low High 46% 0 50 100
The SA/D ratio indicates that it is faster than 46% of all similar sailboat designs in light wind.

Over- / underrigged

Low High 76% 0 50 100
The ÅH-30 has more rig than 76% of all similar sailboats, which indicates that the boat is significantly overrigged.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for ÅH-30 is 31

Slow Fast 31% 0 50 100
The relative speed performance is 31 which means that a it is faster than 31% of all similar sailboat designs.



Dimensions of sail for masthead rig.

mainsail specifications genoa specifications spinnaker 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
Mainsail halyard 25.6 m(83.8 feet)10 mm(3/8 inch)
Jib/genoa halyard25.6 m(83.8 feet)10 mm(3/8 inch)
Spinnaker halyard25.6 m(83.8 feet)10 mm(3/8 inch)
Jib sheet 9.2 m(30.2 feet)12 mm(1/2 inch)
Genoa sheet9.2 m(30.2 feet)12 mm(1/2 inch)
Mainsheet 23.0 m(75.5 feet)12 mm(1/2 inch)
Spinnaker sheet20.2 m(66.4 feet)12 mm(1/2 inch)
Cunningham2.9 m(9.5 feet)10 mm(3/8 inch)
Kickingstrap5.8 m(19.0 feet)10 mm(3/8 inch)
Clew-outhaul5.8 m(19.0 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.


We are always looking for new photos. If you can contribute with photos for ÅH-30 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.