Review of Pearson 28

Basic specs.

The Pearson 28 is a sailboat designed by the American maritime architect William H. Shaw in the mid eighties. The Pearson 28 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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Interior

The boat is equipped with 95.0 liter fresh water capacity.

Rig

The Pearson 28 is 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.

Keel

The Pearson 28 has been built with different keel alternatives.

Fin keel

One option is a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

The boat can enter even shallow marinas as the draft is just about 1.07 - 1.17 meter (3.51 - 3.81 ft) dependent on the load. See immersion rate below.

Fin keel

Another option is a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

Pearson 28 can enter even shallow marinas as the draft is just about 1.47 - 1.57 meter (4.82 - 5.12 ft) dependent on the load. See immersion rate below.

Engine

The boat may be equipped with an inboard Yanmar 2GM20 diesel engine

The fuel tank has a capacity of 70.0 liters (18 US gallons, 15 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 Pearson 28 is 2.06, indicating that this boat would not 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 6.6 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 Pearson 28 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 Pearson 28 is 19.9.

Comparing this ratio with similar sailboats show that it is more comfortable than 38% of all similar sailboat designs. This comfort value is just below average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Pearson 28 is 2.89.

Compared with other similar sailboats it is more spacy than 69% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Pearson 28 is 215 which categorizes this boat among 'light crusers & offshore racers'.

66% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.

SA/D (Sail Area Displacement ratio)

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

The SA/D for Pearson 28 with ISO 8666 reference sail is 16.8, with a 135% genua the SA/D is 20.0.

The SA/D ratio indicates that it is faster than 58% of all similar sailboat designs in light wind.

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 23m² (247 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 for masthead rig.

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**
Usage	Length		Diameter
Mainsail halyard	25.6 m	(84.1 feet)	8 mm	(5/16 inch)
Jib/genoa halyard	25.6 m	(84.1 feet)	8 mm	(5/16 inch)
Spinnaker halyard	25.6 m	(84.1 feet)	8 mm	(5/16 inch)
Jib sheet	8.7 m	(28.4 feet)	10 mm	(3/8 inch)
Genoa sheet	8.7 m	(28.4 feet)	10 mm	(3/8 inch)
Mainsheet	21.7 m	(71.1 feet)	10 mm	(3/8 inch)
Spinnaker sheet	19.1 m	(62.6 feet)	10 mm	(3/8 inch)
Cunningham	3.3 m	(10.8 feet)	8 mm	(5/16 inch)
Kickingstrap	6.6 m	(21.5 feet)	8 mm	(5/16 inch)
Clew-outhaul	6.6 m	(21.5 feet)	8 mm	(5/16 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 Pearson 28 (1985-1989) 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.