Review of Shannon 50

Basic specs.

sail specifications
The Shannon 50 is a large sailboat designed by the maritime architect Walter Schutz in the early 2000. The Shannon 50 is built by the American yard Shannon Yachts.

Here we would have liked to show you nice photos of the Shannon 50.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a Shannon 50 or similar boat for sale

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.


The Shannon 50 is equipped with a centerboard keel. A centerboard keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.

The boat can only enter major marinas as the draft is about 2.13 - 2.23 meter (6.99 - 7.29 ft) dependent on the load. See immersion rate below.

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 Shannon 50 is 1.68, 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 8.8 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Shannon 50 is about 378 kg/cm, alternatively 2121 lbs/inch.
Meaning: if you load 378 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2121 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 Shannon 50 is 38.5.

Low High 69% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 69% of all similar sailboat designs. This comfort value is just above average.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Shannon 50 is 3.58.

Wide Slim 58% 0 50 100
Compared with other similar sailboats it is slimmer than 58% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Shannon 50 is 38%.

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 Shannon 50 is 222 which categorizes this boat among 'light crusers & offshore racers'.

Heavy Light 50% 0 50 100
50% of all similar sailboat designs are categorized as heavier. This boat has a precise average ratio between displacement and length!

SA/D (Sail Area Displacement ratio)

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

The SA/D for Shannon 50 with ISO 8666 reference sail is 14.2, with a 135% genua the SA/D is 17.1.

Low High 1% 0 50 100
The SA/D ratio indicates that it is faster than 1% of all similar sailboat designs in light wind.

Over- / underrigged


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 63m2 (678 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.


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
Mainsail halyard 39.2 m(128.6 feet)14 mm(0.55 inch)
Jib/genoa halyard39.2 m(128.6 feet)14 mm(0.55 inch)
Spinnaker halyard39.2 m(128.6 feet)14 mm(0.55 inch)
Jib sheet 15.5 m(50.9 feet)16 mm(5/8 inch)
Genoa sheet15.5 m(50.9 feet)16 mm(5/8 inch)
Mainsheet 38.8 m(127.3 feet)16 mm(5/8 inch)
Spinnaker sheet34.1 m(112.0 feet)16 mm(5/8 inch)
Cunningham5.3 m(17.3 feet)14 mm(0.55 inch)
Kickingstrap10.5 m(34.5 feet)14 mm(0.55 inch)
Clew-outhaul10.5 m(34.5 feet)14 mm(0.55 inch)

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what to look for.


We are always looking for new photos. If you can contribute with photos for Shannon 50 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.