Review of Moody 47

Basic specs.

The Moody 47 is a large sailboat designed by the British maritime architect Angus S. Primrose.

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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 6-9 berths.

Keel

The Moody 47 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The boat can only enter major marinas as the draft is about 2.28 - 2.38 meter (7.48 - 7.78 ft) dependent on the load. See immersion rate below.

Engine

Moody 47 is typically equipped with an inboard Thornycroft diesel 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 Moody 47 is 1.92, indicating that this boat could - if evaluated by this formula alone - 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 Moody 47 is about 443 kg/cm, alternatively 2485 lbs/inch.
Meaning: if you load 443 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 2485 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 Moody 47 is 3.30.

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.

SA/D (Sail Area Displacement ratio)

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

The SA/D for Moody 47 with ISO 8666 reference sail is 17.1, with a 135% genua the SA/D is 20.3.

The SA/D ratio indicates that it is faster than 21% of all similar sailboat designs in light wind.

Maintenance

Rig

Dimensions of sail.

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	42.5 m	(139.3 feet)	14 mm	(0.55 inch)
Jib/genoa halyard	42.5 m	(139.3 feet)	14 mm	(0.55 inch)
Spinnaker halyard	42.5 m	(139.3 feet)	14 mm	(0.55 inch)
Jib sheet	14.8 m	(48.5 feet)	16 mm	(5/8 inch)
Genoa sheet	14.8 m	(48.5 feet)	16 mm	(5/8 inch)
Mainsheet	37.0 m	(121.3 feet)	16 mm	(5/8 inch)
Spinnaker sheet	32.5 m	(106.8 feet)	16 mm	(5/8 inch)
Cunningham	5.2 m	(17.0 feet)	14 mm	(0.55 inch)
Kickingstrap	10.4 m	(34.0 feet)	14 mm	(0.55 inch)
Clew-outhaul	10.4 m	(34.0 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.

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Finally

We are always looking for new photos. If you can contribute with photos for Moody 47 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.