Review of Greyhound 33

Greyhound 33 anno 1974. unsere SY TOMANITA im Hafen

Basic specs.

The Greyhound 33 is a sailboat designed by the maritime architect W. Jenneskens in the early seventies.

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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.

Rig

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.

Keel

The boat can enter most marinas as the draft is just about 1.70 - 1.80 meter (5.58 - 5.88 ft) dependent on the load. See immersion rate below.

Engine

The boat is typically equipped with a Farymann engine at 20.0 hp (14 kW).

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 Greyhound 33 is 2.19, 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 Greyhound 33 is about 215 kg/cm, alternatively 1206 lbs/inch.
Meaning: if you load 215 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1206 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 Greyhound 33 is 3.14.

Compared with other similar sailboats it is more spacy than 58% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Greyhound 33 is 43%.

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.

SA/D (Sail Area Displacement ratio)

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

The SA/D for Greyhound 33 with ISO 8666 reference sail is 19.3, with a 135% genua the SA/D is 23.0.

The SA/D ratio indicates that it is faster than 85% of all similar sailboat designs in light wind.

Over- / underrigged

The Greyhound 33 has more rig than 86% of all similar sailboats, which indicates that the boat is significantly overrigged.

Maintenance

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	26.4 m	(86.7 feet)	10 mm	(3/8 inch)
Jib/genoa halyard	26.4 m	(86.7 feet)	10 mm	(3/8 inch)
Spinnaker halyard	26.4 m	(86.7 feet)	10 mm	(3/8 inch)
Jib sheet	10.1 m	(33.0 feet)	12 mm	(1/2 inch)
Genoa sheet	10.1 m	(33.0 feet)	12 mm	(1/2 inch)
Mainsheet	25.1 m	(82.4 feet)	12 mm	(1/2 inch)
Spinnaker sheet	22.1 m	(72.5 feet)	12 mm	(1/2 inch)
Cunningham	3.7 m	(12.1 feet)	10 mm	(3/8 inch)
Kickingstrap	7.4 m	(24.3 feet)	10 mm	(3/8 inch)
Clew-outhaul	7.4 m	(24.3 feet)	10 mm	(3/8 inch)

Boat owner's ideas

This section is reserved boat owner's changes, 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 Greyhound 33 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.