Review of Omega 30 S

Basic specs.

The Omega 30 S is a sailboat designed by the New Zealander maritime architect Ron Holland in the early eighties. Several hundred boats have been produced. The Omega 30 S is built by the Swedish yard Omega Yachts.

Here we would have liked to show you nice photos of the Omega 30 S.
If you have a photo you would like to share: Upload Image

Looking for a new boat? Find a Omega 30 S or similar boat for sale

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.

Rig

The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.

Keel

The Omega 30 S is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a long keel.

The keel is made of iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated. As the surface of a fin type keel is just a fraction of the total wet surface, the difference between an iron keel and a lead keel can in reality be ignored for cruising yachts.

The boat can enter most marinas as the draft is just about 1.55 - 1.65 meter (5.09 - 5.39 ft) dependent on the load. See immersion rate below.

Engine

The boat is typically equipped with an inboard Yanmar diesel engine at 6.0 hp (4 kW), which gives a max speed about 3.5 knots.

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 Omega 30 S is 2.03, 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 6.9 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 Omega 30 S is about 157 kg/cm, alternatively 883 lbs/inch.
Meaning: if you load 157 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 883 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 Omega 30 S is 3.17.

Compared with other similar sailboats it is slimmer than 54% 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 Omega 30 S is 42%.

This ballast ratio shows a righting moment that is higher than 58% 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 Omega 30 S is 172 which categorizes this boat among 'light racers'.

85% 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 Omega 30 S with ISO 8666 reference sail is 20.3, with a 135% genua the SA/D is 23.5.

The SA/D ratio indicates that it is faster than 92% of all similar sailboat designs in light wind.

Over- / underrigged

The Omega 30 S has more rig than 95% of all similar sailboats, which indicates that the boat is significantly overrigged.

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 27m² (290 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 fractional 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	30.0 m	(98.3 feet)	10 mm	(3/8 inch)
Jib/genoa halyard	30.0 m	(98.3 feet)	10 mm	(3/8 inch)
Spinnaker halyard	30.0 m	(98.3 feet)	10 mm	(3/8 inch)
Jib sheet	9.3 m	(30.7 feet)	12 mm	(1/2 inch)
Genoa sheet	9.3 m	(30.7 feet)	12 mm	(1/2 inch)
Mainsheet	23.4 m	(76.7 feet)	12 mm	(1/2 inch)
Spinnaker sheet	20.6 m	(67.5 feet)	12 mm	(1/2 inch)
Cunningham	4.2 m	(13.7 feet)	10 mm	(3/8 inch)
Kickingstrap	8.4 m	(27.4 feet)	10 mm	(3/8 inch)
Clew-outhaul	8.4 m	(27.4 feet)	10 mm	(3/8 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.

Finally

We are always looking for new photos. If you can contribute with photos for Omega 30 S 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.