Review of Oceanis 370
Basic specs.
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The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
The boat has more than one rig.
One option is 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.
The Oceanis 370 has been built with different keel alternatives.
Deep keel
One option is a deep keel. A deep keel provide a better healing moment than a shallow 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.
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.
Wing keel
But be aware that even though a Wing Keel keel is very good for speed racing, a fishing nets and the like in the water can easily make you into a troublesome situation.
This keel is also made of iron.
Oceanis 370 can enter even shallow marinas as the draft is just about 1.25 - 1.35 meter (4.10 - 4.40 ft) dependent on the load. See immersion rate below.
The boat may be equipped with an inboard Volvo Penta 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.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 7.5 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.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Oceanis 370 is about 245 kg/cm, alternatively 1372 lbs/inch.
Meaning: if you load 245 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1372 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.
What is L/B (Length Beam Ratio)?
The l/b ratio for Oceanis 370 is 2.79.
The ballast ratio for Oceanis 370 is 36%.
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 39m2 (419 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 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.
| Masthead rig | ||||
| Usage | Length | Diameter | ||
| Mainsail halyard | 30.7 m | (100.6 feet) | 12 mm | (1/2 inch) |
| Jib/genoa halyard | 30.7 m | (100.6 feet) | 12 mm | (1/2 inch) |
| Spinnaker halyard | 30.7 m | (100.6 feet) | 12 mm | (1/2 inch) |
| Jib sheet | 10.6 m | (34.8 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.6 m | (34.8 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 26.5 m | (86.9 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.3 m | (76.5 feet) | 14 mm | (0.55 inch) |
| Cunningham | 4.5 m | (14.9 feet) | 12 mm | (1/2 inch) |
| Kickingstrap | 9.1 m | (29.9 feet) | 12 mm | (1/2 inch) |
| Clew-outhaul | 9.1 m | (29.9 feet) | 12 mm | (1/2 inch) |
| Masthead rig | ||||
| Usage | Length | Diameter | ||
| Mainsail halyard | 30.6 m | (100.5 feet) | 12 mm | (1/2 inch) |
| Jib/genoa halyard | 30.6 m | (100.5 feet) | 12 mm | (1/2 inch) |
| Spinnaker halyard | 30.6 m | (100.5 feet) | 12 mm | (1/2 inch) |
| Jib sheet | 10.6 m | (34.8 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.6 m | (34.8 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 26.5 m | (86.9 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.3 m | (76.5 feet) | 14 mm | (0.55 inch) |
| Cunningham | 4.5 m | (14.9 feet) | 12 mm | (1/2 inch) |
| Kickingstrap | 9.1 m | (29.8 feet) | 12 mm | (1/2 inch) |
| Clew-outhaul | 9.1 m | (29.8 feet) | 12 mm | (1/2 inch) |
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