Review of Comfort 30
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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.
The boat is equipped with 5 berths, a galley and toilet facility.
The Comfort 30 is 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.
Fin keel
The Comfort 30 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 full keel.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
The boat can enter most marinas as the draft is just about 1.68 - 1.78 meter (5.51 - 5.81 ft) dependent on the load. See immersion rate below.
The Comfort 30 has been equipped with different engine alternatives.
Alternative 1:
Comfort 30 may be equipped with an inboard Yanmar diesel engine at 8 hp (5 kW). Calculated max speed is about 3.8 knots
Alternative 2:
The boat may be equipped with an inboard Volvo Penta diesel engine at 13 hp (9 kW). Calculated max speed is about 4.8 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.
What is Capsize Screening Formula (CSF)?
The capsize screening value for Comfort 30 is 2.05, indicating that this boat would not be accepted to participate in ocean races.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 6.5 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 Comfort 30 is about 143 kg/cm, alternatively 803 lbs/inch.
Meaning: if you load 143 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 803 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 Motion Comfort Ratio (MCR)?
The Motion Comfort Ratio for Comfort 30 is 20.8.
What is L/B (Length Beam Ratio)?
The l/b ratio for Comfort 30 is 3.00.
The ballast ratio for Comfort 30 is 42%.
What is Displacement Length Ratio?
The DL-ratio for Comfort 30 is 260 which categorizes this boat among 'light crusers & offshore racers'.
What is SA/D (Sail Area Displacement ratio)?
The SA/D for Comfort 30 with ISO 8666 reference sail is 15.9, with a 135% genua the SA/D is 19.1.
What is Relative Speed Performance?
The Relative Speed Performance for Comfort 30 is 58
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 25m2 (269 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.
| Usage | Length | Diameter | ||
| Mainsail halyard | 26.3 m | (86.3 feet) | 10 mm | (3/8 inch) |
| Jib/genoa halyard | 26.3 m | (86.3 feet) | 10 mm | (3/8 inch) |
| Spinnaker halyard | 26.3 m | (86.3 feet) | 10 mm | (3/8 inch) |
| Jib sheet | 9.1 m | (29.8 feet) | 12 mm | (1/2 inch) |
| Genoa sheet | 9.1 m | (29.8 feet) | 12 mm | (1/2 inch) |
| Mainsheet | 22.7 m | (74.6 feet) | 12 mm | (1/2 inch) |
| Spinnaker sheet | 20.0 m | (65.6 feet) | 12 mm | (1/2 inch) |
| Cunningham | 3.0 m | (9.8 feet) | 10 mm | (3/8 inch) |
| Kickingstrap | 6.0 m | (19.7 feet) | 10 mm | (3/8 inch) |
| Clew-outhaul | 6.0 m | (19.7 feet) | 10 mm | (3/8 inch) |
This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.
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