Review of Catalina 470
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 is equipped with 4+3 berths and 810.0 liter fresh water capacity.
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 Catalina 470 has been built with different keel alternatives.
Fin keel
One option is 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.
Catalina 470 can only enter major marinas as the draft is about 2.39 - 2.49 meter (7.84 - 8.14 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.
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 boat may be equipped with an inboard Yanmar 4JH-TE diesel engine at 75 hp (55 kW). Calculated max speed is about 8.0 knots
The fuel tank has a capacity of 333.0 liters (87 US gallons, 73 imperial gallons).
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 Catalina 470 is 1.86, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
Catalina 470 holds a CE certification:
The boat is by European Union certified as Class A. OCEAN:What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 8.7 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 Catalina 470 is about 366 kg/cm, alternatively 2050 lbs/inch.
Meaning: if you load 366 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 2050 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 Catalina 470 is 28.7.
What is L/B (Length Beam Ratio)?
The l/b ratio for Catalina 470 is 3.32.
The ballast ratio for Catalina 470 is 33%.
What is Displacement Length Ratio?
The DL-ratio for Catalina 470 is 164 which categorizes this boat among 'light racers'.
What is SA/D (Sail Area Displacement ratio)?
The SA/D for Catalina 470 with ISO 8666 reference sail is 17.8, with a 135% genua the SA/D is 20.9.
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 64m2 (688 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 | 40.5 m | (133.0 feet) | 14 mm | (0.55 inch) |
| Jib/genoa halyard | 40.5 m | (133.0 feet) | 14 mm | (0.55 inch) |
| Spinnaker halyard | 40.5 m | (133.0 feet) | 14 mm | (0.55 inch) |
| Jib sheet | 14.2 m | (46.5 feet) | 16 mm | (5/8 inch) |
| Genoa sheet | 14.2 m | (46.5 feet) | 16 mm | (5/8 inch) |
| Mainsheet | 35.4 m | (116.2 feet) | 16 mm | (5/8 inch) |
| Spinnaker sheet | 31.2 m | (102.3 feet) | 16 mm | (5/8 inch) |
| Cunningham | 6.1 m | (19.9 feet) | 14 mm | (0.55 inch) |
| Kickingstrap | 12.2 m | (39.9 feet) | 14 mm | (0.55 inch) |
| Clew-outhaul | 12.2 m | (39.9 feet) | 14 mm | (0.55 inch) |
| Masthead rig | ||||
| Usage | Length | Diameter | ||
| Mainsail halyard | 44.7 m | (146.6 feet) | 14 mm | (0.55 inch) |
| Jib/genoa halyard | 44.7 m | (146.6 feet) | 14 mm | (0.55 inch) |
| Spinnaker halyard | 44.7 m | (146.6 feet) | 14 mm | (0.55 inch) |
| Jib sheet | 14.2 m | (46.5 feet) | 16 mm | (5/8 inch) |
| Genoa sheet | 14.2 m | (46.5 feet) | 16 mm | (5/8 inch) |
| Mainsheet | 35.4 m | (116.2 feet) | 16 mm | (5/8 inch) |
| Spinnaker sheet | 31.2 m | (102.3 feet) | 16 mm | (5/8 inch) |
| Cunningham | 6.1 m | (19.9 feet) | 14 mm | (0.55 inch) |
| Kickingstrap | 12.2 m | (39.9 feet) | 14 mm | (0.55 inch) |
| Clew-outhaul | 12.2 m | (39.9 feet) | 14 mm | (0.55 inch) |
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