The Catalina 28 has been built with more than one type of 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.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 is typically equipped with an inboard Universal M3-20 diesel engine.
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 28 is 2.01, 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 Catalina 28 is about 150 kg/cm, alternatively 844 lbs/inch.
Meaning: if you load 150 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 844 lbs cargo on the boat it will sink 1 inch.
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 28 is 23.0.
What is L/B (Length Beam Ratio)?
The l/b ratio for Catalina 28 is 2.80.
What is Displacement Length Ratio?
The DL-ratio for Catalina 28 is 274 which categorizes this boat among 'light crusers & offshore racers'.
What is SA/D (Sail Area Displacement ratio)?
The SA/D for Catalina 28 with ISO 8666 reference sail is 14.2, with a 135% genua the SA/D is 16.9.
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 | 24.9 m | (81.8 feet) | 8 mm | (5/16 inch) |
Jib/genoa halyard | 24.9 m | (81.8 feet) | 8 mm | (5/16 inch) |
Spinnaker halyard | 24.9 m | (81.8 feet) | 8 mm | (5/16 inch) |
Jib sheet | 8.7 m | (28.5 feet) | 10 mm | (3/8 inch) |
Genoa sheet | 8.7 m | (28.5 feet) | 10 mm | (3/8 inch) |
Mainsheet | 21.7 m | (71.3 feet) | 10 mm | (3/8 inch) |
Spinnaker sheet | 19.1 m | (62.7 feet) | 10 mm | (3/8 inch) |
Cunningham | 3.3 m | (10.8 feet) | 8 mm | (5/16 inch) |
Kickingstrap | 6.6 m | (21.5 feet) | 8 mm | (5/16 inch) |
Clew-outhaul | 6.6 m | (21.5 feet) | 8 mm | (5/16 inch) |
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