Review of Formula 28
Basic specs.
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The Formula 28 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 boat can enter most marinas as the draft is just about 1.70 - 1.80 meter (5.58 - 5.88 ft) dependent on the load. See immersion rate below.
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.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Formula 28 is about 155 kg/cm, alternatively 870 lbs/inch.
Meaning: if you load 155 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 870 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 Formula 28 is 2.96.
Maintenance
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.
| Usage | Length | Diameter | ||
| Mainsail halyard | 26.5 m | (86.8 feet) | 8 mm | (5/16 inch) |
| Jib/genoa halyard | 26.5 m | (86.8 feet) | 8 mm | (5/16 inch) |
| Spinnaker halyard | 26.5 m | (86.8 feet) | 8 mm | (5/16 inch) |
| Jib sheet | 8.3 m | (27.2 feet) | 10 mm | (3/8 inch) |
| Genoa sheet | 8.3 m | (27.2 feet) | 10 mm | (3/8 inch) |
| Mainsheet | 20.7 m | (68.0 feet) | 10 mm | (3/8 inch) |
| Spinnaker sheet | 18.2 m | (59.8 feet) | 10 mm | (3/8 inch) |
| Cunningham | 3.8 m | (12.5 feet) | 8 mm | (5/16 inch) |
| Kickingstrap | 7.6 m | (25.0 feet) | 8 mm | (5/16 inch) |
| Clew-outhaul | 7.6 m | (25.0 feet) | 8 mm | (5/16 inch) |
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