Review of First Class 10
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 First Class 10 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.
Unknown keel type
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 only enter major marinas as the draft is about 1.80 - 1.90 meter (5.91 - 6.21 ft) dependent on the load. See immersion rate below.
The boat may be equipped with an inboard Yanmar 2GM diesel 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.
The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for First Class 10 is about 215 kg/cm, alternatively 1205 lbs/inch.
Meaning: if you load 215 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1205 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 First Class 10 is 3.37.
The ballast ratio for First Class 10 is 32%.
Maintenance
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 | 30.7 m | (100.8 feet) | 10 mm | (3/8 inch) |
| Jib/genoa halyard | 30.7 m | (100.8 feet) | 10 mm | (3/8 inch) |
| Spinnaker halyard | 30.7 m | (100.8 feet) | 10 mm | (3/8 inch) |
| Jib sheet | 10.4 m | (34.1 feet) | 12 mm | (1/2 inch) |
| Genoa sheet | 10.4 m | (34.1 feet) | 12 mm | (1/2 inch) |
| Mainsheet | 26.0 m | (85.3 feet) | 12 mm | (1/2 inch) |
| Spinnaker sheet | 22.9 m | (75.1 feet) | 12 mm | (1/2 inch) |
| Cunningham | 4.0 m | (13.2 feet) | 10 mm | (3/8 inch) |
| Kickingstrap | 8.0 m | (26.4 feet) | 10 mm | (3/8 inch) |
| Clew-outhaul | 8.0 m | (26.4 feet) | 10 mm | (3/8 inch) |
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