Review of First 35
Basic specs.
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Both the hull and the deck is made of hand laid fibreglass. A hull made of hand laid fibreglass requires only a minimum of maintenance during the sailing season.
Both the hull and the deck is a sandwich construction which improves the indoor climate. Especially when the water is colder than the air in the cabin, then the double hull insulates against cold water and reduce the condense water in the cabin.
The boat is equipped with 9 berths.
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 First 35 is 2.15, 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 7.2 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 First 35 is about 218 kg/cm, alternatively 1221 lbs/inch.
Meaning: if you load 218 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1221 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 First 35 is 20.5.
What is L/B (Length Beam Ratio)?
The l/b ratio for First 35 is 2.93.
What is Displacement Length Ratio?
The DL-ratio for First 35 is 213 which categorizes this boat among 'moderate racers'.
Maintenance
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 | ||
|---|---|---|---|---|
| Jib sheet | 10.8 m | (35.5 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.8 m | (35.5 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 27.1 m | (88.8 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 23.8 m | (78.2 feet) | 14 mm | (0.55 inch) |
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