Review of First 40.7
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 40.7 is equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a gennaker or a spinnaker for optimal speed.
The First 40.7 has been built with different keel alternatives.
Shallow keel
The First 40.7 is equipped with a shallow keel. A shallow keel allow to sail both coastal and inland waters.
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 1.90 - 2.00 meter (6.23 - 6.53 ft) dependent on the load. See immersion rate below.
Unknown keel type
The boat can enter most marinas as the draft is just about 1.69 - 1.79 meter (5.54 - 5.84 ft) dependent on the load. See immersion rate below.
Unknown keel type
First 40.7 can only enter major marinas as the draft is about 2.36 - 2.46 meter (7.74 - 8.04 ft) dependent on the load. See immersion rate below.
The boat may be equipped with an inboard Volvo Penta MD2030 diesel engine at 30 hp (22 kW).
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 Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 7.9 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 40.7 is about 266 kg/cm, alternatively 1494 lbs/inch.
Meaning: if you load 266 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1494 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 40.7 is 3.18.
The ballast ratio for First 40.7 is 39%.
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 45m2 (484 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 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 | 38.5 m | (126.4 feet) | 12 mm | (1/2 inch) |
| Jib/genoa halyard | 38.5 m | (126.4 feet) | 12 mm | (1/2 inch) |
| Spinnaker halyard | 38.5 m | (126.4 feet) | 12 mm | (1/2 inch) |
| Jib sheet | 11.9 m | (39.1 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 11.9 m | (39.1 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 29.8 m | (97.9 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 26.2 m | (86.1 feet) | 14 mm | (0.55 inch) |
| Cunningham | 5.4 m | (17.7 feet) | 12 mm | (1/2 inch) |
| Kickingstrap | 10.8 m | (35.4 feet) | 12 mm | (1/2 inch) |
| Clew-outhaul | 10.8 m | (35.4 feet) | 12 mm | (1/2 inch) |
This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.
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