Review of Hanse 341
Basic specs.
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Both the hull and the deck is made of hand laid fibreglass. Generally, 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 core material in the sandwich construction is balsa.
The boat is equipped with 6 berths, a galley, 150.0 liter fresh water capacity, toilet facility and 40.0 liter waste water capacity.
The Hanse 341 is built 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 Hanse 341 has been built with different keel alternatives.
L-shape fin keel
One option is a L keel. An L-shape keel is a bulb keel with the shape as an L. This keel is less exposed to seaweed, fishing nets and lines.
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 enter most marinas as the draft is just about 1.55 - 1.65 meter (5.09 - 5.39 ft) dependent on the load. See immersion rate below.
L-shape fin keel
Another option is a L keel. An L-shape keel is a bulb keel with the shape as an L. This keel is less exposed to seaweed, fishing nets and lines.
This keel is also made of iron.
Hanse 341 can enter most marinas as the draft is just about 1.75 - 1.85 meter (5.74 - 6.04 ft) dependent on the load. See immersion rate below.
Unknown keel type
This keel is also made of iron.
The boat can enter even shallow marinas as the draft is just about 0.95 - 1.05 meter (3.12 - 3.42 ft) dependent on the load. See immersion rate below.
The Hanse 341 has been equipped with different engine alternatives.
Alternative 1:
The boat may be equipped with an inboard Yanmar 2GM20 FC diesel engine at 18 hp (13 kW). Calculated max speed is about 4.9 knots
The transmission is a saildrive.
Alternative 2:
Hanse 341 may be equipped with an inboard Volvo Penta MD2020 diesel engine at 19 hp (14 kW). Calculated max speed is about 5.1 knots
The transmission is a saildrive.
The fuel tank has a capacity of 90.0 liters (23 US gallons, 19 imperial gallons).
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 Hanse 341 is 1.97, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.
Hanse 341 holds a CE certification:
If less than 8 in on board the boat is by European Union certified as Class A. OCEAN: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 Hanse 341 is about 202 kg/cm, alternatively 1135 lbs/inch.
Meaning: if you load 202 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 1135 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 Hanse 341 is 22.9 - 24.0.
What is L/B (Length Beam Ratio)?
The l/b ratio for Hanse 341 is 3.04.
The ballast ratio for Hanse 341 is 33%.
What is Displacement Length Ratio?
The DL-ratio for Hanse 341 is 208 which categorizes this boat among 'light crusers & offshore racers'.
Maintenance
As balsa wood is used as sandwich core material special care must be taken in relation to work that require penetration of the sandwich construction in order to to prevent water to get in contact with the balsa wood. Otherwise the balsa wood will eventually rotten and be expensive/impossible to repair.
When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 33m2 (355 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.
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 | 10.3 m | (34.0 feet) | 12 mm | (1/2 inch) |
| Genoa sheet | 10.3 m | (34.0 feet) | 12 mm | (1/2 inch) |
| Mainsheet | 25.9 m | (84.9 feet) | 12 mm | (1/2 inch) |
| Spinnaker sheet | 22.8 m | (74.7 feet) | 12 mm | (1/2 inch) |
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