Bianca Lido anno 1985. Sofie 2003

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Hull

Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.

Interior

The interior is like many other boats made of mahogany.

The boat is equipped with 5-7 berths, a galley and toilet facility.

Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.

The boat is equipped with 5-7 berths, a galley and toilet facility.

Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.

Rig

The boat has 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.

Keel

Bianca Lido has a fin keel which means that it is more manoeuvrable but has less directional stability than a similar boat with a long keel.
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.
As the surface of a finn type keel is just a fraction of the total wet surface,
the difference between an iron keel and a lead keel can in reality be ignored for cruising yachts.
The boat can enter most marinas as the draft is just about 1.65 - 1.75 meter (5.41 - 5.71 ft) dependent on the load. See immersion rate below.

Engine

The boat is typical equipped with an inboard Volvo Penta engine at 18.0 hp (13 kW), which gives a max speed about 4.9 knots.

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive*e.g.* a sail drive.

The fuel tank which is made of stainless steel has a capacity of 40 liters (10 US gallons).

The transmission is a shaft drive. A shaft drive will in the long run require less maintenence than other types of drive

The fuel tank which is made of stainless steel has a capacity of 40 liters (10 US gallons).

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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Bianca Lido is 1.95, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

The capsize screening value for Bianca Lido is 1.95, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

Theoretical Maximum Hull Speed

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 6.5 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 theoretical maximal speed of a displacement boat of this length is 6.5 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for Bianca Lido is about 154 kg/cm, alternative 864 lbs/inch.

Meaning: if you load 154 kg cargo on the boat then it will sink 1 cm. Alternative, if you load 864 lbs cargo on the boat it will sink 1 inch.

Meaning: if you load 154 kg cargo on the boat then it will sink 1 cm. Alternative, if you load 864 lbs cargo on the boat it will sink 1 inch.

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 22,000 boat types and 350,000 data points.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Bianca Lido is 22.0 - 26.0.

Comparing this ratio with similar sailboats show that it is more comfortable than 66% of all similar sailboat designs.
A comfort value is just above average.

The Motion Comfort Ratio for Bianca Lido is 22.0 - 26.0.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Bianca Lido is 2.86.

Compared with other similar sailboats it is more spacy than 76% of all other designs.
It seems that the designer has chosen a significantly more spacy hull design.

The l/b ratio for Bianca Lido is 2.86.

Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Bianca Lido is 40%.

This ballast ratio shows a righting moment that is higher than 46% of all similar sailboat designs.
A righting moment (ability to resist heeling) just below average.

The ballast ratio for Bianca Lido is 40%.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Bianca Lido is 309 which categorizes this boat among 'medium weight cruisers'.

27% of all similar sailboat designs are categorized as heavier.
A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.

The DL-ratio for Bianca Lido is 309 which categorizes this boat among 'medium weight cruisers'.

SA/D (Sail Area Displacement ratio)

What is SA/D (Sail Area Displacement ratio)?

The SA/D for Bianca Lido with ISO 8666 reference sail is 16.4, with a 135% genua the SA/D is 19.4.

The SA/D ratio indicates that it is faster than 54% of all similar sailboat designs in light wind.

The SA/D for Bianca Lido with ISO 8666 reference sail is 16.4, with a 135% genua the SA/D is 19.4.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Bianca Lido is 76

The relative speed performance is 76 which means that a it is faster than 76% of all similar sailboat designs.

The Relative Speed Performance for Bianca Lido is 76

Bottom Paint

When buying anti-fouling bottom paint, it's nice to know how much to buy.
The surface of the wet bottom is about 26m^{2} (279 ft^{2}).

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.

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.

Rig

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.

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 | 30.0 m | (98.6 feet) | 10 mm | (3/8 inch) |

Jib/genoa halyard | 30.0 m | (98.6 feet) | 10 mm | (3/8 inch) |

Spinnaker halyard | 30.0 m | (98.6 feet) | 10 mm | (3/8 inch) |

Jib sheet | 9.2 m | (30.0 feet) | 12 mm | (1/2 inch) |

Genoa sheet | 9.2 m | (30.0 feet) | 12 mm | (1/2 inch) |

Mainsheet | 22.9 m | (75.0 feet) | 12 mm | (1/2 inch) |

Spinnaker sheet | 20.1 m | (66.0 feet) | 12 mm | (1/2 inch) |

Cunningham | 3.8 m | (12.3 feet) | 10 mm | (3/8 inch) |

Kickingstrap | 7.5 m | (24.6 feet) | 10 mm | (3/8 inch) |

Clew-outhaul | 7.5 m | (24.6 feet) | 10 mm | (3/8 inch) |

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References