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Hull

The hull is made of hand laid fibreglass while the deck is made of fibreglass. Generally, a hull made of hand laid 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.

The deck is a double deck which improves the indoor climate.

The deck is a double deck which improves the indoor climate.

Interior

The boat is equipped with 2 cabins, 5 berths, a galley and toilet facility.

The headroom is above average

The headroom is above average

Rig

Rig of LM 30.

Keel

The LM 30 has been built with more than one type of keel.

One option is a fin keel. A boat with a fin keel 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 fin 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 1.50 - 1.60 meter (4.92 - 5.22 ft) dependent on the load. See immersion rate below.

Engine

LM 30 is typically equipped with an inboard Volvo Penta MD 17C diesel engine.

The transmission is a saildrive.

The fuel tank which is made of stainless steel has a capacity of 200.0 liters (52 US gallons, 43 imperial 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 LM 30 is 1.76, 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 6.9 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.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level.
The immersion rate for LM 30 is about 163 kg/cm, alternatively 915 lbs/inch.

Meaning: if you load 163 kg cargo on the boat then it will sink 1 cm.
Alternatively, if you load 915 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 26,000 different boat types and 350,000 data points.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for LM 30 is 30.5.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for LM 30 is 3.07.

Ballast Ratio

The ballast ratio for LM 30 is 36%.

D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for LM 30 is 291 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 LM 30 with ISO 8666 reference sail is 10.9, with a 135% genua the SA/D is 13.0.

Don't panic! It is expected that motor sailers has a low SA/D value as this is the natural consequence of the design combining sailing and motor boat characteristics.

Over- / underrigged

Don't panic! It is expected that motor sailers are underrigged as this is the natural consequence of the design combining sailing and motor boat characteristics.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for LM 30 is 12

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 27m^{2} (290 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.

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.

Usage | Length | Diameter | ||

Mainsail halyard | 26.1 m | (85.5 feet) | 10 mm | (3/8 inch) |

Jib/genoa halyard | 26.1 m | (85.5 feet) | 10 mm | (3/8 inch) |

Spinnaker halyard | 26.1 m | (85.5 feet) | 10 mm | (3/8 inch) |

Jib sheet | 9.3 m | (30.7 feet) | 12 mm | (1/2 inch) |

Genoa sheet | 9.3 m | (30.7 feet) | 12 mm | (1/2 inch) |

Mainsheet | 23.4 m | (76.7 feet) | 12 mm | (1/2 inch) |

Spinnaker sheet | 20.6 m | (67.5 feet) | 12 mm | (1/2 inch) |

Cunningham | 3.1 m | (10.2 feet) | 10 mm | (3/8 inch) |

Kickingstrap | 6.2 m | (20.3 feet) | 10 mm | (3/8 inch) |

Clew-outhaul | 6.2 m | (20.3 feet) | 10 mm | (3/8 inch) |

Boat owner's ideas

This section shown boat owner's changes, improvements, etc. Here you might find inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what to look for.

Finally

We are always looking for new photos. If you can contribute with photos for LM 30 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us. Criticism helps us to improve.

References