Review of LM 26

LM 26.

Basic specs.

The LM 26 is a motorsailer designed by the Danish maritime architect Bent Juul Andersen in the early eighties. A few hundred boats have been produced. The LM 26 is built by the Danish yard LM Glasfiber A/S.

Looking for a new boat? Find a LM 26 or similar boat for sale

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 boat is equipped with 2 cabins and 6 berths.

Rig

The boat equipped with 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.

Engine

The boat is typically equipped with an inboard Bukh DV20 diesel engine at 20.0 hp (14 kW).

The transmission is a saildrive.

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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for LM 26 is 2.03, indicating that this boat would not be accepted to participate in ocean races.

Immersion rate

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for LM 26 is about 157 kg/cm, alternatively 881 lbs/inch.
Meaning: if you load 157 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 881 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.

L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for LM 26 is 2.79.

Compared with other similar sailboats it is more spacy than 79% of all other designs. It seems that the designer has chosen a significantly more spacy hull design.

SA/D (Sail Area Displacement ratio)

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

The SA/D for LM 26 with ISO 8666 reference sail is 11.9, with a 135% genua the SA/D is 13.8.

The SA/D ratio indicates that it is faster than 8% of all similar sailboat designs in light wind.
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.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for LM 26 is 12

The relative speed performance is 12 which means that a it is faster than 12% of all similar sailboat designs. As this boat is a motor sailer, it is expected that the performance of a motor sailer for sail alone is lower than a dedicated sailboat.

Maintenance

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.

**Guiding dimensions of running rig**
Usage	Length		Diameter
Mainsail halyard	22.7 m	(74.5 feet)	8 mm	(5/16 inch)
Jib/genoa halyard	22.7 m	(74.5 feet)	8 mm	(5/16 inch)
Spinnaker halyard	22.7 m	(74.5 feet)	8 mm	(5/16 inch)
Jib sheet	8.1 m	(26.6 feet)	10 mm	(3/8 inch)
Genoa sheet	8.1 m	(26.6 feet)	10 mm	(3/8 inch)
Mainsheet	20.2 m	(66.4 feet)	10 mm	(3/8 inch)
Spinnaker sheet	17.8 m	(58.5 feet)	10 mm	(3/8 inch)
Cunningham	3.0 m	(9.8 feet)	8 mm	(5/16 inch)
Kickingstrap	6.0 m	(19.7 feet)	8 mm	(5/16 inch)
Clew-outhaul	6.0 m	(19.7 feet)	8 mm	(5/16 inch)

Boat owner's ideas

This section is reserved boat owner's changes, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

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

Finally

We are always looking for new photos. If you can contribute with photos for LM 26 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

[Ref 1]: ISO 8666 Small craft — Principal data.
[Ref 3]: ISO 12215-5 Small craft — Hull construction and scantlings.