Review of Medusa

Medusa.

Basic specs.

The Medusa is a small motorsailer designed by the Finnish maritime architect Love Still. A few hundred boats have been produced. The Medusa is built by the Finnish yard Fibå Vene Oy.

Looking for a new boat? Find a Medusa or similar boat for sale

Hull

The hull 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 a galley and toilet facility.
The headroom is above average

Keel

Keel of Medusa.

Engine

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

The fuel tank has a capacity of 60 liters (15 US gallons, 13 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.

Stability and Safety

What is Capsize Screening Formula (CSF)?

The capsize screening value for Medusa is 1.94, indicating that this boat could - if evaluated by this formula alone - 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 Medusa is about 127 kg/cm, alternatively 712 lbs/inch.
Meaning: if you load 127 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 712 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 Medusa is 3.04.

Compared with other similar sailboats it is slimmer than 58% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.

RSP (Relative Speed Performance)

What is Relative Speed Performance?

The Relative Speed Performance for Medusa is 5

The relative speed performance is 5 which means that a it is faster than 5% 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

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
Jib sheet	7.6 m	(24.9 feet)	10 mm	(3/8 inch)
Genoa sheet	7.6 m	(24.9 feet)	10 mm	(3/8 inch)
Mainsheet	19.0 m	(62.3 feet)	10 mm	(3/8 inch)
Spinnaker sheet	16.7 m	(54.9 feet)	10 mm	(3/8 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 Medusa 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.