Review of Samantha 39

Basic specs.

The Samantha 39 is a sailboat designed by the maritime architect Robert Tucker in the late seventies. Only a few boats have been produced. The Samantha 39 is built by the Kenyan yard Specialised Mouldings Ltd.

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Hull

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

Interior

The boat is equipped with toilet facility.

Rig

Rig of Samantha 39 anno 1978. ´Appetite´, Flakfortet, Copenhagen, Denmark. 2008

The boat equipped with a ketch rig.

Keel

The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.

The boat can enter most marinas as the draft is just about 1.60 - 1.70 meter (5.25 - 5.55 ft) dependent on the load. See immersion rate below.

Engine

Samantha 39 is typically equipped with an inboard Perkins 4.108 diesel engine at 48.0 hp (35 kW).

The fuel tank has a capacity of 300.0 liters (79 US gallons, 65 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 Samantha 39 is 1.55, 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 Samantha 39 is about 275 kg/cm, alternatively 1540 lbs/inch.
Meaning: if you load 275 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 1540 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 Samantha 39 is 3.45.

Compared with other similar sailboats it is slimmer than 66% of all other designs. It seems that the designer has chosen a slightly more speedy hull design.

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	11.9 m	(39.0 feet)	14 mm	(0.55 inch)
Genoa sheet	11.9 m	(39.0 feet)	14 mm	(0.55 inch)
Mainsheet	29.8 m	(97.6 feet)	14 mm	(0.55 inch)
Spinnaker sheet	26.2 m	(85.9 feet)	14 mm	(0.55 inch)

Boat owner's ideas

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

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Finally

We are always looking for new photos. If you can contribute with photos for Samantha 39 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.