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Review of Finngulf 28 e


Basic specs.

sail specifications
The Finngulf 28 e is a sailboat designed by the maritime architect Karl-Johan Stråhlmann in the late nineties. Less than 100 boats have been produced.

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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. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all.


Rig

The Finngulf 28 e is equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a gennaker or a spinnaker for optimal speed.


Engine

The boat may be equipped with an inboard Volvo Penta MD2020 diesel engine at 18 hp (13 kW). Calculated max speed is about 6.0 knots

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 Finngulf 28 e is 2.00, 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 6.7 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 Finngulf 28 e is about 149 kg/cm, alternatively 837 lbs/inch.
Meaning: if you load 149 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 837 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.

Motion Comfort Ratio

What is Motion Comfort Ratio (MCR)?

The Motion Comfort Ratio for Finngulf 28 e is 20.2.

Low High 42% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 42% of all similar sailboat designs. This comfort value is just below average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Finngulf 28 e is 2.97.

Slim Wide 62% 0 50 100
Compared with other similar sailboats it is more spacy than 62% of all other designs. It seems that the designer has chosen a slightly more spacy hull design.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Finngulf 28 e is 191 which categorizes this boat among 'light racers'.

Heavy Light 76% 0 50 100
76% of all similar sailboat designs are categorized as heavier. A light displacement requires less sailarea and has higher accellerations.


SA/D (Sail Area Displacement ratio)

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

The SA/D for Finngulf 28 e with ISO 8666 reference sail is 17.9, with a 135% genua the SA/D is 20.9.

Low High 73% 0 50 100
The SA/D ratio indicates that it is faster than 73% of all similar sailboat designs in light wind.


Maintenance

Rig

Dimensions of sail for fractional rig.

mainsail specifications headsail specifications

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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
UsageLengthDiameter
Mainsail halyard 27.5 m(90.1 feet)8 mm(5/16 inch)
Jib/genoa halyard27.5 m(90.1 feet)8 mm(5/16 inch)
Spinnaker halyard27.5 m(90.1 feet)8 mm(5/16 inch)
Jib sheet 8.6 m(28.2 feet)10 mm(3/8 inch)
Genoa sheet8.6 m(28.2 feet)10 mm(3/8 inch)
Mainsheet 21.5 m(70.6 feet)10 mm(3/8 inch)
Spinnaker sheet18.9 m(62.1 feet)10 mm(3/8 inch)
Cunningham3.8 m(12.5 feet)8 mm(5/16 inch)
Kickingstrap7.6 m(25.1 feet)8 mm(5/16 inch)
Clew-outhaul7.6 m(25.1 feet)8 mm(5/16 inch)

Boat owner's ideas

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

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Finally

We are always looking for new photos. If you can contribute with photos for Finngulf 28 e 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