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Review of Fleet-O-Wing


Basic specs.

sail specifications
The Fleet-O-Wing is a small sailboat designed by the American maritime architect bureau Sparkman & Stephens in the late thirties. Only a few boats have been produced. The Fleet-O-Wing is built by the American yard Marcus C. Lowell & Son.

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Hull
The hull is made of wood.

Keel

The Fleet-O-Wing is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The boat can enter even shallow marinas as the draft is just about 0.91 - 1.01 meter (2.99 - 3.29 ft) dependent on the load. See immersion rate below.


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 Fleet-O-Wing is 2.26, indicating that this boat would not 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 5.1 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 Fleet-O-Wing is about 54 kg/cm, alternatively 303 lbs/inch.
Meaning: if you load 54 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 303 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 Fleet-O-Wing is 10.9.

Low High 58% 0 50 100
Comparing this ratio with similar sailboats show that it is more comfortable than 58% of all similar sailboat designs. This comfort value is just above average.


L/B (Length Beam Ratio)

What is L/B (Length Beam Ratio)?

The l/b ratio for Fleet-O-Wing is 2.96.

Wide Slim 88% 0 50 100
Compared with other similar sailboats it is slimmer than 88% of all other designs. It seems that the designer has chosen a significantly more speedy hull design.


Ballast Ratio

What is a Ballast Ratio?

The ballast ratio for Fleet-O-Wing is 40%.

Low High 69% 0 50 100
This ballast ratio shows a righting moment that is higher than 69% of all similar sailboat designs. A righting moment (ability to resist heeling) just above average.


D/L (Displacement Length Ratio)

What is Displacement Length Ratio?

The DL-ratio for Fleet-O-Wing is 175 which categorizes this boat among 'light racers'.

Heavy Light 46% 0 50 100
46% of all similar sailboat designs are categorized as heavier. A heavy displacement combined with smaller water plane area has lower acceleration and is more comfortable.


Maintenance

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 9m2 (96 ft2).
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

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
Jib sheet 5.4 m(17.7 feet)8 mm(5/16 inch)
Genoa sheet 5.4 m(17.7 feet)8 mm(5/16 inch)
Mainsheet 13.5 m(44.4 feet)8 mm(5/16 inch)
Spinnaker sheet11.9 m(39.0 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 Fleet-O-Wing 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