Formosa 46 Cutter

Description

The Formosa 46 Cutter, a robust fiberglass cutter-rigged ketch (often configured as a cutter) designed by William Garden and built by Formosa Boat Building Co. in Taiwan from the mid-1970s to early 1980s, epitomizes the era's emphasis on heavy-displacement blue water cruisers, with approximately 100 units produced at an affordable price point that made ocean voyaging accessible to aspiring adventurers. Measuring 46 feet LOA with a 14-foot beam, 5.5-foot draft, and 32,000 pounds displacement (including 12,000 pounds of external lead ballast), it boasts a full keel for tracking and stability, a clipper bow for wave-slicing prowess, and a conservative sail area-to-displacement ratio of around 15, enabling steady 6-7 knot passages in trades while handling gales with a motion that's described as "seaworthy but wet" by owners. Its teak-rich interior offers surprising volume for a couple or small family—featuring a double Pullman berth aft, U-shaped galley, nav station, saloon with settees, and V-berth forward—though the 6-foot headroom and occasional quality variances (like blister-prone gelcoat or chainplate leaks from the builder's rushed production) demand diligent maintenance.

Construction Details

Designer William Garden
Builder Formosa Boat Building Co.
Length 46.000 ft
LOA 30.000 ft
LWL 22.670 ft
Beam 10.500 ft
Max Draft 4.000 ft
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The standard boat dimensions

i 52.30 ft
j 17 ft
p 49.50 ft
e 16 ft
p2 -
e2 -
i2 -
j2 -

Sails

Formosa 46 Cutter - MAINSAIL

Luff * 49.5 ft - (15088 mm)
Foot * 16 ft - (4877 mm)
Leech * 51.22 ft - (15612 mm)
Tack Angle * 88 °
Diagonal * 51.49 ft - (15694 mm)
Head (inches) * 6 in - (152 mm)
Area * 406.57 ft²
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Formosa 46 Cutter - JIBSAIL

Luff 51 ft - (15545 mm)
Foot 24 ft - (7315 mm)
Leech 47 ft - (14326 mm)
Percentage LP * 129.65 %
Length Perpendicular * 22.04 ft - (6718 mm)
Deck Angle * 5.29 °
Area * 562.12 ft²
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Formosa 46 Cutter - JIBSAIL

Luff * 43.99 ft - (13408 mm)
Foot * 22.58 ft - (6882 mm)
Leech * 38.09 ft - (11610 mm)
Percentage LP * 115 %
Length Perpendicular * 19.55 ft - (5959 mm)
Deck Angle * 12.02 °
Area * 429.99 ft²
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Formosa 46 Cutter - GENOA

Luff * 52.99 ft - (16151 mm)
Foot * 29.29 ft - (8928 mm)
Leech * 49.62 ft - (15124 mm)
Percentage LP * 150 %
Length Perpendicular * 27 ft - (8230 mm)
Deck Angle * 3.99 °
Area * 715.32 ft²
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Formosa 46 Cutter - GENOA

Luff 51.66 ft - (15746 mm)
Foot 26.18 ft - (7980 mm)
Leech 50.8 ft - (15484 mm)
Percentage LP * 139.39 %
Length Perpendicular * 25.09 ft - (7647 mm)
Deck Angle * -1.2 °
Area * 647.99 ft²
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Formosa 46 Cutter - GENOA

Luff * 52.24 ft - (15923 mm)
Foot * 27.5 ft - (8382 mm)
Leech * 49.09 ft - (14963 mm)
Percentage LP * 150 %
Length Perpendicular * 25.5 ft - (7772 mm)
Deck Angle * 3.97 °
Area * 666.09 ft²
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Formosa 46 Cutter - GENOA

Luff 52.5 ft - (16002 mm)
Foot 27.16 ft - (8278 mm)
Leech 50.16 ft - (15289 mm)
Percentage LP * 141.72 %
Length Perpendicular * 25.51 ft - (7775 mm)
Deck Angle * 1.23 °
Area * 669.72 ft²
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Formosa 46 Cutter - GENOA

Luff 52 ft - (15850 mm)
Foot 26 ft - (7925 mm)
Leech 49 ft - (14935 mm)
Percentage LP * 134.67 %
Length Perpendicular * 24.24 ft - (7388 mm)
Deck Angle * 2.4 °
Area * 630.14 ft²
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Formosa 46 Cutter - GENOA

Luff 49.66 ft - (15136 mm)
Foot 25.5 ft - (7772 mm)
Leech 48 ft - (14630 mm)
Percentage LP * 134.17 %
Length Perpendicular * 24.15 ft - (7361 mm)
Deck Angle * -0.12 °
Area * 599.71 ft²
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Formosa 46 Cutter - GENOA

Luff 48 ft - (14630 mm)
Foot 30 ft - (9144 mm)
Leech 44 ft - (13411 mm)
Percentage LP * 149.67 %
Length Perpendicular * 26.94 ft - (8211 mm)
Deck Angle * 7.3 °
Area * 646.46 ft²
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Formosa 46 Cutter - GENOA

Luff 52 ft - (15850 mm)
Foot 26.18 ft - (7980 mm)
Leech 50 ft - (15240 mm)
Percentage LP * 137.44 %
Length Perpendicular * 24.74 ft - (7541 mm)
Deck Angle * 0.24 °
Area * 643.34 ft²
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Formosa 46 Cutter - GENOA

Luff 51.5 ft - (15697 mm)
Foot 28.5 ft - (8687 mm)
Leech * 50.49 ft - (15389 mm)
Percentage LP * 150.44 %
Length Perpendicular * 27.08 ft - (8254 mm)
Deck Angle * -0.66 °
Area * 697.29 ft²
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Formosa 46 Cutter - ASYMMETRICAL

Luff 53 ft - (16154 mm)
Foot 30 ft - (9144 mm)
Leech 50 ft - (15240 mm)
Perc LP * 165 %
Area * 1192 ft²
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Formosa 46 Cutter - STORMJIB

Luff * 30.25 ft - (9220 mm)
Foot * 12.77 ft - (3892 mm)
Leech * 24.76 ft - (7547 mm)
Perc LP * 60 %
Length Perp * 10.2 ft - (3109 mm)
Deck Angle * 19 °
Area * 154.23 ft²
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Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.

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