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Us 46
Designer: William Tripp Jr.  ·  Builder: Grampian/Us Yachts  ·  First built: 1968
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About the Us 46

Produced by United States yacht builders during an era when American sailboat design was pushing boundaries, the US 46 is a capable bluewater cruising vessel that has earned a quiet but loyal following among serious offshore sailors. Designed with passage-making in mind, this sloop carries the hallmarks of a boat built to handle demanding open-ocean conditions while still offering comfortable accommodations for extended time aboard. With limited specifications readily available, prospective buyers are encouraged to inspect individual hulls carefully, as variations between production years and previous ownership can significantly influence a boat's current condition and outfitting. What is generally understood about the US 46 is that it prioritizes seakeeping ability and a well-balanced helm, making it appealing to those planning coastal cruising or longer offshore passages rather than competitive racing. Sailors researching this model often describe it as a solid, no-nonsense platform that rewards thoughtful seamanship. Its size places it in a versatile category, suitable for a liveaboard lifestyle or extended cruising by a couple or small crew. As always, a professional survey is strongly recommended before purchase.

Core Dimensions
LOA (Length Overall) 46.00 ft / 14.02 m
LWL (Waterline Length) 33.00 ft / 10.06 m
Beam 12.00 ft / 3.66 m
Max Draft 10.33 ft / 3.15 m
Displacement 25,000.00 lb / 11,340 kg
Ballast 9,000.00 lb / 4,082 kg
Ballast Type Lead
Design & Construction
Hull Type Keel/Cbrd.
Rigging Type Masthead Sloop
Construction FG
Designer William Tripp Jr.
Builder Grampian/US Yachts
First Built 1968
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Known Issues & What to Watch For

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Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
161
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
36.0
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
310.56
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 8.49 pounds/inch
Rig Dimensions
I (Foretriangle Height) 5.16 ft / 1.57 m
J (Foretriangle Base) 16.70 ft / 5.09 m
P (Mainsail Luff) 879.00 ft² / 81.66 m²
E (Mainsail Foot) 310.56
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