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Comet Trio
Designer: Phil Morrison  ·  Builder: Comet Dinghies (Uk)  ·  First built: 1995
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About the Comet Trio

Designed by renowned naval architect Phil Morrison in 1995, this compact 15-foot centerboard dinghy represents a thoughtful approach to small boat sailing. Built by Comet Dinghies in the UK using fiberglass construction, the Trio offers durability and consistency that wooden alternatives often lack. With its fractional sloop rig and generous sail area of 135 square feet, this lightweight 320-pound dinghy delivers spirited performance whether you're learning the basics or honing racing skills. The 6-foot beam provides stability for newer sailors while maintaining the responsiveness that keeps experienced helms engaged. The 3.20-foot draft centerboard configuration allows exploration of shallow waters and easy beach launching. Morrison's design philosophy shines through in the boat's balanced proportions and forgiving handling characteristics. The SA/Displacement ratio of 46.22 indicates lively performance potential, while the capsize screening formula of 3.51 confirms this is definitively a protected water vessel best suited for lakes, harbors, and coastal sailing in moderate conditions. The Trio excels as a club racer, training platform, or spirited day sailer for small crews. Its combination of performance potential and approachable handling makes it equally at home in sailing schools and competitive fleets.

Core Dimensions
LOA (Length Overall) 15.00 ft / 4.57 m
Beam 6.00 ft / 1.83 m
Max Draft 3.20 ft / 0.98 m
Min Draft 0.50 ft / 0.15 m
Displacement 320.00 lb / 145 kg
Sail Area (Reported) 135.00 ft² / 12.54 m²
Design & Construction
Hull Type Centerboard Dinghy
Rigging Type Fractional Sloop
Construction FG
Designer Phil Morrison
Builder Comet Dinghies (UK)
First Built 1995
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Performance Ratios
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
68.92
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
3.37
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 4.78 kn
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. 1.64 pounds/inch
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