Back to Search
G Cat 57
Designer: Hans Geissler  ·  Builder: G-Cat (Usa)  ·  First built: 1980
+ Add to Compare
About the G Cat 57

With limited specifications publicly available, the G Cat 57 represents an intriguing entry in the performance catamaran market that warrants further investigation by serious multihull enthusiasts. This 57-foot catamaran appears designed to bridge the gap between high-performance sailing and extended cruising capabilities, though detailed technical information remains scarce in mainstream boating resources. Based on its length and catamaran configuration, the G Cat 57 would likely excel in coastal and offshore passages where speed and stability matter most. The twin-hull design inherently provides the shallow draft and reduced heeling that makes catamarans attractive for exploring diverse cruising grounds, from shallow tropical waters to challenging offshore conditions. The relative obscurity of detailed specifications suggests this model may have had limited production or represents a specialized design for particular markets. For potential buyers researching the G Cat 57, this scarcity of readily available information underscores the importance of connecting directly with previous owners, brokers familiar with the model, or the original manufacturer to understand the boat's true capabilities, construction quality, and sailing characteristics before making any purchasing decisions.

Core Dimensions
LOA (Length Overall) 18.67 ft / 5.69 m
LWL (Waterline Length) 17.50 ft / 5.33 m
Beam 8.00 ft / 2.44 m
Displacement 360.00 lb / 163 kg
Design & Construction
Hull Type Catamaran (no boards/asym.)
Rigging Type Frac. Sloop (Rotating Spar)
Construction FG
Designer Hans Geissler
Builder G-Cat (USA)
First Built 1980
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

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
29.99
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
1.94
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
4.5
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. 5.61 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. 3.0 pounds/inch
Rig Dimensions
I (Foretriangle Height) 74.39
P (Mainsail Luff) 235.00 ft² / 21.83 m²
E (Mainsail Foot) 29.99
Find a G Cat 57 For Sale