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Ct 37
Designer: Robert Perry  ·  Builder: Ta Yang Yacht Building Co. Ltd.  ·  First built: 1976
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About the Ct 37

With limited documentation available, the Ct 37 represents one of those intriguing sailboats that sailed somewhat under the radar in the production boat market. The "Ct" designation suggests this 37-footer likely emerged from a smaller manufacturer or represented a regional design that didn't achieve widespread distribution. Based on the era when most 37-foot production sailboats were developed, this vessel would have been positioned as a mid-sized cruiser suitable for coastal sailing and extended cruising adventures. Boats of this length typically offer a good balance between manageable size for a couple or small crew while providing enough interior volume for comfortable accommodations and adequate storage for longer passages. Without detailed specifications available, potential buyers should focus their research on finding examples to survey in person, as build quality and design execution can vary significantly among lesser-known manufacturers. The relative obscurity of the Ct 37 might work in favor of budget-conscious sailors, as these boats often represent good value compared to more recognized brands. However, this same factor means parts availability and dealer support networks may be limited, making mechanical aptitude and self-reliance particularly valuable traits for owners of this model.

Core Dimensions
LOA (Length Overall) 36.67 ft / 11.18 m
LWL (Waterline Length) 31.83 ft / 9.70 m
Beam 11.50 ft / 3.51 m
Max Draft 5.67 ft / 1.73 m
Displacement 23,870.00 lb / 10,827 kg
Ballast 7,340.00 lb / 3,329 kg
Sail Area (Reported) 832.00 ft² / 77.30 m²
Design & Construction
Hull Type Long Keel
Rigging Type Cutter
Construction FG
Designer Robert Perry
Builder Ta Yang Yacht Building Co. Ltd.
First Built 1976
Owner Reviews

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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
192
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
16.12
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
42.86
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
1.6
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. 7.56
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
1.47
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. 1.0
Rig Dimensions
I (Foretriangle Height) 50.8
J (Foretriangle Base) 19.5
P (Mainsail Luff) 44.0
E (Mainsail Foot) 15.3
SA Fore 495.3
SA Main 336.6
How It Compares

vs. Pearson 36, Seafarer 37, Union 36

This boat Similar boats
Dimensions
LOA
Ct 37 ★
36.7 ft
Pearson 36
36.6 ft
Seafarer 37
36.7 ft
Union 36
36.7 ft
LWL
Ct 37 ★
31.8 ft
Pearson 36
29.2 ft
Seafarer 37
31.3 ft
Union 36
32.0 ft
Beam
Ct 37 ★
11.5 ft
Pearson 36
11.1 ft
Seafarer 37
11.8 ft
Union 36
11.3 ft
Displacement
Ct 37 ★
23 lbs
Pearson 36
13 lbs
Seafarer 37
16 lbs
Union 36
22 lbs
Ballast
Ct 37 ★
7 lbs
Pearson 36
6 lbs
Seafarer 37
6 lbs
Union 36
7 lbs
Sail Area
Ct 37 ★
832 sq ft
Pearson 36
601 sq ft
Seafarer 37
650 sq ft
Union 36
Performance
PHRF Rating (lower = faster)
Ct 37 ★
192 s/nm
Pearson 36
138 s/nm
Seafarer 37
134 s/nm
Union 36
180 s/nm
SA / Displacement (higher = more powerful)
Ct 37 ★
16.1
Pearson 36
17.0
Seafarer 37
16.1
Union 36
Ballast / Disp (higher = stiffer)
Ct 37 ★
Pearson 36
Seafarer 37
40.5 %
Union 36
35.5 %
Comfort Ratio (higher = more comfortable offshore)
Ct 37 ★
42.9
Pearson 36
27.0
Seafarer 37
29.1
Union 36
Capsize Screening (lower = safer)
Ct 37 ★
1.60
Pearson 36
1.86
Seafarer 37
1.85
Union 36
Displacement / Length (lower = lighter)
Ct 37 ★
Pearson 36
Seafarer 37
241
Union 36
299
Hull Speed
Ct 37 ★
7.6 kts
Pearson 36
7.2 kts
Seafarer 37
7.5 kts
Union 36
Speed Number (higher = faster)
Ct 37 ★
1.5
Pearson 36
2.2
Seafarer 37
2.1
Union 36
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