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Mariner 36 Garden Ketch
Designer: Clair Oberly/W. Garden  ·  Builder: Ta Yang  ·  First built: 1972
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About the Mariner 36 Garden Ketch

With its distinctive ketch rig configuration, this Mariner 36 represents a classic approach to cruising sailboat design that prioritizes comfort and versatility over pure performance. The garden ketch designation refers to the boat's generous cockpit space and overall layout emphasis on outdoor living areas, making it particularly appealing to cruising sailors who value relaxation and entertaining aboard. The ketch rig offers significant advantages for shorthanded sailing, allowing the sail plan to be easily reduced or balanced by dropping the mainsail and sailing under jib and mizzen alone. This configuration also provides excellent flexibility in various wind conditions, making the boat well-suited for coastal cruising and extended passages where sail handling ease is paramount. Mariner boats from this era were known for their solid construction and practical layouts, designed with the serious cruising sailor in mind rather than the racing enthusiast. The 36-foot length strikes an appealing balance between manageable size for a couple and sufficient interior volume for comfortable extended cruising. While not built for speed, this design philosophy creates a forgiving, stable platform that builds confidence in developing sailors while providing the comfort that experienced cruisers appreciate during longer voyages.

Core Dimensions
LOA (Length Overall) 35.83 ft / 10.92 m
LWL (Waterline Length) 27.92 ft / 8.51 m
Beam 11.00 ft / 3.35 m
Max Draft 5.00 ft / 1.52 m
Displacement 21,000.00 lb / 9,525 kg
Ballast 7,500.00 lb / 3,402 kg
Sail Area (Reported) 605.00 ft² / 56.21 m²
Design & Construction
Hull Type Long Keel
Rigging Type Masthead Ketch
Construction FG
Designer Clair Oberly/W. Garden
Builder Ta Yang
First Built 1972
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Performance Ratios
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
12.77
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
43.95
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. 7.08
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
0.79
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) 45.0
J (Foretriangle Base) 16.5
P (Mainsail Luff) 39.0
E (Mainsail Foot) 12.0
SA Fore 371.25
SA Main 234.0
How It Compares

vs. Columbia 36, Hunter 36, Morgan Out Island 36 Ketch, Offshore 36 Cheoy Lee, Pilot 35 Hinckley

This boat Similar boats
Dimensions
LOA
Mariner 36 Garden Ketch ★
35.8 ft
Columbia 36
35.8 ft
Hunter 36
35.9 ft
Morgan Out Island 36 Ketch
35.8 ft
Offshore 36 Cheoy Lee
35.8 ft
Pilot 35 Hinckley
35.8 ft
LWL
Mariner 36 Garden Ketch ★
27.9 ft
Columbia 36
27.8 ft
Hunter 36
29.5 ft
Morgan Out Island 36 Ketch
28.0 ft
Offshore 36 Cheoy Lee
25.6 ft
Pilot 35 Hinckley
25.0 ft
Beam
Mariner 36 Garden Ketch ★
11.0 ft
Columbia 36
10.5 ft
Hunter 36
11.1 ft
Morgan Out Island 36 Ketch
11.4 ft
Offshore 36 Cheoy Lee
10.0 ft
Pilot 35 Hinckley
9.5 ft
Displacement
Mariner 36 Garden Ketch ★
21 lbs
Columbia 36
12 lbs
Hunter 36
13 lbs
Morgan Out Island 36 Ketch
16 lbs
Offshore 36 Cheoy Lee
15 lbs
Pilot 35 Hinckley
13 lbs
Ballast
Mariner 36 Garden Ketch ★
7 lbs
Columbia 36
5 lbs
Hunter 36
6 lbs
Morgan Out Island 36 Ketch
7 lbs
Offshore 36 Cheoy Lee
4 lbs
Pilot 35 Hinckley
4 lbs
Sail Area
Mariner 36 Garden Ketch ★
605 sq ft
Columbia 36
556 sq ft
Hunter 36
604 sq ft
Morgan Out Island 36 Ketch
591 sq ft
Offshore 36 Cheoy Lee
546 sq ft
Pilot 35 Hinckley
550 sq ft
Performance
PHRF Rating (lower = faster)
Mariner 36 Garden Ketch ★
Columbia 36
162 s/nm
Hunter 36
132 s/nm
Morgan Out Island 36 Ketch
Offshore 36 Cheoy Lee
Pilot 35 Hinckley
SA / Displacement (higher = more powerful)
Mariner 36 Garden Ketch ★
12.8
Columbia 36
17.0
Hunter 36
17.1
Morgan Out Island 36 Ketch
15.0
Offshore 36 Cheoy Lee
13.8
Pilot 35 Hinckley
15.4
Ballast / Disp (higher = stiffer)
Mariner 36 Garden Ketch ★
Columbia 36
Hunter 36
44.4 %
Morgan Out Island 36 Ketch
Offshore 36 Cheoy Lee
29.5 %
Pilot 35 Hinckley
33.6 %
Comfort Ratio (higher = more comfortable offshore)
Mariner 36 Garden Ketch ★
44.0
Columbia 36
26.8
Hunter 36
27.0
Morgan Out Island 36 Ketch
31.8
Offshore 36 Cheoy Lee
40.1
Pilot 35 Hinckley
37.4
Capsize Screening (lower = safer)
Mariner 36 Garden Ketch ★
1.60
Columbia 36
1.84
Hunter 36
1.86
Morgan Out Island 36 Ketch
1.82
Offshore 36 Cheoy Lee
1.59
Pilot 35 Hinckley
1.59
Displacement / Length (lower = lighter)
Mariner 36 Garden Ketch ★
Columbia 36
Hunter 36
234
Morgan Out Island 36 Ketch
Offshore 36 Cheoy Lee
425
Pilot 35 Hinckley
391
Hull Speed
Mariner 36 Garden Ketch ★
7.1 kts
Columbia 36
7.1 kts
Hunter 36
7.3 kts
Morgan Out Island 36 Ketch
7.1 kts
Offshore 36 Cheoy Lee
6.8 kts
Pilot 35 Hinckley
6.7 kts
Speed Number (higher = faster)
Mariner 36 Garden Ketch ★
0.8
Columbia 36
2.2
Hunter 36
2.3
Morgan Out Island 36 Ketch
1.2
Offshore 36 Cheoy Lee
0.9
Pilot 35 Hinckley
1.1
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