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Dehler 37S
Designer: Van De Stadt  ·  Builder: Dehler  ·  First built: 1983
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About the Dehler 37S

Designed by renowned naval architect E.G. van de Stadt and built by Germany's Dehler Yachts starting in 1983, this 37-footer represents a compelling blend of performance and practicality. The fiberglass construction features a modern fin keel with spade rudder configuration that delivers responsive handling and solid upwind performance, while the fractional sloop rig provides versatility across varying wind conditions. With a displacement of 12,787 pounds and nearly half that weight carried as ballast, the boat strikes an appealing balance between stability and speed. The generous sail area of 348 square feet gives this yacht plenty of power, reflected in its impressive sail area-to-displacement ratio that marks it as a spirited performer. The relatively low comfort ratio of 25.28 indicates a boat designed more for sailing efficiency than heavy cruising accommodations, while the capsize screening formula of 1.94 suggests good stability characteristics for coastal and offshore passages. This design appeals particularly to sailors seeking a boat capable of both spirited day sailing and comfortable coastal cruising. The Dehler 37S has earned respect for its solid construction, balanced helm, and ability to maintain speed in light to moderate conditions, making it an excellent choice for those prioritizing sailing performance without sacrificing seaworthiness.

Core Dimensions
LOA (Length Overall) 37.07 ft / 11.30 m
LWL (Waterline Length) 28.21 ft / 8.60 m
Beam 11.32 ft / 3.45 m
Max Draft 5.41 ft / 1.65 m
Displacement 12,787.00 lb / 5,800 kg
Ballast 6,173.00 lb / 2,800 kg
Sail Area (Reported) 348.00 ft² / 32.33 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer van de Stadt
Builder Dehler
First Built 1983
Related Sailboats X 372 · First 375 Beneteau · J/37 · Express 37 · Dehler 372
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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
10.22
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
48.28
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
254.28
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
25.28
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
1.94
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. 7.12 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. 1,141.03 pounds/inch
How It Compares

vs. Dehler 372, Express 37, First 375 Beneteau, J/37, X 372

This boat Similar boats
Dimensions
LOA
Dehler 37S ★
37.1 ft
Dehler 372
37.1 ft
Express 37
37.1 ft
First 375 Beneteau
37.1 ft
J/37
37.0 ft
X 372
37.0 ft
LWL
Dehler 37S ★
28.2 ft
Dehler 372
28.2 ft
Express 37
30.8 ft
First 375 Beneteau
33.2 ft
J/37
30.8 ft
X 372
29.5 ft
Beam
Dehler 37S ★
11.3 ft
Dehler 372
11.3 ft
Express 37
11.5 ft
First 375 Beneteau
12.3 ft
J/37
12.1 ft
X 372
11.7 ft
Displacement
Dehler 37S ★
12 lbs
Dehler 372
12 lbs
Express 37
9 lbs
First 375 Beneteau
15 lbs
J/37
12 lbs
X 372
11 lbs
Ballast
Dehler 37S ★
6 lbs
Dehler 372
6 lbs
Express 37
4 lbs
First 375 Beneteau
5 lbs
J/37
4 lbs
X 372
4 lbs
Sail Area
Dehler 37S ★
348 sq ft
Dehler 372
603 sq ft
Express 37
639 sq ft
First 375 Beneteau
648 sq ft
J/37
641 sq ft
X 372
593 sq ft
Performance
PHRF Rating (lower = faster)
Dehler 37S ★
Dehler 372
134 s/nm
Express 37
72 s/nm
First 375 Beneteau
J/37
75 s/nm
X 372
95 s/nm
SA / Displacement (higher = more powerful)
Dehler 37S ★
10.2
Dehler 372
17.7
Express 37
22.4
First 375 Beneteau
16.8
J/37
19.4
X 372
19.0
Ballast / Disp (higher = stiffer)
Dehler 37S ★
48.3 %
Dehler 372
Express 37
46.9 %
First 375 Beneteau
34.3 %
J/37
40.0 %
X 372
43.1 %
Comfort Ratio (higher = more comfortable offshore)
Dehler 37S ★
25.3
Dehler 372
25.2
Express 37
17.9
First 375 Beneteau
24.5
J/37
29.0
X 372
20.6
Capsize Screening (lower = safer)
Dehler 37S ★
1.94
Dehler 372
1.94
Express 37
2.15
First 375 Beneteau
1.98
J/37
1.67
X 372
2.10
Displacement / Length (lower = lighter)
Dehler 37S ★
254
Dehler 372
Express 37
149
First 375 Beneteau
188
J/37
136
X 372
195
Hull Speed
Dehler 37S ★
7.1 kts
Dehler 372
7.1 kts
Express 37
7.4 kts
First 375 Beneteau
7.7 kts
J/37
8.7 kts
X 372
7.3 kts
Speed Number (higher = faster)
Dehler 37S ★
Dehler 372
2.2
Express 37
4.1
First 375 Beneteau
2.8
J/37
X 372
3.0
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