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Alerion 38

Designer: Halsey Herreshoff  ·  Builder: Bristol Yachts (Usa)  ·  First built: 1969
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About the Alerion 38

Designed by the renowned Halsey Herreshoff and built by Bristol Yachts beginning in 1969, this elegant 38-footer represents classic American yacht design at its finest. The Alerion 38 embodies the Herreshoff legacy of creating boats that blend performance with timeless aesthetics, making it a sought-after vessel among discerning sailors who appreciate traditional craftsmanship. With its moderate displacement of 17,000 pounds and substantial ballast ratio, the Alerion 38 offers excellent stability and seaworthiness for coastal cruising and weekend adventures. The fin keel with rudder on skeg configuration provides good tracking and maneuverability, while the masthead sloop rig delivers respectable performance with 627 square feet of sail area. Bristol's quality fiberglass construction with a cored deck ensures durability and longevity. The boat's comfort ratio of 34.67 indicates a relatively stiff, quick motion that favors performance over ultimate comfort, while the low capsize screening value of 1.68 suggests good stability characteristics. Capable of hull speeds up to 7.28 knots, the Alerion 38 strikes an appealing balance between cruising comfort and sailing performance, making it ideal for sailors seeking a classic design with proven seagoing capabilities.

Core Dimensions
LOA (Length Overall) 38.00 ft / 11.58 m
LWL (Waterline Length) 29.50 ft / 8.99 m
Beam 10.75 ft / 3.28 m
Max Draft 6.00 ft / 1.83 m
Displacement 17,000.00 lb / 7,711 kg
Ballast 7,250.00 lb / 3,289 kg
Ballast Type Lead
Sail Area (Reported) 627.00 ft² / 58.25 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG w/cored deck
Designer Halsey Herreshoff
Builder Bristol Yachts (USA)
First Built 1969
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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
231
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
15.23
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
42.65
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
295.62
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
34.67
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
1.68
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. 7.28 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. 1,133.12 pounds/inch
Engine & Accommodations
Engine Make Universal
Engine Model Atomic 4
Engine Type Gas
Horsepower 30
Fuel Capacity 25 gals / 95 L
Water Capacity 62 gals / 235 L
How It Compares

vs. C&C 38, Catalina 38, Contest 38, Hallberg Rassy 382, Tartan 3800

This boat Similar boats
Dimensions
LOA
Alerion 38 ★
38.0 ft
C&C 38
38.0 ft
Catalina 38
38.0 ft
Contest 38
38.0 ft
Hallberg Rassy 382
38.0 ft
Tartan 3800
38.0 ft
LWL
Alerion 38 ★
29.5 ft
C&C 38
Catalina 38
31.5 ft
Contest 38
27.8 ft
Hallberg Rassy 382
Tartan 3800
31.0 ft
Beam
Alerion 38 ★
10.8 ft
C&C 38
Catalina 38
12.2 ft
Contest 38
11.2 ft
Hallberg Rassy 382
Tartan 3800
12.4 ft
Displacement
Alerion 38 ★
17 lbs
C&C 38
Catalina 38
16 lbs
Contest 38
16 lbs
Hallberg Rassy 382
Tartan 3800
16 lbs
Ballast
Alerion 38 ★
7 lbs
C&C 38
Catalina 38
6 lbs
Contest 38
7 lbs
Hallberg Rassy 382
Tartan 3800
7 lbs
Sail Area
Alerion 38 ★
627 sq ft
C&C 38
Catalina 38
665 sq ft
Contest 38
647 sq ft
Hallberg Rassy 382
Tartan 3800
665 sq ft
Performance
PHRF Rating (lower = faster)
Alerion 38 ★
231 s/nm
C&C 38
111 s/nm
Catalina 38
114 s/nm
Contest 38
156 s/nm
Hallberg Rassy 382
Tartan 3800
114 s/nm
SA / Displacement (higher = more powerful)
Alerion 38 ★
15.2
C&C 38
Catalina 38
16.7
Contest 38
15.8
Hallberg Rassy 382
Tartan 3800
16.8
Ballast / Disp (higher = stiffer)
Alerion 38 ★
42.7 %
C&C 38
Catalina 38
42.8 %
Contest 38
43.1 %
Hallberg Rassy 382
Tartan 3800
43.8 %
Comfort Ratio (higher = more comfortable offshore)
Alerion 38 ★
34.7
C&C 38
Catalina 38
26.3
Contest 38
33.8
Hallberg Rassy 382
Tartan 3800
26.1
Capsize Screening (lower = safer)
Alerion 38 ★
1.68
C&C 38
Catalina 38
1.94
Contest 38
1.75
Hallberg Rassy 382
Tartan 3800
1.98
Displacement / Length (lower = lighter)
Alerion 38 ★
295
C&C 38
Catalina 38
228
Contest 38
350
Hallberg Rassy 382
Tartan 3800
239
Hull Speed
Alerion 38 ★
7.3 kts
C&C 38
Catalina 38
7.5 kts
Contest 38
7.1 kts
Hallberg Rassy 382
Tartan 3800
7.5 kts
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