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A Scow
Designer: John O. Johnson  ·  Builder: Melges Boat Works (Usa)  ·  First built: 1901
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About the A Scow

Representing one of sailing's most exhilarating and demanding classes, this distinctive scow stands as a testament to pure speed and sailing skill. Built for inland lake racing, A Scows have dominated competitive sailing circuits across the Midwest and beyond for decades, earning a reputation as the ultimate test of crew coordination and tactical prowess. These boats showcase the classic scow design philosophy with their signature wide, flat-bottomed hulls that plane effortlessly across the water's surface. Twin bilgeboards replace a traditional keel, allowing the boat to sail in surprisingly shallow waters while maintaining exceptional pointing ability. The oversized sail plan generates tremendous power, demanding experienced crews who can handle the boat's explosive acceleration and remarkable top speeds. A Scows excel in short-course buoy racing where their phenomenal speed and agility shine brightest. The class attracts serious racing enthusiasts who appreciate the boat's unforgiving nature and the premium it places on crew work and tactical decision-making. While definitely not suited for casual day sailing or cruising, these thoroughbreds offer an unmatched adrenaline rush for sailors seeking the purest form of competitive sailing performance.

Core Dimensions
LOA (Length Overall) 38.00 ft / 11.58 m
Beam 8.00 ft / 2.44 m
Max Draft 4.00 ft / 1.22 m
Displacement 1,850.00 lb / 839 kg
Design & Construction
Hull Type Scow Twin Cbrd.
Rigging Type Fractional Sloop
Construction Wood or FG
Designer John O. Johnson
Builder Melges Boat Works (USA)
First Built 1901
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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
24.51
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
5.23
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. 7.62 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. 5.54 pounds/inch
Rig Dimensions
I (Foretriangle Height) 1.00 ft / 0.30 m
J (Foretriangle Base) Main: 350 sq.ft.
P (Mainsail Luff) 550.00 ft² / 51.10 m²
E (Mainsail Foot) Johnson Boat Works (USA)
How It Compares

vs. Imx 38, Kettenburg 38, Tripp 38

This boat Similar boats
Dimensions
LOA
A Scow ★
38.0 ft
Imx 38
Kettenburg 38
38.0 ft
Tripp 38
38.0 ft
LWL
A Scow ★
Imx 38
31.2 ft
Kettenburg 38
25.8 ft
Tripp 38
32.3 ft
Beam
A Scow ★
8.0 ft
Imx 38
12.1 ft
Kettenburg 38
8.0 ft
Tripp 38
12.3 ft
Displacement
A Scow ★
1 lbs
Imx 38
11 lbs
Kettenburg 38
12 lbs
Tripp 38
10 lbs
Ballast
A Scow ★
Imx 38
6 lbs
Kettenburg 38
Tripp 38
5 lbs
Sail Area
A Scow ★
Imx 38
910 sq ft
Kettenburg 38
561 sq ft
Tripp 38
672 sq ft
Performance
SA / Displacement (higher = more powerful)
A Scow ★
Imx 38
28.2
Kettenburg 38
17.2
Tripp 38
22.5
Ballast / Disp (higher = stiffer)
A Scow ★
Imx 38
52.3 %
Kettenburg 38
Tripp 38
55.2 %
Comfort Ratio (higher = more comfortable offshore)
A Scow ★
5.2
Imx 38
Kettenburg 38
39.4
Tripp 38
16.8
Capsize Screening (lower = safer)
A Scow ★
Imx 38
2.13
Kettenburg 38
1.40
Tripp 38
2.26
Displacement / Length (lower = lighter)
A Scow ★
24
Imx 38
173
Kettenburg 38
310
Tripp 38
139
Hull Speed
A Scow ★
7.6 kts
Imx 38
7.5 kts
Kettenburg 38
6.8 kts
Tripp 38
7.6 kts
Speed Number (higher = faster)
A Scow ★
Imx 38
3.7
Kettenburg 38
1.7
Tripp 38
4.3
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