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Olson 911 S
Designer: Carl Schumacher  ·  Builder: Pacific Boats (Usa) /Ericson Yachts (Usa)  ·  First built: 1985
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About the Olson 911 S

Carl Schumacher's design philosophy of lightweight speed with seaworthiness shines through in this distinctive 30-foot performance cruiser from the mid-1980s. Built by Pacific Boats and later Ericson Yachts, the Olson 911 S represents the evolution of the popular Olson racing series into a more versatile platform suitable for both spirited sailing and comfortable cruising. The boat's fin keel and spade rudder configuration, combined with a relatively light 7,200-pound displacement, delivers impressive performance characteristics. With a sail area to displacement ratio of 20.45, this yacht offers excellent light-air performance while maintaining the stability needed for coastal cruising and offshore passages. The low comfort ratio of 18.74 reflects Schumacher's racing heritage, prioritizing speed over interior volume. The fiberglass construction and masthead sloop rig provide reliability and straightforward handling, making it an excellent choice for sailors seeking performance without excessive complexity. Its 6.70-knot hull speed and balanced design make it equally at home in weekend club racing or extended coastal cruising. The capsize screening value of 2.14 indicates good stability for offshore work, while the modest 15-horsepower auxiliary provides adequate power for maneuvering in tight quarters or during calm conditions.

Core Dimensions
LOA (Length Overall) 29.92 ft / 9.12 m
LWL (Waterline Length) 25.00 ft / 7.62 m
Beam 10.33 ft / 3.15 m
Max Draft 5.40 ft / 1.65 m
Displacement 7,200.00 lb / 3,266 kg
Ballast 3,200.00 lb / 1,451 kg
Ballast Type Lead
Sail Area (Reported) 475.00 ft² / 44.13 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Carl Schumacher
Builder Pacific Boats (USA) /Ericson Yachts (USA)
First Built 1985
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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
 126
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
 20.45
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
 44.44
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
 205.71
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
 18.74
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
 2.14
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. 6.70 kn
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
 3.01
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. 922.76 pounds/inch
SA/Displacement (Calc) Calculated Sail Area to Displacement ratio using actual measured sail dimensions rather than reported values. More precise than the reported SA/Disp figure. 20.38
Rig Dimensions
I (Foretriangle Height) 42.00 ft / 12.80 m
J (Foretriangle Base) 12.33 ft / 3.76 m
P (Mainsail Luff) 36.00 ft / 10.97 m
E (Mainsail Foot) 11.92 ft / 3.63 m
SA Fore 258.93 ft² / 24.06 m²
SA Main 214.56 ft² / 19.93 m²
SA Total (100%) 473.49 ft² / 43.99 m²
Est. Forestay Length 43.77 ft / 13.34 m
Engine & Accommodations
Engine Make Yanmar
Engine Model 2GMF
Engine Type Diesel
Horsepower 15
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